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G L E I T T E C H N I K








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© 1996 SKC Gleittechnik GmbH, RödentalEdition November 2015, V-Index E1.55

Copyright

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Please visit our

Internet-Site

www.skc-technik.de

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Company

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With more than 45 years ofexperience SKC is one ofthe pioneers in the produc-tion and use of malleableviscous materials.

SKC products are success-fully used by the machinetool/machine building indus-tries and related areas.

SKC Gleittechnik GmbH

High quality materials, atten-tion to detail and compo-nent advice make SKC themarket leader with world-wide presence in this tech-nology.

Furthermore, SKC has ac-quired an international re-putation for research in thearea of tribology.

SKSKSKSKSKCCCCC-----TTTTTeameameameameam

Matthias SchmidtMatthias SchmidtMatthias SchmidtMatthias SchmidtMatthias [email protected]

KKKKKai Schmidtai Schmidtai Schmidtai Schmidtai [email protected]

Christoph SchmidtChristoph SchmidtChristoph SchmidtChristoph SchmidtChristoph [email protected], PurchasingQuality Management

Bernhard LBernhard LBernhard LBernhard LBernhard [email protected] Service

Anette MotschmannAnette MotschmannAnette MotschmannAnette MotschmannAnette [email protected]

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Agencies

Agencies

SKC-products areavailable in manycountries. This listshows all our agen-cies. For delivery tocountries which arenot listed here, pleasecall our central officein Germany.

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GermanyGermanyGermanyGermanyGermanySKC Gleittechnik GmbHPostfach 1420D-96469 RödentalTel. +49 (0) 9563 7235-0Fax +49 (0) 9563 [email protected]

Great BritainGreat BritainGreat BritainGreat BritainGreat BritainM. Buttkereit Ltd.Unit 2, Britannia RoadGB Sale, Cheshire M33 2ADTel. +44 (0) 161 9695418Fax +44 (0) 161 [email protected]

IndiaIndiaIndiaIndiaIndiaH.Y.T. EngineeringCompany Pvt. Ltd.378, ‘J’ Block, MIDCPune - 411 026Tel. +91-20-7111481-2Fax +91-20-7124619 / [email protected]

ItalyItalyItalyItalyItalyT.M.M. s.r.l.Via O. Guerrini, 4I-20133 MilanoTel. +39/02/70602666Fax +39/02/[email protected]

JapanJapanJapanJapanJapanCKB Corporation4F. Yamada Aoyama Bldg.2-10-6 Shibuya, Shibuya-kuTokyo 150Tel. +81-3-3498-2131Fax [email protected]

RRRRRepublic of Kepublic of Kepublic of Kepublic of Kepublic of KoreaoreaoreaoreaoreaDOMUN Universal Co.Hagye-ro 9-29 105-203,Jinyeong-eup,621-802 Gimhae-si, South KoreaTel. +82/55/9050919Fax +82/55/7900912Mr. [email protected]

SpainSpainSpainSpainSpainEurotécnica J. RuizGeneral Davila 210B, 9°DES-39006 SantanderTel. +34/942/574197Fax +34/942/[email protected]

TTTTTaiwanaiwanaiwanaiwanaiwanBRYANT International Co., Ltd.1F, No. 87, Sec. 1, Shih Pai Rd.TW - TaipeiTel. +886-2-28282929Fax [email protected]

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Choice Table

MaterialMaterialMaterialMaterialMaterial Spatula methodSpatula methodSpatula methodSpatula methodSpatula method Injection methodInjection methodInjection methodInjection methodInjection method PPPPPouring methodouring methodouring methodouring methodouring method DescriptionDescriptionDescriptionDescriptionDescriptionSKC 53 standard type for application by spatula

SKC 57 standard type for application by injection

SKC 55 reduced application and hardening time

SKC 58 especially low-viscosity coating for joint fa-ces, pouring method, long application andhardening time

MaterialMaterialMaterialMaterialMaterial Spatula methodSpatula methodSpatula methodSpatula methodSpatula method Injection methodInjection methodInjection methodInjection methodInjection method PPPPPouring methodouring methodouring methodouring methodouring method DescriptionDescriptionDescriptionDescriptionDescriptionSKC 3 very high loading capacity and resistance to

wearSKC 60 compared with SKC 3: improved sliding

properties, standard type for injection me-thod

SKC 62 technical properties as SKC 60, lower vis-cosity, for long guideways

SKC 63 technical properties as SKC 60, applicableby spatula

SKC 63 R repair compound, rapid hardening, for re-pair works of seizures and blow holes

SKC 90 especially low-viscosity compound, stan-dard type for pouring method

SKC 400 ELF coating with a high PTFE rate, very lowcoefficient of friction; colour: blue

SKC 600 coating with a high PTFE rate, very lowcoefficient of friction; colour: grey

Choice Table for SKC-Coatings

Slideway CoatingsSlideway CoatingsSlideway CoatingsSlideway CoatingsSlideway Coatings

Coatings for Joint FCoatings for Joint FCoatings for Joint FCoatings for Joint FCoatings for Joint Facesacesacesacesaces

We are also producing customer-specific coatings meeting various requirements (e. g. conductivity, elasticity, with metallic or non-metal-lic fillers), as well as sealing compounds or adhesives on epoxy-resin basis.For further information please contact our technical experts.

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Slideway Coatings

Slideway Coatings

SKC slideway coatings areused for the production ofguideways and sliding sur-faces. Originally developedto be used for machine-tools, today, they are ap-plied for industries beingmost different from eachother as e. g. constructionof heavy machinery or ofprinting machines, they evenfound entry in opticalindustry.

Apart from the optimaltechnical properties, for-ming-to-size technique is of-fering a great variety of al-ternatives for a cost-savingproduction of surfaces inmost different designs.

Slideway Coating SKSlideway Coating SKSlideway Coating SKSlideway Coating SKSlideway Coating SKC 60C 60C 60C 60C 60standard type

application by injection

Slideway Coating SKSlideway Coating SKSlideway Coating SKSlideway Coating SKSlideway Coating SKC 62C 62C 62C 62C 62low viscosity

application by injection

Slideway Coating SKSlideway Coating SKSlideway Coating SKSlideway Coating SKSlideway Coating SKC 63C 63C 63C 63C 63standard type

application by spatula

Slideway Coating SKSlideway Coating SKSlideway Coating SKSlideway Coating SKSlideway Coating SKC 63 RC 63 RC 63 RC 63 RC 63 Rfast-hardening repair compound


Slideway Coating SKSlideway Coating SKSlideway Coating SKSlideway Coating SKSlideway Coating SKC 3C 3C 3C 3C 3high loading capacity


Slideway Coating SKSlideway Coating SKSlideway Coating SKSlideway Coating SKSlideway Coating SKC 400 ELFC 400 ELFC 400 ELFC 400 ELFC 400 ELFPTFE-slideway coating

application by spatula or injection

Slideway Coating SKSlideway Coating SKSlideway Coating SKSlideway Coating SKSlideway Coating SKC 600C 600C 600C 600C 600PTFE-slideway coating

application by spatula or injection

Slideway coating SKSlideway coating SKSlideway coating SKSlideway coating SKSlideway coating SKC 90C 90C 90C 90C 90standard type

pouring method

Advantageshigh accuracyanti-stick-slip-behaviourvery high wear resistancehigh dampinghigh accuracy to sizeexcellent adhesionproperties displayed un-der emergency conditionscost-saving forming-to-size techniqueinterchangeability whenforming from a master

Fields of applicatonmachine toolsforming machinessheet-metal workingmachinesprinting machinespaper machinesspecial machinerymeasuring machinesplastic machinesoptical appliancesmachine overhaulinghandling devicespumpshydraulic toolstoolingshydrostatic guideway systemsaerostatic guideway systems

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Slideway Coatings • Diagramme of Frictional Characteristics

GG 25 - GG 25p = 10 N/cm²

SKC 3 - GG 25p = 10 N/cm²

SKC 60 - GG 25p = 10 N/cm²

10-6 10-5 10-4 10-3 10-2 10-1 1 10 m/min

Diagramme of Frictional CharacteristicsSKC 3 / SKC 60

0

0,10

0,05

0,15

0,20

0,25

0,30

f0 fv

boundary conditions mixed conditions hydrodynamic frictionof friction of friction

sliding speed

Lubricant:Shell Tonna T 68

coef

fici

ent

of f

rict

ion

The diagramme of fricitonal charac-teristics shows a comparison of thefrictional characteristics of SKC 3 -GG 25 (grey cast) and SKC 60 - GG25 to the pairing GG 25 - GG 25.The advantages of the SKC slidewaycoatings are evident from the follo-wing facts, which are brought out bythe graph:1. The static friction fo is very low, itis about 1/7 of the value of adherentfriction of GG 25 - GG 25 pairings.Corespondingly, the starting forcesand the amount of elastic prestres-sings which the drives generate untilstarting, are low.2. The frictional characteristic ofmotion, i. e. the kinetic friction, initi-ally rises with increasing sliding

speed and will then drop again,when the hydro-dynamic lubricatingfilm is built up. The influence of dif-ferent slide-pairings as, e. g. SKC-cast / cast hardened / steel and steelhardened on the frictional characte-ristics can be ignored.When positioning components, theincrease of the frictional functionavoids the undesired, jerky stress-relief of the drive elements after thestart, and allows exact feed in mic-rons. On the reduction of the sli-ding speed to a standstill, and theend of a feed, the frictional functiondeclines. Thus, a high stress-relief ofthe drive elements is achieved, andan undesired stick-slip, caused byrelief of stresses under the influenceof shocks and of fluctuations of thecutting force are avoided.When machine elements are slidingat low speed - in the range ofboundary conditions - the increaseof the frictional function generate adamping of the sliding process, thusavoiding the undesired stick-slip ef-fect. In contrast to this, the decrea-sing frictional function of other pai-rings of sliding materials leads to aninstability of the sliding process andto stick-slip phenomena.3. The amount of the friction coef-ficient is not only dependent on thepairing. Using an adequate lubricantis also of importance. Apart fromtheir good tribological properties,modern bedway oils also offer anexcellent behaviour of de-emulsifi-cation. If lubricant penetrates intothe guideway gap, the media willnot get mixed; therefore, in normalcase, difficulties can be avoided. Im-peccable lubrication is the only war-ranty for the total function of high-quality machines.

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Slideway Coatings - Characteristics

SKC Slideway Coatings - Characteristics

These statements arebased on practicalexperiences havingbeen won over deca-des and on a greatvariety of researchescarried out at techni-cal universities and byrenowned SKC users.

Anti-stick-slip behaviourAnti-stick-slip behaviourAnti-stick-slip behaviourAnti-stick-slip behaviourAnti-stick-slip behaviour

Even under high area loads, SKCslideway coatings offer a jerk-freestarting and smooth movement. Mi-nimum feed (in the range of mic-rons) and a very precise positioningare achieved by SKC-coated guide-ways, if an adequate drive, an ade-quate lubricating system and lubri-cant are used. This behaviour is ob-tained by the most salient of the po-sitive properties: the static friction fois smaller than the kinetic friction fv.

RRRRResistance to wearesistance to wearesistance to wearesistance to wearesistance to wear

The excellent properties of the SKCcompounds minimize wear of theslideway coating and the opposingguide surface. The readiness withwhich it embeds foreign bodies of-fers an additional and an effectiveprotection against scoring.

FFFFForming exactly to size andorming exactly to size andorming exactly to size andorming exactly to size andorming exactly to size andat low costat low costat low costat low costat low cost

SKC slideway coatings harden with-out any technically relevant shrin-kage, therefore the accuracy of thesurface to be formed is truly repro-duced on the SKC antifriction coa-ting. So, in most cases, a subse-quent and costly mechanical machi-ning is avoided, as the lubricationgrooves can be formed simultane-ously.

Dimensional stabilityDimensional stabilityDimensional stabilityDimensional stabilityDimensional stability

In contrast to many other synthetics,SKC slideway coatings are scarcelyeffected by deformation under load,in particular, under the influence ofheat (see tech. data).

DampingDampingDampingDampingDamping

The high accuracy of SKC-coatedguideways and the technologicalproperties of the slideway coatingallow the minimum of guiding tole-rance. The excellent damping beha-viour of slideways, e. g. comparedto roller-type guideways is thereforeremarkably improved. By the incre-asing frictional function in theboundary area, and into the direc-tion of motion, damping is given.The dynamic rigidity of themachines is improved.

Safety and reliabilitySafety and reliabilitySafety and reliabilitySafety and reliabilitySafety and reliability

The excellent properties underemergency conditions of the SKCslideway coatings avoid high wear,even under unfavourable conditions,such as inadequate lubrication. SKC-coated guideways do not “seize”.

Excellent adhesionExcellent adhesionExcellent adhesionExcellent adhesionExcellent adhesion

SKC slideway coatings adhere excel-lently on cleaned metallic surfaces,and also on existing SKC layers.Correction of damage or of machi-ning errors on SKC slideway coa-tings can be done easily. Even oncomponents of machines made ofsolventless polymerisable resinouscompound or cement-bound con-crete, SKC slideway coatings haveoutstanding adhesion characteristics.

Chemical PChemical PChemical PChemical PChemical Propertiesropertiesropertiesropertiesroperties

SKC compounds are resistant towater, sea water, mineral and syn-thetic oils, weak acids and caustics,gasoline and alcohol.They are not resistant to acetone,benzene, methanole, phenoles andcresoles (under permanent load),and to solvents (under a longer-la-sting influence).Any particulars as far as chemical re-sistance is concerned have to beseen under a certain reservation, asparameters like temperature, timeof action and state of hardening ofthe compounds are of importance.If there is any doubt, we recom-mend to provide specific storingtests.In cases of long-term influence un-der watery solvents, as well as bydepositing of oxydes, fission andmetabolic products (especially fromwater-mixable coolants/lubricants)dimensional variations of some mic-rons might occur.Upon request, we are well prepa-red to send you detailed and rele-vant information.

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Slideway Coatings • Technical Data

Technical DataSlideway Coatings

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SKC 3SKC 3SKC 3SKC 3SKC 3 SKC 400 ELFSKC 400 ELFSKC 400 ELFSKC 400 ELFSKC 400 ELF SKC 60SKC 60SKC 60SKC 60SKC 60 SKC 62SKC 62SKC 62SKC 62SKC 62

Specific weight [kg/dm³] 1.8 1.4 1.6 1.5

Mixing ratio resin : hardener 100:7.3 100:10.3 100:9.5 100:9.9

Safe surface load, dynamic [N/mm²] 15 2 5 5

Safe surface load, static [N/mm²] 100 10 50 50

Modulus of elasticity [N/mm²] 6190 2920 4850 4770

Hardness [Shore D] 83,5 n. b. 82 80

Coefficient of friction f0 as per type of oil < 0.10 < 0.06 < 0.08 < 0.08

Maximum operating temperature [°C] 80 (short-time100)

Heat-exchange coefficient [K-1] ~ 30 x 10-6

Heat conductance [W/mK] 0.5-0.8

Volume resistance [Ωcm] ~ 1 x 1017

Dielectric coefficient ~ 4

Dielectric strength [kV] ~ 10 (at 2.5-3 mm thickness of layer)

Minimum thickness of layer, approx. [mm] 1.5 1.5 2.0 1.5

Shrinkage during hardening [%] < 0.1

Quantity required volume [cm³] x Fm equals quantity [g]

Factor Fm * spatula method 3 3 - -

Factor Fm * injection/pouring method - 2 2 2

Time of application at 20 °C, approx. [min] ** 45 45 30 30

Time before separation at 20 °C [h] 12-16 18-22 12-16 12-16

Hardening time at 20 °C [h] 16-22 22-30 16-22 16-22

Storing life at approx. 20 °C, dry conditions 12 month

Available ready-to-use packings see order details

* The factor Fm contains the specific weight and a safety factor.** The time of application is strongly depending on the ambient temperature and the mixing process. Even in cases of big acclomerations of

the compound (e. g. in cartridge or can) the time of application can become widely shorter.

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Slideway Coatings • Technical Data

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SKC 63SKC 63SKC 63SKC 63SKC 63 SKC 63 RSKC 63 RSKC 63 RSKC 63 RSKC 63 R SKC 90SKC 90SKC 90SKC 90SKC 90 SKC 600SKC 600SKC 600SKC 600SKC 600



Safe surface load, dynamic [N/mm²] 5 5 4 2



Hardness [Shore D] 82 85 80 n. b.

Coefficient of friction f0 as per type of oil < 0.08

Maximum operating temperature [°C] 80 (short-time 100)




Dielectric constant ~ 4

Dielectric strength [kV] 10 (at 2.5-3 mm thickness of layer)

Minimum thickness of layer, approx. [mm] 1.5 1.0 2.0 1,5


Quantity required volume [cm³] x Fm equals quantity [g]

Factor Fm * spatula method 3 3 - 3

Factor Fm * injection/pouring method - - 2 2


Time before separation at 20 °C [h] 12-16 1,5 18-22 18-22

Hardening time at 20 °C [h] 16-22 4 22-30 22-30

Storing life at approx. 20 °C, dry conditions 12 month 12 month 9 month 12 month


The above details are to our best knowledge. We cannot accept responsibility in individual cases as the way in which the mate-rial is prepared and handled is outside our control. Due to the manifold conditions of production, operating and application,every user has to check by himself the suitability of the product for his specific purpose of application. The specifications given inthis brochure are not to be understood as an assured property.

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Slideway Coatings • Diagrams

Diagrams

Coefficients of friction: Standard series oils VG 220Coefficients of friction: Standard series oils VG 220Coefficients of friction: Standard series oils VG 220Coefficients of friction: Standard series oils VG 220Coefficients of friction: Standard series oils VG 220 Sequence of hardening of various SKSequence of hardening of various SKSequence of hardening of various SKSequence of hardening of various SKSequence of hardening of various SKC coatingsC coatingsC coatingsC coatingsC coatings

Aging SKAging SKAging SKAging SKAging SKC 60 - Development TgC 60 - Development TgC 60 - Development TgC 60 - Development TgC 60 - Development Tg

Behaviour of deformationBehaviour of deformationBehaviour of deformationBehaviour of deformationBehaviour of deformationWWWWWarming-up wear of various materialsarming-up wear of various materialsarming-up wear of various materialsarming-up wear of various materialsarming-up wear of various materials(extract from a test of a renowned German machine-tool manufacturer)

0,5 1 1,5 2 2,50

1

2

3

4

5

6

7

compressive load per unit area [N/mm²] compressive load per unit area [N/mm²] compressive load per unit area [N/mm²] compressive load per unit area [N/mm²] compressive load per unit area [N/mm²]

Def

orm

atio

n [µ

m]

Def

orm

atio

n [µ

m]

Def

orm

atio

n [µ

m]

Def

orm

atio

n [µ

m]

Def

orm

atio

n [µ

m]

PTFE, bronze-filledPTFE, bronze-filledPTFE, bronze-filledPTFE, bronze-filledPTFE, bronze-filled(circumferential-ground)(circumferential-ground)(circumferential-ground)(circumferential-ground)(circumferential-ground)

SKSKSKSKSKCCCCC(formed to size)(formed to size)(formed to size)(formed to size)(formed to size)

grey cast iron 25grey cast iron 25grey cast iron 25grey cast iron 25grey cast iron 25(face-milled)(face-milled)(face-milled)(face-milled)(face-milled)

grey cast iron 25grey cast iron 25grey cast iron 25grey cast iron 25grey cast iron 25(circumferential-ground)(circumferential-ground)(circumferential-ground)(circumferential-ground)(circumferential-ground)

PTFEPTFEPTFEPTFEPTFE(circumferential-(circumferential-(circumferential-(circumferential-(circumferential-

ground)ground)ground)ground)ground)

0 2 4 6 8 10 12 14 16 18 20 22 240

10

20

30

40

50

60

70

80

90

100

time [h] time [h] time [h] time [h] time [h]

hard

enin

g [%

] ha

rden

ing

[%]

hard

enin

g [%

] ha

rden

ing

[%]

hard

enin

g [%

]

SKSKSKSKSKC 63 RC 63 RC 63 RC 63 RC 63 R

SKSKSKSKSKC 60C 60C 60C 60C 60SKSKSKSKSKC 3C 3C 3C 3C 3SKSKSKSKSKC 400 ELFC 400 ELFC 400 ELFC 400 ELFC 400 ELF

SKSKSKSKSKC 90C 90C 90C 90C 90

0 1 2 3 4 5 6 7 820

40

60

80

100

time [h] time [h] time [h] time [h] time [h]

glas

s tr

ansit

ion

poin

t Tg

[°C

] gl

ass

tran

sitio

n po

int T

g [°

C]

glas

s tr

ansit

ion

poin

t Tg

[°C

] gl

ass

tran

sitio

n po

int T

g [°

C]

glas

s tr

ansit

ion

poin

t Tg

[°C

]

80 ° C80 ° C80 ° C80 ° C80 ° C

60 ° C60 ° C60 ° C60 ° C60 ° C

40 ° C40 ° C40 ° C40 ° C40 ° C

room temperatureroom temperatureroom temperatureroom temperatureroom temperature

1

2

3

4

5

6

7

8

9

10

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12

0 0,05 0,1 0,15 0,2 0,25 0,3

coefficient of friction fcoefficient of friction fcoefficient of friction fcoefficient of friction fcoefficient of friction f00000

oils

oils

oils

oils

oils

grey cast iron-grey cast irongrey cast iron-grey cast irongrey cast iron-grey cast irongrey cast iron-grey cast irongrey cast iron-grey cast iron

SKSKSKSKSKC 3-grey cast ironC 3-grey cast ironC 3-grey cast ironC 3-grey cast ironC 3-grey cast iron

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0 5 10 15 20 250

5

10

15

route [km] route [km] route [km] route [km] route [km]

wea

r [µ

m]

wea

r [µ

m]

wea

r [µ

m]

wea

r [µ

m]

wea

r [µ

m]

PTFE, bronze-filledPTFE, bronze-filledPTFE, bronze-filledPTFE, bronze-filledPTFE, bronze-filled(scraped)(scraped)(scraped)(scraped)(scraped)

SKSKSKSKSKC 63C 63C 63C 63C 63(scraped)(scraped)(scraped)(scraped)(scraped)

SKSKSKSKSKC 3C 3C 3C 3C 3(scraped)(scraped)(scraped)(scraped)(scraped)

countercountercountercountercounter-guideway: grey cast iron 25 (face milled)-guideway: grey cast iron 25 (face milled)-guideway: grey cast iron 25 (face milled)-guideway: grey cast iron 25 (face milled)-guideway: grey cast iron 25 (face milled)sliding speed v = 30 m/minsliding speed v = 30 m/minsliding speed v = 30 m/minsliding speed v = 30 m/minsliding speed v = 30 m/minsurface load p = 50 N/cm²surface load p = 50 N/cm²surface load p = 50 N/cm²surface load p = 50 N/cm²surface load p = 50 N/cm²lubrication: Shell C22, unpressurizedlubrication: Shell C22, unpressurizedlubrication: Shell C22, unpressurizedlubrication: Shell C22, unpressurizedlubrication: Shell C22, unpressurized

countercountercountercountercounter-guideway: grey cast iron 25-guideway: grey cast iron 25-guideway: grey cast iron 25-guideway: grey cast iron 25-guideway: grey cast iron 25(circumferential grinding)(circumferential grinding)(circumferential grinding)(circumferential grinding)(circumferential grinding)

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Slideway Coatings • Guidelines for Application

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Guidelines for ApplicationSlideway Coatings

PPPPPreparationreparationreparationreparationreparation

Roughening of the surface to becoatedTo improve adhesion, the guide sur-face to be coated has to be roughe-ned. The peak-to-valley heightshould be about 0.5 mm(Rt=500 µm). Roughening can beprovided by rough-planing, rough-milling, by cutter or by bore hole,i.e. by turning a thread. Sandbla-sting, using hard and sharp grains(blasting medium: a high-furnaceslag G 77, grain 0.6-1.2 mm) offersan especially good adhesion surface.In case of all these processes, carehas to be taken, that the surface willnot be compressed, but will becracked.

Cleaning of the surface to be coatedThe components to be coated haveto be cleaned thoroughly. For pre-cleaning various cleansing agents canbe used.We are at your service to provideyou with information on a suitablecleansing agent.The surfaces to be coated have tobe free from oil, grease, dust, rust,scale and protective paint. In case ofa mineral cast, it is necessary to re-move the layer of separating wax ortreatments. For the final cleaning be-fore coating, preferably acetone

should be used. Care has to be ta-ken when compressed air is usedfor dry-blowing of the adhesion sur-faces, because it often contains oilwhich might affect adhesion.

Counter guideway and forming-to-size surfaceSKC coatings can be formed to sizefrom all kinds of counter guideways,from devices (masters), from thecounter surface, or - for instance -from gauge plates or templates.When forming, the roughness of thecounter guideway should not ex-ceed Ra = 2.5 µm. The countersurfaces can be ground, fine-milled,broad-smoothened planed or fine-turned.

Releasing compoundsThe surfaces from which forming-to-size is provided, are to be trea-ted with a releasing compound. De-pending on the specific case, variousreleasing compounds are available.Each to type, they are applied with acleaning rag or a brush or they aresprayed on. After application and fora short time, the releasing com-pound layer is left to dry and thencarefully polished with a soft cloth.Please, see chapter ‘Accessories’ fora description of the various releasingcompounds.Before coating, all areas on whichcompound might escape during theforming process and where it has tobe removed after hardening, arealso to be treated with a releasingcompound.About 1 kg of releasing compoundis required for the application of 10kg of slideway coating.

Formable oil groovesThe forming-to-size technique al-lows a simultaneous moulding of theoil grooves. The pre-fabricatedshapes of the oil grooves are spray-ed with an adhesive spray and adhe-red on the forming surface. It is im-

portant to spray only a thin layer ofthe adhesive and to let it ventilateafter spraying. For precise informati-on, please, see the instructions ofuse on the adhesive spray. Theshapes of the oil grooves have to bepressed on tightly and then to betreated with a releasing compound.After hardening of the compoundthe shapes of the oil grooves can beremoved from the compound. Theoil groove itself can be lifted at itsend by means of a pointed toolingand be withdrawn by hand.All application techniques allow aforming-to-size of the oil grooves.For shapes and dimensions, please,see chapter ‘Accessories’.

Calculation of quantityFor application by spatula, the volu-me of the coating groove - in cm3 -is multiplied by factor Fm. This givesthe required quantity of the com-pound in grammes. Factor Fm allowsfor the specific weight as well as asafety margin and depends on thecompound to be used and the ap-plication. The applicable value canbe seen from the technical data.

Removal of the coated componentAfter hardening, the component canbe lifted off. In case of very bigworkpieces, additional devicesshould be used to relieve the crane,as e.g. pressure screws or a winch.Before lifting off, and if possible, thecomponent should be loosened inthe direction of motion of the guide-way.

Example for roughening of the surface to becoated by planing (lh.) and milling (rh.)

Example of calculation for injection method

material: SKC 60 (Fm=2):guideway: length 800 mm, width 50 mm,

thickness of layer 2,5 mm

80 cm x 5 cm x 0,25 cm x 2 g/cm3 = 200 g

TTTTTime of applica-ime of applica-ime of applica-ime of applica-ime of applica-tion, time beforetion, time beforetion, time beforetion, time beforetion, time beforeseparat ion andseparat ion andseparat ion andseparat ion andseparat ion andhardening time:hardening time:hardening time:hardening time:hardening time:see techn ica lsee techn ica lsee techn ica lsee techn ica lsee techn ica ldata.data.data.data.data.

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Retouching workAt the front, the edges of squeezedout material have to be removedusing either a portable grinding ma-chine or a coarse linen cloth. Lateraledges of squeezed out material areto be traced and to be cut off with aflat chisel.

Flaws, pits or chipped partsof the coating can easily berepaired. In this area, the

slideway coating will be roughened,decreased and the flaw to be filledin with SKC coating. For quick re-pairs, SKC 63 R is available. Flawshaving been repaired with this com-pound can be treated already after3-4 hours. If necessary, all the SKCslideway coatings can be machinedmechanically (see also the table withthe empirical values).For all the mechanical processes,care has to be taken that no heatingof the surface of the coating will oc-cur.Bore holes for lubricants are to beopened by boring from the coatingside to prevent an escape of thecoating.

Application by spatulaApplication by spatulaApplication by spatulaApplication by spatulaApplication by spatula

PositioningThe workpiece to be coated is posi-tioned at its moulding surface onsetting screws, feelers, stops, and bymeans of clock gauges or water le-vels so that is dimensionally alignedto the surfaces of reference. As theworkpiece has to be removed in or-der to apply the SKC slideway coa-ting, the positioning points have tobe marked.

MixingSKC slideway coatings are availablein various ready-for-use packs con-taining epoxy resin and hardenerprecisely proportioned to eachother in weight. So, an additionalweighing is not required and shouldbe avoided. For mixing, the epoxy-resin compound has to be loosenedwith a spatula from the tin wall andthe tin base, the hardener is to bepoured in and to be mixed in byhand. Subsequently, at about 400rpm, the two components are to bemixed well with the SKC stirrer

which has to be chucked in a drill-or in an upright drilling machine. Astirring time of 3 minutes has to beobserved. Take care that the stirrerwill not grind at the tin base, asotherwise, the compound will heatup.After mixing, the SKC compoundsapplicable by spatula have to be ta-ken out of the tin immediately andto be spread out on a sheet (see ill.below). By spreading out the com-pound, a certain part of the reactionheat is released, thus increasing thepot life; any air bubbles stirred in arecracked. If the material remains inthe tin, a heat accumulation is crea-ted, which may lead to a short-termhardening. For a quantity of 0.5 kgsof SKC compound applicable byspatula, a sheet measuring about500 x 500 mm should be used.

Application time and temperatureThe application time is dependingon the material to be used. Theright values are shown on the table‘Technical Data’. SKC coatings requi-re an ambient temperature of atleast 18 °C. For the coating process,the workpieces, too, must have thistemperature; if necessary, they areto be heated by radiator.

Application of the coatingBy means of a spatula, the materialis removed from the sheet and app-lied in several thin layers, where thefirst layer has to be pressed carefullyinto the roughening. At the end, thematerial has to be applied somew-hat roof-shaped, so that the com-pound is displaced from the intothe outside without any air poc-ketswhen placed against the counter-surface.

!

MethodMethodMethodMethodMethod Data of applicationData of applicationData of applicationData of applicationData of application

Milling cutter head with 4 cutters, PKD (poly-crystaline diamond)cutting speed v ....................... about 130 m/minfeed per tooth fz ..................... 0.08-0.1 mm/cutting toothcutting depth a ....................... 0.1-0.3 mmchip angle γ ............................ axially positive, radially negativefeed speed u .......................... 150-200 mm/minrpm of workpiece n ............... about 500 min-1

Attention: the ‘u’ and ‘n’ values only apply as informative values for acutter diameter of 80 mm with 4 cutters!

feed speed u = fz x z x nfz: feed per cutter in mm/cutting toothz: number of cuttersn: rpm of workpiece in min-1

Grinding silica-carbide wheel36-46 G 8, wet grinding‘Stellram’ wheel42 A 46 H 16 V 24 (A = 50 % natural und 50 % crystal corundum)wet grinding, v = 25-30 m/s‘Naxos’ wheelEKD 36 / 02G / H7 KE 100, wet grinding

Honing type of device ........................ portable honing device AN 815honing oil ............................... standard honing oilhoning stone .......................... 4 stones without guiding

W 47 - J 63 - 772XAttention: After honing, the bore holes have to be cleaned!

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Forming-to-size of the matingcomponentThe workpiece is positioned on themoulding point and lowered to thealigning points (setting screws etc.)which had been marked before. Ex-cess material is squeezed off. Anycorrections within the range ofsome 1/100 mm can still be carriedout into direction of the coating. Inno case shall the mating componentbe lifted, as this would draw in airpockets. Light workpieces are in ad-dition to be loaded with a weight orto be clamped with retainer gibs orscrew clamps. When the aligningpoints are reached, the workpiece isunloaded or respectively unclam-ped.

Injection methodInjection methodInjection methodInjection methodInjection method

PreparationFor an application by injection, thelayer thickness depends on the ma-terial to be used and should beabout 2 mm (please see technicaldata for the minimum layer thick-nesses). Depending on the presssystem which is used on workpieceshaving a coating length of up toabout 1000 mm, the injection borehas to be provided in the centre,thus enabling a uniform distributionof the compound into both direc-tions of the coating gap. In case oflonger pieces, several injection bo-res are required being at a distanceof about 500 mm to each other. Fora vertically arranged coating gap, theinjection bore has to be arranged aslow down as possible.

SealingDepending on the possibilities ofdesign or of the techniques of pro-duction, sealing is carried out bymetallic edges or by foam-rubberstrips.Metallic edges are used as a directsupport, and should be pre-ma-chined exactly, according to the di-mensional requirements. Beforecoating, adhesive-tape strips (e.g.linen-reinforced adhesive tape0.3 mm thick) can be adhered onthose edges free. A subsequent un-dercutting of the compound is notrequired.

When sealing with foam rubber, anoptimal sealing effect is obtainedwhen the profiles are compressedto about 50% of their original thick-ness.

PositioningThe workpiece, cleaned and prepa-red for coating is placed on themoulding surface, which has beentreated with the releasing com-pound, aligned by means of settingscrews or similar devices, and fixed.During injection, the aligned com-ponent has to be kept in position,by means of retainer gibs, screw-clamps, etc. , so that a displacementcaused by the injection pressure, isavoided. In a range of a few 1/100mm a re-adjustment into directionof the coating can be done after in-jection.

MixingSKC slideway coatings are availablein various ready-for-use packs con-taining epoxy resin and hardenerprecisely proportioned to eachother in weight. Therefore theseready-for-use packs should be usedcompletely.For mixing, the epoxy-resin com-pound has to be loosened with aspatula from the tin wall and the tinbase. In case of the low-viscouscompounds SKC 62 and SKC 90,the fillers deposit after a certainstock time and - before adding thehardener - they have to be stirredup thoroughly. For this purpose, theresidue has to be loosened from thetin base and the resin compoundstirred thoroughly until the com-pound is clod-free. Before furtheruse, the resin compound has tocool down to ambient temperature.Then, the hardener is added andcarefully poured in and - for 1 minu-te - mixed by hand intensively withthe resin. Final mixing at about 400rpm with the SKC stirrer which hasto be chucked in a drill- or in an up-right drilling machine. A stirring timeof 3 minutes has to be observed. Aninsufficient mixing of the two com-ponents might cause the risk of softspots.

Systems of presses(see also ‘Accessories’)The coating has to be poured in athin stream onto the wall of thecartridge which should be held in aninclined position. Press the pistoninto the filled cartridge and ventilate.For ventilation, the cartridge has ei-ther to be deformed slightly by de-pressing the piston or providingventilation by adding a thin wire du-ring inserting the piston. Afterwards,the wire has to be removed.Only for cartridges SK500, KK1000:The tip of the thread nipple is to becut off and the nozzle to be reducedto the diameter of injection bore(see chart on right side). Then, thediaphragm inside of the cartridge ispierced from the front through thenipple. Attach nozzle as required.Insert the cartridge into the pressand close the press with the sealingcap. Hold the press vertically up-wards and ventilate it until a smallquantity of compound escapes. Ac-cording to the press system, thecartridge nozzle is to be pressed orscrewed into the the injection boreprovided. Press the coating for jointfaces slowly and continuously intothe gap, until it escapes through theventilation bore at the farthestpoints.

Coating of long workpieces with se-veral injection boresThe coating process is started fromthe central injection bore. Pressingin has to be continued until thecompound escapes from the adja-cent injection bores. Then, removethe press and seal the bore with athread plug. Now, sequence of coa-ting is continued from the boreswhere the compound has escaped.The process is repeated, until thecomplete guideway is filled. Coatingof longer workpieces should be car-ried out simultaneously with twopresses.

Injection borenozzle to be shor-

tened by

Ø 6 0 mmØ 8 12 mmØ 10 25 mmM 8 5 mmM 10 16 mmR ¼“ 36 mm

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PPPPPouring methodouring methodouring methodouring methodouring method

The preparations are correspondingto those of the injection method. Asfilling of the compound into the coa-ting gap is done almost without anypressure, pourable slideway coa-tings can be poured in directly offthe can. A thin jet makes air pocketscrack and escape.In other cases, a filling of the gap isfunctionally made via a hose (PVCtransparent, Øinside 12 x 2 mm).This hose is plugged onto a shortpiece of a pipe having an outsidediameter of 12 mm. The cartridgetogether with the nozzle is then in-serted into the free end of the hose;the cartridge itself will now be filleddirectly off the can. When the com-pound escapes at the control bores,the latter will be closed. As a materi-al reservoir, the filling hose remainsconnected until separation. In caseof horizontal gaps, the filling bore isto be arranged centrally and for ver-tical gaps at the lower end.

Filling of a gap via a hose (pouring method)


17

The repairing compound SKC 400 R is usedon the same way as SKC 63 R. The technicaldata are similar to those of SKC 400 ELF.Even with the blue compound SKC 400 ELF,the repairing compound SKC 400 R allows arepair inconspicuous in colour.

Parts by weight for the consumption of smaller quantities of the compounds

Splitting of resin and hardener should be done only by means of a balancehaving an accuracy of reading of 0.1 g!

resin [g] hardener [g]SKC 63 R SKC 400 R

20 1.7 1.830 2.5 2.640 3.3 3.550 4.2 4.4

Repair CoatingsSKC 63 R / SKC 400 R

Information • Repair Coatings

Coatings, applicable by spatula for the repair of blowCoatings, applicable by spatula for the repair of blowCoatings, applicable by spatula for the repair of blowCoatings, applicable by spatula for the repair of blowCoatings, applicable by spatula for the repair of blow-holes,-holes,-holes,-holes,-holes,for instance of inclusions, open spaces or scores.for instance of inclusions, open spaces or scores.for instance of inclusions, open spaces or scores.for instance of inclusions, open spaces or scores.for instance of inclusions, open spaces or scores.

The coatings SKC 63 R andSKC 400 R, applicable by spatula,have been developed for the repairof blow-holes, for instance of inclusi-ons, open spaces or scores.

Before repairing worn-out guideways,the scores have to be milled or grounddown to the exit (‘zero transition’)about 1 mm deep.Using, for instance, a portable drillingmachine with a grinding point, inclu-sions have to be ground or milled so,that the created blow-hole can befilled easily and is free from contami-nations.

In order to reduce re-machining andto press the coating into the scores orinto the inclusions, a guide-bar, groundand pre-treated with a releasing com-pound should be placed or chuckedonto the coated area.Alternatively, or on uneven surfaces,the repaired areas can me masked offwith a smooth adhesive tape, afterthey had been filled out with therepair compound.

The repair compound combines its-elf homogeneously with all the SKCcoatings and adheres excellently onall cleaned and roughened surfaces(e. g. metal, mineral casting etc.).

The hardening time does stronglydepend on the temperature conditi-ons. At room temperatures of 20 °C,the repaired surfaces can be re-scraped 2 hours after the compoundhas been applied.

After hardening, the repaired areascan be treated mechanically (turning,milling, drilling, grinding). In order toequalize small repaired blow-holes,in cases where the surface is exposedto high demands after hardening, afine abrasive cloth (grain size 220)used with machine oil has provensuccess.

If the blow-holes repaired by thatmethod have to be absolutely freefrom inclusions (bearing surface ofsealing rings, general sealing function),then, afetr 8 hours, the surfaces are tobe scanned under appropriate pres-sure with a pointed but not sharpobject, as e. g. a rounded scriber.This method discovers the blow-ho-les sitting under the surface whichthen can be repaired as describedabove.

To be removed!

blow-holes/inclusions/scores

masking bar

SKSKSKSKSKCCCCCSKSKSKSKSKCCCCC

Diagram for the appli-cation of SKC repaircompounds.

The repairing compound SKC 400 R is usedon the same way as SKC 63 R. The technicaldata are similar to those of SKC 400 ELF.Even with the blue compound SKC 400 ELF,the repairing compound SKC 400 R allows arepair inconspicuous in colour.

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Slideway Coatings • Examples of Application

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Examples of Application

ill. 1:Coated hydraulic piston for the table drive of a gui-deway grinding machine (diameter of piston 230mm)

ill. 2:Sleeve guiding

ill. 3:Worm rack, single-thrust bearing

To be removed!

blow-holes/inclusions/scores

masking bar

SKSKSKSKSKCCCCCSKSKSKSKSKCCCCC

ill. 6 and 7:Repair of scores in a metallic guideway - applying repair coating SKC 63 R

ill. 5:compressor screw

ill. 4:Coated slideways and worm rack. Table of a gantry milling machine.

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Slideway coatings • Examples of Application


ill. 10:half-shell of a laser gun, diam. 550 mm, 1200 mmlong, cylindricity < 15 µm, vacuum channels di-rectly moulded (see also: accessories, groove foil)

ill. 8:Slide of a grinding machine, hydrostatic guiding system, guiding dimensions6000 x 230 mm, direct forming-to-size of hydrostatic pockets

ill. 9:Polymeric concrete-component for demonstrationpurposes with directly moulded V-guides

ill. 11:Hydrostatic bearing ring of a crank-stroke millingmachine with moulded pockets

ill. 12:Coated gibs with directly moulded lubricationgrooves

ill. 13:V-guides of the table of a milling machineFor the separation of the counter guiding of bigcomponents additional means are used (e. g. awinch) to relieve the crane.

ill. 14:Guiding system of a slide

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Slideway coatings • Examples of Application

Example of ApplicationCoating of the Guideways of a Horizontal MillingMachine - Spatula Method

1) This guideway system of the bot-tom slide is consisting of two hori-zontal flat guideways ‘a’, a verticalflat guideway ‘b’, a vertical guidewaywith V-ledge ‘c’ and two retainergibs for cover strips ‘d’ (ill.1).

2) Pre-machining of the surfaces tobe coated is provided by rough-pla-ning or rough-milling to obtain thesurface shown by ill. 2. By rough-milling, a similar surface shall analo-gously be created by circular scores.The theoretical layer thickness overthe score tips shall be at least 1 mm.All counter surfaces used for the for-ming-to-size, which have to be finis-hed and to be optimally aligned, aretreated with a separator and smoo-thened with a soft rag.It is also recommendable to treatthose areas of the free surfaces withthe separator on which - duringmoulding - the compound may es-cape, and wherever possible, toprotect them with an adhesive tape.The preparations of a coating pro-cess do also include determinationof a measuring and aligning methodto produce the layer thickness andthe necessary position of the bot-tom slide, relative to the guidewayof the slide and to the spindle axis.Suitable devices and gauges have tobe at immediate disposal, as duringthe moulding process, the timeavailable to align the bottom slide islimited.

3) After applying by spatula theslideway coating onto the surfaces aand b, the bottom slide will be tur-ned, will be laid on the bottom gui-deways, slowly and as much as pos-sible parallel, and - following thewater levels - it will be alignedexactly into longitudinal and trans-versal direction, e.g. by means ofsetting screws in the thread boresfor the cover gibs (ill. 3). If necessa-

ry, surface b has to be coated in aseparate operation.

4) To verify the rectangular positionof the bottom-slide guiding to theaxis of the spindle, a device asshown by ill. 4 is used. The positionhas to be corrected by means oftwo wedges at the front verticalguideway between bed and bottomslide.Take care, when removing the coa-ting escaped both at the long and atthe front sides. Do not knock it off.In case of a mechanical re-machiningor when correcting by scraping,please follow the application guideli-nes. Turn the bottom slide and posi-tion it onto the bed and verify it asdescribed under 3) and 4).

ill. 1

ill. 2

ill. 3

ill. 4

aa bd d

Apply the slideway coating by spatu-la on the cover gibs d and mountthem.Do not forget the separator on theretainer gibs! After hardening of thecompound, dismantle the cover gibsand machine them as described.Mill in the lubrication grooves and -if required - open by boring anylube-oil bores which might havebeen closed when applying the coa-ting.

Forming-to-size of the guideway ofthe transversal slide or of the spind-le-slide guideway will be carried outanalogously, with reference to thegeometrical assignable values.

22

Slideway Coatings • Examples of Application

Example of ApplicationCoating of the Guideways of the Bottom Slideof a Turning Lathe - Spatula Method

ill. 1

b

ill. 3

ill. 2

ill. 4

ill. 5

c da

1) This guideway system of the bot-tom slide is consisting of a V-guidesystem ‘a’, a flat guideway ‘b’ andtwo retainer gibs ‘c’, ‘d’ (ill.1).

2) Pre-machining of the surfaces tobe coated is provided by rough-pla-ning or rough-milling to obtain thesurface shown by ill. 2. By rough-milling, a similar surface shall analo-gously be created by circular scores.The theoretical layer thickness overthe score tips shall be at least 1 mm.All counter surfaces used for the for-ming-to-size, which have to be finis-hed and to be optimally aligned, aretreated with a separator and smoo-thened with a soft rag. It is also re-commendable to treat those areasof the free surfaces with the separa-tor on which - during moulding -the compound may escape, andwherever possible, to protect themwith an adhesive tape.The preparations of a coating pro-cess do also include determinationof a measuring and aligning methodto produce the layer thickness andthe necessary position of the planeslide relative to the guideway of thebed and to the spindle axis. Suitabledevices and gauges have to be atimmediate disposal, as during themoulding process, the time availableto align the bottom slide is limited.

3) After applying by spatula the anti-friction coating onto the surfaces aand b, the bottom slide will be tur-ned, will be laid on the bottomguideways, slowly and as much aspossible parallel, and - following thewater levels - it will be alignedexactly into longitudinal and trans-versal direction, e.g. by means ofsetting screws in the thread boresfor the cover gibs (ill. 3).

4) To verify the rectangular positionof the plane-slide guiding to the axisof the spindle, a device as shown isused. The position has to be correc-ted by means of two wedges at thefront vertical guideway betweenbed and bottom slide.

After about 24 hours, the bottomslide has to be lifted off and the sur-faces a) and b) to be scraped with 5-8 mm long strokes.

Take care, when removing the coa-ting escaped both at the long and atthe front sides. Do not knock it off.

In case of a mechanical machining orwhen correcting by scraping, pleasefollow the application guidelines.

Turn the bottom slide and position itonto the bed and verify it as descri-bed under 3) and 4).

5) Apply the slideway coating byspatula on the cover gibs c) and d)and mount them.Do not forget the separator on theretainer gibs! After hardening of thecompound, dismantle the cover gibsand re-machine them as described.Mill-in the lubrication grooves and -if required - open by boring anylube-oil bores which might havebeen closed when applying the coa-ting.Forming-to-size of the guideways ofthe longitudinal slide or of the tail-stock slide will be carried out analo-gously, with reference to the geo-metrical assignable values.

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Coatings for Joint Faces

SKC-coatings for joint facesare used to adapt and to fitmachine components, ensu-ring the highest demands ofaccuracy. They are also usedas high load capacity adhesi-ves.

The moulding technique al-lows corrections of machi-ning tolerances within mi-crons. Even if the layeredthickness differs, accuracy tomicrons is still obtained.

SKC coatings for joint facesprovide a very high adhesionforce and harden withoutany technically relevantshrinkage.

Coating for Joint FCoating for Joint FCoating for Joint FCoating for Joint FCoating for Joint Faces SKaces SKaces SKaces SKaces SKC 57C 57C 57C 57C 57Standard type

Injection method

Coating for Joint FCoating for Joint FCoating for Joint FCoating for Joint FCoating for Joint Faces SKaces SKaces SKaces SKaces SKC 55C 55C 55C 55C 55shorter separation time

Injection method

Coating for Joint FCoating for Joint FCoating for Joint FCoating for Joint FCoating for Joint Faces SKaces SKaces SKaces SKaces SKC 53C 53C 53C 53C 53Standard type

Spatula method

Coating for Joint FCoating for Joint FCoating for Joint FCoating for Joint FCoating for Joint Faces SKaces SKaces SKaces SKaces SKC 58C 58C 58C 58C 58Low viscosity

Pouring method

Advantageshigh accuracy100 % support functionexcellent loadabsorptionhigh load carrying capa-city 100 N/mm²exact precision in theµm range without ex-pensive mechanicalpreparation or finishingwork

Examples of applicationAdaption of machining com-ponents in final geometry tothe machine baseFitting of welded compon-ents and welded construc-tionsFitting of hardened guide-way gibs, ensuring best sha-pe- and load-transmissionFitting of columns and bedto final geometryBearing surfaces for spindleunitsFitting of metal parts to con-crete (polymer concrete),ensuring best shape- andload-transmissionIsolation of live components

Coatings for Joint Faces

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SKC 53SKC 53SKC 53SKC 53SKC 53 SKC 55SKC 55SKC 55SKC 55SKC 55 SKC 57SKC 57SKC 57SKC 57SKC 57 SKC 58SKC 58SKC 58SKC 58SKC 58





Shearing restistance (St 37/blasted) [N/mm²] ~ 47

Tensile strength (St 37/milled) [N/mm²] ~ 55

Maximum operating temperature [°C] 80 (short time 100)




Dielectric coefficient ~ 4

Dielectric strength [kV] ~ 10 (at 2.5-3 mm thickness of layer)

Minimum thickness of layer, approx. [mm] 0.5 (run-out against zero possible)

Thickness of layer recommended [mm] 2 2 2 3


Quanitity required volume [cm³] x Fm equals quantity [g]

Factor Fm * 3 2 2 2


Time before separation at 20 °C [h] 12-16 8-12 12-16 18-22

Hardening time at 20 °C [h] 16-22 12-18 16-22 22-30

Storing life at approx. 20 °C, dry conditions 6 month


Coatings for Joint Faces • Technical Data

Technical DataCoatings for Joint Faces

The above details are to our best knowledge. We cannot accept responsibility in individual cases as the way in which the material is preparedand handled is outside our control. Due to the manifold conditions of production, operating and application, every user has to check by himselfthe suitability of the product for his specific purpose of application. The specifications given in this brochure are not to be understood as an as-sured property.

* The factor Fm contains the specific weight and a safety factor.** The time of application is strongly depending on the ambient temperature and the mixing process. Even in cases of big acclomerations of

the compound (e. g. in cartridge or can) the time of application can become widely shorter.

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Coatings for Joint Faces • Guidelines for application

PPPPPreparationreparationreparationreparationreparationBefore coating, the surfaces shouldbe cleaned carefully from grease andcontaminations. Films of oxide andmill scale have to be removed.If a separation of the components isenvisaged, one surface has to beroughened, e.g. by milling or sand-blasting. The counter surface has tobe finish-machined and to be trea-ted with an releasing compound.The dimensional accuracy is not af-fected, if the thin film of the relea-sing compound is re-polished with asoft cloth. In addition, a fixing in po-sition of the two components toeach other is required e.g. by cy-lindrical or tapered pins, so that theoriginal geometry of the forming po-sition is obtained when the com-ponents are separated and re-assembled.The injection bore hole - dependingon the system of cartridge pressused - has to be arranged in thecentre of coating surface. To obtaina better distribution of the com-pound, the exit bore (core hole)must have a wide counter-sink. Forventilation and control, bores ornotches have to be provided atpoints farthest from the injectionhole. When injecting the compoundthrough an angular bore, pocket ho-les should be avoided to preventany air pockets!

AligningAligningAligningAligningAligningThe required accuracy of the machi-ne parts to each other is obtainedby aligning with setting screws (ten-sion and clamping bolts) or withother auxiliary elements (setting we-dges). If injection or pouring tech-nique is applied, the surfaces to becoated have to be sealed, e.g. byfoam rubber, adhesive tape, sealingmastic etc.

MixingMixingMixingMixingMixingThe fillers could be subject of sepa-ration depending on the storage

time. Therefore they must be stir-red thoroughly before adding thehardener. The coating residue hasto be removed from the tin bottomand the resin compound to be mi-xed - clod-free - with the stirrer. Be-fore further application, the resincomponents have to cool down toambient temperature.Following this the hardener is ad-ded, carefully poured in and - forone minute - intensively mixed byhand into the resin compound. Bymeans of a stirrer, clamped in a drillor in an upright-drilling machine, thetwo components are ready mixed atabout 400 rpm. Here, a stirringtime of two minutes has to be ob-served. Insufficient mixing of the twocomponents will prevent properhardening. In the ready-to-use pa-ckings the mixing ratio of resin andhardener is exactly adapted to eachother, therefore these ready-to-usepackings should be used completely.

Spatula methodSpatula methodSpatula methodSpatula methodSpatula methodWith a metallic spatula, the com-pound is taken out from the tin andto be spread out on a sheet metal.From there the compound is takenwith a spatula and applied in severalthin layers, where the first layer willcarefully be pressed into the roug-hening. Finally, the compound has tobe applied somewhat roof-shaped,thus allowing its distribution on thecounter-surface without any air ho-les during moulding.

Injection methodInjection methodInjection methodInjection methodInjection methodThe coating for joint faces has to bepoured in a thin stream onto thewall of the cartridge which shouldbe held in inclined position. Pressthe piston into the filled cartridgeand ventilate. For ventilation, thecartridge has either to be deformedslightly by depressing the piston orby providing ventilation by adding athin wire during inserting the piston.Afterwards, the wire has to be re-

Guidelines for ApplicationCoatings for Joint Faces

moved again.Only for cartridge SK500, KK1000:The tip of the thread nipple is to becut off and the nozzle to be reducedto the diameter of of injection bore(see chart on left side). Then, thediaphragm inside of the cartridge ispushed from front through thenozzle.

Insert the cartridge into the pressand close the press with the sealingcap. Hold the press vertically up-wards and ventilate it until a smallquantity of compound escapes. Ac-cording to the press system, thecartridge nozzle is to be pressed orscrewed into the the injection boreprovided. Press the coating for jointfaces slowly and continuously intothe gap, until it escapes through theventilation bore at the farthestpoints. In case of horizontal gaps,the injection bore is to be arrangedcentrally and for vertical gaps at thelower end.

PPPPPouring methodouring methodouring methodouring methodouring methodInto wide (> 4mm) and easily ac-cessible gaps, pourable compondscan be poured in directly from thecan. A thin stream enables air bub-bles to tear off and to escape. Inother cases, a filling of the gap isfunctionally made via a hose (PVCtransparent, Øinside 12 x 2 mm).This hose is plugged onto a shortpiece of a pipe having an outsidediameter of 12 mm. The cartridgetogether with the nozzle is then in-serted into the free end of the hose;the cartridge itself will now be filleddirectly off the can. When the com-pound escapes at the control bores,the latter will be closed. As a mate-rial reservoir, the filling hose remainsconnected until separation. In caseof horizontal gaps, the filling bore isto be arranged centrally and for ver-tical gaps at the lower end.

TTTTTime of applicati-ime of applicati-ime of applicati-ime of applicati-ime of applicati-on, time beforeon, time beforeon, time beforeon, time beforeon, time beforeseparat ion andseparat ion andseparat ion andseparat ion andseparat ion andhardening time:hardening time:hardening time:hardening time:hardening time:see techn ica lsee techn ica lsee techn ica lsee techn ica lsee techn ica ldata.data.data.data.data.

Injection borenozzle to be shor-

tened by

Ø 6 0 mmØ 8 12 mmØ 10 25 mmM 8 5 mmM 10 16 mmR ¼“ 36 mm

!

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Coatings for Joint Faces • Examples of Application

ill. 1 and 2:Milling head withmoulded fitting sur-faces for the milling-spindle sleeve. After aso-called master-slee-ve has been inserted,aligned and fixed, thetwo bore walls and theaxial bearing surface ofthe sleeve are formedwith coating for jointfaces. This compoundis injected from outsidethrough bore holes.Advantages: big borediameters are preciselyobtained. Interchange-ability is guaranteed.


ill. 8:Pouring of screw holes

ill. 6:Moulding of a sleeve to create an index boreon a workpiece carrierAdvantage: unlimited interchangeability, as allpallets are moulded from a master-device

ill. 3:Locating key in hardened guideway gib moul-ded in form-fit design

ill. 5:Mount of a machine column to the base; al-ternatively an alignement can be carried outby separate tension bolts and pressure screws

ill. 4:Fitting of guideway gibs directly to the surfaceof mineral casting components

��

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��

��

��

��

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ill. 7:Lateral fixing of guideway gib and bogie bypouring the groove with a coating compoundfor joint faces

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27

Coatings for Joint Faces • Example of Application

The bearing seats of main spindlesrunning in antifriction bearings areexposed to high demands of accu-racy. Any deviations of dimensionsand of design are transported to thethin-wall bearing rings: alignment er-rors may affect the gravitational con-ditions inside of the bearings. Theconsequences - among others -could be insufficient running accura-cy and rigidity of the spindle, as wellas higher friction and faster wear ofthe bearings.

Often, the available machines arenot capable of achieving the neces-sary accuracy of the bearing seatsinside the spindle housing. The useof bearing bushes, which permitprecision machining without anyproblems, is solving this problem.These bushes have to be mountedinside the spindle housing in positio-nal accuracy, free from any deforma-tion and with a high rigidity.

Nowadays, liquid injected hard-setplastics can be used. The diameterof bores of the spindle housing arewidened, so that vis-à-vis the bea-ring bushes annular gaps are produ-ced. Plastic is then injected into the-se gaps, and after hard-setting, thisplastic provides a non-slip connec-tion between the spindle housingand the bearings bushes. Previously

the bearing bushes, together withthe bearings have been mounted onthe spindle, and by means of de-vices, this unit aligned and fixed tothe reference surfaces of the spindlehousing. A careful sealing of annulargap avoids plastic from escaping andfrom contaminating the bearing.

Compared to bearing bushes whichwould be mounted directly into thebores of the spindle housing, thisprocedure offers the following ad-vantages:

high accuracy of positioning thebearing bushes relative to eachother which can be achievedno transition of geometrical errorof the bores of the spindle hou-sing to the bearing bushesimproved cold flow from thebearings into the spindle housingreduced costs to provide thespindle housing bores and theouter surfaces of the cylinders ofthe bearing bushes.

In addition, it appears to be possible- if the plastic layers are suitably di-mensioned and probably in con-nection with a cooling of the bea-rings - to decrease the heat flow in-side the spindle housing and to re-duce deformation by heat.

The influence of the plastic layers onthe behaviour of the main spindleand its bearing has been investiga-ted. Main point of the first investiga-tion was to find out the static anddynamic rigidity, the thermical beha-viour of the bearings and the defor-mation by heat of the spindle hou-sing.

The plastics used for this purposewere filled epoxy resins from va-rious manufacturers. In comparisonwith other plastic, these resins arereaching a very high rigidity, offeringelasticity modula of more than

10.000 N/mm2 and they widelycomply with quite a few demands,such as:

liquid processibilitylow swelling and shrinkage duringhard-settinggood adhesion on metallic sur-facesgood resistance against water,oils and greasesno hygienic or environmentalrisks in hard-set condition

Among other applications, and sui-tably modified, is their use for ma-king frameworks (polymer concrete)and guideways (antifriction coating).

The researches have shown, thatnowadays, plastic materials areavailable with which bearing bushescan be embedded into the bores ofspindle housings without a consi-derable change in the behaviour ofthe spindle bearing system.

Consequently the engineering ad-vantages of this process can be ex-ploited for a wide range of spindlebearings.

Moreover, it leads to functional ad-vantages, too. The dimensional anddesigning accuracy of the bearingseats can be better, as the bearingbushes allow a better accessibilityfor fine machining than a spindlehousing. Vis-à-vis adapted bearingbushes, the deformations of the endof the bearing bushes are smallerand a higher rigidity can be expec-ted. Misalignment of the bearingseats can mostly be avoided, as bythe spindle and by the spindle bea-rings the bushes can be accuratelycentred. The provisions improvethe rolling conditions inside the bea-rings and have a favourable effect onfriction and wear. Besides, with re-gard to the thermical behaviour ofthe bearing and of the spindle hou-

Example of Application:Embedding of bearing bushes into a spindle-housing

Bearing bushes of tur-ning-lathe main spind-le embedded withplastic into a spindlehousing

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injection boresinjection boresinjection boresinjection boresinjection bores

plastic layerplastic layerplastic layerplastic layerplastic layerbearing bushesbearing bushesbearing bushesbearing bushesbearing bushes

spindlespindlespindlespindlespindlebearingsbearingsbearingsbearingsbearings

spindlespindlespindlespindlespindle

bearing coverbearing coverbearing coverbearing coverbearing cover

spindlespindlespindlespindlespindlehousinghousinghousinghousinghousing

28

Coatings for Joint Faces • Example of Application

Dipl.-Ing. H. Gerloff, BraunschweigReport of the Institute for Machine Tool andManufacturing Technique of the Technical Uni-versity of Braunschweig. The researches hadbeen supported by the German Community ofResearches (DFG).This print is a shortened version. Please feelfree to call on us for the complete report.

Rigidities of cylindrical plastic layers under radi-al load in dependence of temperatureplastic C = coating for joint faces SKC 55

Influence of layer thickness on the rigidity of acylindrical plastic layer

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sing, opportunities of improvementseem to be given, if the suitable pla-stic material and the correct dimen-sioning are used.The application of hard-set plasticmaterials, demonstrated here withthe example of the bearing bushes,could also lead to advantages whenapplied to other elements of a ma-chine tool. It allows to avoid expen-sive machining of high-precisionjoint faces and to reduce heat flowin precision-determined compon-ents.

Possibilities of application, for instan-ce, could be the assembly of frameelements or the heat-isolated as-sembly of motors, of feed-screwbearings, of hydraulic elements andsimilar parts.

layer thickness slayer thickness slayer thickness slayer thickness slayer thickness s

= SK= SK= SK= SK= SKC 55C 55C 55C 55C 55

rigid

ity k

rigid

ity k

rigid

ity k

rigid

ity k

rigid

ity k

plasticplasticplasticplasticplastic

rigid

ity k

rigid

ity k

rigid

ity k

rigid

ity k

rigid

ity k

temperature temperature temperature temperature temperature ϑϑϑϑϑ

C = SKC = SKC = SKC = SKC = SKC 55C 55C 55C 55C 55

29

AccessoriesReleasing CompoundsPressesLubrication GroovesSealing

29

Accessories

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30

Accessories • Releasing Compounds

Releasing Compounds

ImportantIf the releasing compounds are re-peatedly applied on the same com-ponent (forming-to-size templatesor masters), they all tend to build uphard layers.These layers can be removed byapplying suitable solvents or silicon-removing compounds.

SKSKSKSKSKC 15C 15C 15C 15C 15RRRRReleasing Compoundeleasing Compoundeleasing Compoundeleasing Compoundeleasing Compound

The releasing compound SKC 15 isa dispersion of waxes in a mixture ofsolvents.This releasing compound can beused for most of the cases of appli-cation. Applied with a rag or a brushand re-polished with a soft cloth af-ter drying, this releasing compoundis generating a highly-effective relea-sing film dimensionally not determi-nable.

SKSKSKSKSKC 14C 14C 14C 14C 14Silicon RSilicon RSilicon RSilicon RSilicon Releasing Com-eleasing Com-eleasing Com-eleasing Com-eleasing Com-poundpoundpoundpoundpound

The silicon releasing compoundSKC 14 is used for all forming-to-size jobs. In particular, for the moul-ding of arbors or components withan overall coating, the lubricationeffect of the releasing film allows asimple removal of the coated com-ponent. However, care has to betaken in the proximity of compon-ents which have be to lacquered la-ter on, as removal of the silicon re-leasing compound is difficult and re-sidues strongly affect the ability oflacquering.

SKSKSKSKSKC 13 WC 13 WC 13 WC 13 WC 13 WRRRRRelease Welease Welease Welease Welease Waxaxaxaxax

The release wax SKC 13 W is usedto obtain releasing films thicker thanthose which can be obtained withother releasing compounds of theseries SKC 15 and SKC 14. As SKC15, it is applied with a cloth. The re-lease wax enables closing of evensmall pores in the surface to be for-med.For high-precision formings to size,however, this release wax cannot berecommended. But it can be usedfor forming jobs from very roughcounter surfaces.

SKSKSKSKSKC 12 TRSC 12 TRSC 12 TRSC 12 TRSC 12 TRSRRRRRelease Sprayelease Sprayelease Sprayelease Sprayelease Spray

The releasing compound SKC 15can also be obtained as a spray. Themain field of application are complexcomponents to be formed to size,having inaccessible points which canbe reached much more easily byapplying a spray.

SKSKSKSKSKC 14 TRSC 14 TRSC 14 TRSC 14 TRSC 14 TRSRRRRRelease Sprayelease Sprayelease Sprayelease Sprayelease Spray

The silicon releasing compoundSKC 14 can also be obtained as aspray.

ApplicationApplicationApplicationApplicationApplication

The counter guideways and the sur-faces to be formed are to be clea-ned carefully. With a rag or a brush,the releasing compound is appliedor sprayed on (SKC 12 TRS andSKC 14 TRS). Following, the sur-faces are re-polished with a softcloth. Before coating, all areas whe-re compound may escape duringthe moulding process and has to beremoved after hardening, have alsoto be treated with a releasing com-pound.When using the release sprays, ab-solute care has to be taken that -when applying the releasing com-pound - all the components to becoated are carefully covered, thusbeing protected from spraying mist.

Determination of the quantity(guide value):For the application of about 10 kgsof SKC-compound about 1 kg of thereleasing compound is required.

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31

Accessories • Press- & Cartridge-Systems

spindle press for the application of slidewaycoatings and coating for joint faces where ahigh injection pressure is required or desired

standard press for the application of all theslideway coatings and coatings for joint facessuitable for application by injection. Volume ofthe cartridge: about 0.5 kgs of compound

as HP 500, volume approx. 0.85 kgsof compound

Hand-lever press HP 1000

Hand-lever press HP 500

Spindle press K 504

Cartridge KK 1000closed plastic tube, plastic piston and plastic nozzle

Cartridge SK 500closed plastic tube,plastic piston and plastic nozzle

Closure cap forpress K 504 withR ¼“ (standardmodel)

Closure cap forpress K 504 withhole for use withSK 500(special model)

Cartridge SK 500closed plastic tube,plastic piston and plastic nozzle

Cartridge KK 503open plastic cartridge, plastic piston

Press- & Cartridge-Systems

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32

Accessories • Stirrer & Hose Pump

Stirrer for SKC-coatings

Hose Pump SP 170

Simple accessory to mix compon-ents of resin and of hardener

By the special position of the blades,sucking of the air into the stirredcompound is reduced. All the dataabout application, in particular aboutstirring time and stirring speed(rpm), refer to this stirrer. Therefo-re, the use of other types of stirrersis not recommended.

The hose pump SP 170 - deve-loped by SKC - has been designedto feed continuously and via onlyone filling bore bigger quantities of acompound into a gap. Comparedwith the use of cartridges, no repea-ted putting on of the press isrequired.The thin liquid anti-friction coatingSKC 90 and the coating for joint fa-ces SKC 58 can be used. Withincertain limits, the anti-friction coa-tings SKC 62, SKC 400 ELF, as wellas the coating for joint faces SKC 57can be applied.

Dimensions approx.180 x 200 x 120 mm

Application is similar to that of thepouring technique (see guidelines ofapplication ‘Slideway Coatings’). Intothe injection bore a short tube of anouter diam. of 12mm has to bescrewed or to be adhered, onwhich the PVC tube (inside diam.12 x 2 mm and lying in the pump)will be plugged on. On the suctionside of the pump, a cartridge (werecommend a full-plastic cartridgetype VK 500) complete with nozzleis to be inserted and clamped bymeans of the setting screw. Whencoating, care has to be taken thatsufficient compound is available inthe cartridge, thus preventing airfrom being sucked in. E1

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32

33

Accessories • Mouldable Lubrication Grooves

Mouldable Lubrication Grooves

Shape AShape AShape AShape AShape A

Shape BShape BShape BShape BShape B

Shape CShape CShape CShape CShape C

Shape DShape DShape DShape DShape D

t

b

s

l

b

l

tα s

b

t

l

α

s

b

l

st

In the production of guideways evenmore cost savings can be achievedwhen the moulds for lubricationgrooves are used, as the later provi-sion of lubrication grooves is no lon-ger required.Applying an adhesive spray, theshapes of the lubrication groovesare glued on the counter guideway,pressed-on well and then treatedwith a releasing compound.

After removal of the coated com-ponents, the lubrication grooves canbe loosened easily from the slide-way coating by means of a pointedtool.When adhesing the lubricationgrooves, care has to be taken thatthey lay tightly on the surface, pre-venting any infiltration of slidewaycompound. Precise instructions areto be seen on the instructions of ap-plication for the adhesive spray.

Advantagescost effectiveavoidance of post treat-mentlots of different types

Mouldable lubricationgrooves are availablein the shapes shownopposite. For dimensi-ons please see follo-wing pages.

Sectional drawingSectional drawingSectional drawingSectional drawingSectional drawing

h

s

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34

Accessories • Mouldable Grid Lubrication Grooves

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ApplicationApplicationApplicationApplicationApplication1. Cut the grid of lubricationgrooves to the size required (with apair of scissors or a knife). For this,note the following:All the channels should be open atthe edge of the guide. The distanceto the edge of the guide path shouldbe at least 10 mm.

2. Applying an adhesive spray onthe surface of the counter guidewaywhich has been marked before andbeen treated with a releasing com-pound, following the guidelines ofapplication, the grid of the lubricati-on grooves has to be glued on andto be pressed on tightly with a rub-ber- or a foam plastic roller.

3. The grid has already been pre-treated with SKC releasing com-pound. Polish the layer of releasingagent with a short bristle brush.

4. During scraping, thegrids remain in the layer, asthe layer - not interruptedby grooves - can be scraped with-out any problem.

5. After moulding lift the grid with apointed tool and remove carefully.

Mouldable Grid Lubrication Grooves

Grid Lubrication GrooveMV 100 (detailed)

Developed especially for verticalguideways, this layout of lubricationgrooves offers some advantages:- the oil consumption required to

generate a lubrication film is by 60% less

- capillary forces retain the oil wi-thin the grooves at the verticalguideways

- close cross sections provide animmediate distribution of the oilon the sliding surface, whilst -with conventional systems - haveto be filled first

- the position of the injection borehas not to be determined exactly

!

- grids are also available for the ver-tical faces of horizontal cross slides(shape MH)

- In order to have a sufficient quan-tity of lubricant available at highspeeds to generate a hydrodyna-mic lubricating film, grids shouldbe designed with additional fee-der grooves transverse to the sli-ding direction. The grooves canbe added later by hand or inclu-ded in the moulding process. Ourproduction programme doesinclude numerous grids with addi-tional transverse grooves (see be-low on L.H. side).

Advantageslow oil consumptionoptimized surface wettingfavourable friction condi-tionscost saving by forming-to-size techniqueno re-machining requiredspecial designsgrid 15 x 10 mm

35

Shapes and Dimensions • Mouldable Lubrication Grooves

Shapes and DimensionsMouldable Lubrication Grooves

Part-No.Part-No.Part-No.Part-No.Part-No. ShapeShapeShapeShapeShape Width bWidth bWidth bWidth bWidth b Length lLength lLength lLength lLength l Space tSpace tSpace tSpace tSpace t Angle Angle Angle Angle Angle α Gage hGage hGage hGage hGage h Width sWidth sWidth sWidth sWidth s

300500 A 10 500 50 0,8 3,5

300510 A 13 500 50 0,8 3,5

300530 A 16 530 35 0,8 3,5

306810 A 22 528 25 0,8 3,5

306360 A 29 265 30 1,2 5,0

308480 A 35 525 35 0,8 3,5

301210 A 43 335 30 1,2 5,0

301060 A 45 395 65 1,2 5,0

301090 A 47 555 25 1,2 5,0

306820 A 52 180 25 1,2 5,0

301070 A 63 530 75 1,2 5,0

301080 A 63 550 25 1,2 5,0

301100 A 70 355 70 1,2 5,0

306390 A 79 555 25 1,2 5,0

306350 B 13 500 50 15° 0,8 3,5

306380 B 17 550 35 15° 0,8 3,5

306410 B 19 520 25 10° 0,8 3,5

309050 B 22 550 30 15° 0,8 3,5

308170 B 30 475 28 5° 1,2 5,0

306370 B 35 536 35 10° 1,2 5,0

306420 B 43 600 31 10° 0,8 3,5

306890 B 50 550 30 10° 0,8 3,5

306880 B 61 605 40 10° 1,2 5,0

306400 B 74 595 30 5° 1,2 5,0

307000 B 100 550 60 5° 1,2 5,0

308300 C 15 520 21 30° 0,8 3,5

308310 D 17 120 58 1,2 5,0

308320 D 38 120 58 1,2 5,0

305200 Rod 520 1,2 5,0

309980 MH 100 100 500 0,6 1,5

309990 MV 100 100 500 0,6 1,5

309070 MV 100 S 100 500 0,8 1,5

All measures in mm. Tolerance acc. DIN 7168 - gTE1.1

2

36

Accessories • Foam Rubber & Groove Foil & Magnetic Foil

Foam Rubber

Groove Foil

Magnetic Foil

Round cord Ø 3 mm, 1 m




Square 5 x 4 mm, 1 m

Square 7 x 4 mm, 1 m

9 x 2 mm, self-adhesive, 10 m



Foam rubber-rings for sealing ofbore holes (self-adhesive):

size Øi Øa

M 8 10 18M 10 12 20M 12 15 22M 16 17 26M 20 22 30M 24 27 34M 32 34 42M 36 37.5 46 gage: 5 mm

For the injection or pouring tech-nique, foam rubber profiles are useduniversally to seal the gap. By com-pressing the foam rubber profiles toabout 50 % of their original thick-ness, an optimal sealing effect is ob-tained.Examples of application are shownunder chapter ‘Guidelines forDesigning’.

To generate pockets of a largerdepth - in particular on hydrostaticguideways - preferably magneticfoils are used. Thanks to the mag-netic adhesive force, the cut piecesare easily positioned and cover thewhole surface. They can be usedmany times. Cutting can be donewith a sharp knife or scissors.

Available sizes:please see order details/price list

foil for lubrication grooves(size 500 x 400 mm)

groove system formed-to-size for a vacuum supply(total size 1200 x 860 mm)

sophisticated surfacestructures are possibleeasy application by an au-xiliary assembly foilthickness of layer ~.2mmcompatibility of drawingfiles possible (dxf-format)

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37

Guidelines for Designing

Guidelines forDesigning

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38

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Guidelines for Designing • Spatula Method

Guidelines for DesigningSpatula Method

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1)

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flat guidewayflat guidewayflat guidewayflat guidewayflat guideway

(1)The undercut is provided after moulding by grinding-in(e. g. angular or parting-off grinder).Alternatively, the undercut can be moulded by adhesivetape on the chamfer of the guideway.

dove-tail guidewaydove-tail guidewaydove-tail guidewaydove-tail guidewaydove-tail guideway


prism-type guidewayprism-type guidewayprism-type guidewayprism-type guidewayprism-type guideway

(2)Use tesakrepp around the edges of the coated area toeasily remove any excess SKC after moulding.

For further information see guidelines for application.

39

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40

Guidelines for Designing • Injection method

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Guidelines for DesigningInjection Method

flat guidewayflat guidewayflat guidewayflat guidewayflat guidewaysealing with foam rubber

flat guidewayflat guidewayflat guidewayflat guidewayflat guidewaysealing by means of metal bearing surfaces and adhesivetape

If right angle holes are to be used, blind holes are absolu-tely to be avoided!


As adhesive tape use linen-reinforced insulating tape orsimilar (see order details).

foam rubberfoam rubberfoam rubberfoam rubberfoam rubber(square)(square)(square)(square)(square)

adhesiveadhesiveadhesiveadhesiveadhesivetapetapetapetapetape

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2,5 R

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R 1/4" flat guidewayflat guidewayflat guidewayflat guidewayflat guidewaysealing by means of metal surfaces


The metal surfaces should be relieved by a minimum of0.1 mm after moulding.


foam rubberfoam rubberfoam rubberfoam rubberfoam rubber(round cord)(round cord)(round cord)(round cord)(round cord)

41

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R 1/4"

Ø 11

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/4"

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Guidelines for DesigningInjection Method

prism-type guidewayprism-type guidewayprism-type guidewayprism-type guidewayprism-type guidewaysealing with foam rubber



dove-tail guidewaydove-tail guidewaydove-tail guidewaydove-tail guidewaydove-tail guidewaysealing with foam rubber


foam rubber 9 x 4 mmfoam rubber 9 x 4 mmfoam rubber 9 x 4 mmfoam rubber 9 x 4 mmfoam rubber 9 x 4 mm

foam rubberfoam rubberfoam rubberfoam rubberfoam rubber(round)(round)(round)(round)(round)

foam rubberfoam rubberfoam rubberfoam rubberfoam rubber9 x 4 mm9 x 4 mm9 x 4 mm9 x 4 mm9 x 4 mm

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For further information see guidelines for designing.


combined (slideway/rollercombined (slideway/rollercombined (slideway/rollercombined (slideway/rollercombined (slideway/roller-type) guideway-type) guideway-type) guideway-type) guideway-type) guidewaysealing with foam rubber 9 x 2 mm

foam rubberfoam rubberfoam rubberfoam rubberfoam rubber9 x 4 mm9 x 4 mm9 x 4 mm9 x 4 mm9 x 4 mm

42


Guidelines for DesigningInjection method

round guideway - fitround guideway - fitround guideway - fitround guideway - fitround guideway - fit

coating of thread / nutscoating of thread / nutscoating of thread / nutscoating of thread / nutscoating of thread / nuts


X

R 1/4"

R 1/4"

1

ca. 0

,05

0,5 2,

5

foam rubber (round cord)foam rubber (round cord)foam rubber (round cord)foam rubber (round cord)foam rubber (round cord)

auxiliary device forauxiliary device forauxiliary device forauxiliary device forauxiliary device foraligning and sealingaligning and sealingaligning and sealingaligning and sealingaligning and sealing

ventilation notches 180° oppositeventilation notches 180° oppositeventilation notches 180° oppositeventilation notches 180° oppositeventilation notches 180° oppositeto injection boreto injection boreto injection boreto injection boreto injection bore

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R 1/4"

Ø 3 ventilation or monitoring holesventilation or monitoring holesventilation or monitoring holesventilation or monitoring holesventilation or monitoring holes

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0

detail Xdetail Xdetail Xdetail Xdetail X

43

0,5

2,5

> 5

1

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Guidelines for DesigningInjection method - Methods of sealing

metal bearing edgesmetal bearing edgesmetal bearing edgesmetal bearing edgesmetal bearing edges foam rubber 5 x 4 mm (9 x 4 mm)foam rubber 5 x 4 mm (9 x 4 mm)foam rubber 5 x 4 mm (9 x 4 mm)foam rubber 5 x 4 mm (9 x 4 mm)foam rubber 5 x 4 mm (9 x 4 mm)

0,5

2,5

2

0,3

��

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2,5

2

��

0,5

2,5

> 5

1

control andcontrol andcontrol andcontrol andcontrol andventilationventilationventilationventilationventilationnotchnotchnotchnotchnotch

sealing sheetsealing sheetsealing sheetsealing sheetsealing sheet(screwed on(screwed on(screwed on(screwed on(screwed onor glued-or glued-or glued-or glued-or glued-on)on)on)on)on)

metal bearing edges and adhesive tapemetal bearing edges and adhesive tapemetal bearing edges and adhesive tapemetal bearing edges and adhesive tapemetal bearing edges and adhesive tape foam rubber (round cord)foam rubber (round cord)foam rubber (round cord)foam rubber (round cord)foam rubber (round cord)

adhesive tapeadhesive tapeadhesive tapeadhesive tapeadhesive tape

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E1.1

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For further information see guidelines for application and accessories (foam rubber).

front-sided sealingfront-sided sealingfront-sided sealingfront-sided sealingfront-sided sealing foam rubber 9 x 2 mmfoam rubber 9 x 2 mmfoam rubber 9 x 2 mmfoam rubber 9 x 2 mmfoam rubber 9 x 2 mm

44

Guidelines for Designing • Auxiliary devices

Guidelines for DesigningAuxiliary devices

forming of flat guidewaysforming of flat guidewaysforming of flat guidewaysforming of flat guidewaysforming of flat guideways(spatula / injection method)

forming of flat guidewaysforming of flat guidewaysforming of flat guidewaysforming of flat guidewaysforming of flat guideways(injection method)

forming prismatic guidewaysforming prismatic guidewaysforming prismatic guidewaysforming prismatic guidewaysforming prismatic guideways(injection method)

Auxiliary device and setting screw (with fine thread) toalign the parts.

The parts have to be fixed during the injection process,e. g. by means of clamp claws, retainer gibs or similar.

Attention: When fixing the parts, avoid distortion!







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45

Safety Instructions

Good conditions of labour hygienicsare the absolute pre-requisite for asafe and riskless use of plasticmaterials.

Transport and storingTo prevent impurities, resins andhardeners have to be transportedand stored in well-closed contai-ners. Any spilled material has to betaken up, whereby any contact withhuman skin has to be avoided.

Working placeThe working place and its environ-ment have to be kept clean. Whenmixing the components, best clean-ness has to be observed.

One-way utensilsWherever possible, we recommendto use of one-way utensiles (e.g.plastic cartridges). After use, theseutensils are to be thrown away intothe plastic bag of dust bin lockedwith a cover.

Cleaning of devicesDevices polluted by unhardenedmixtures of resins and hardenerscan be cleaned easily with suitablesolvants. For cleaning, protectivegloves, a rubber apron and protecti-ve spectacles should be worn.

Ventilation/ExhaustionThe warehouses and workingrooms should be provided with anefficient ventilation system. On sour-ces of vapours and dust, local ex-haustion devices are also necessary.

Skin protectionAny contact of the skin with workingmaterials has to be excluded bywearing protective gloves (possiblygauntlet gloves). Besides, we re-commend to use a suitable skin-protection cream.

Any splashes which reached the skinare to be dabbed with a paper.Then, this part of the skin should bewashed with warm water and soap.Do never use any solvants to purifyhuman skin, because they destroythe natural skin protection. After cle-aning, the skin should be treatedwith a nutrient cream.

Training of the staffThe appropriate handling of chemi-cal products can be warrantied only,if the involved personnel has beeninformed well and sufficiently on therisks and on all details of the safetymeasures.Experience has shown that obser-vance of the precautionary measu-res has to be controlledcontinuously.

The purpose of these instructions is todraw attention to probable risks whenusing our plastic materials. We arewell aware, that it is impossible tocompile a catalogue comprising areimaginable sources of risks or dangersincluding the safety measures resul-ting from those risks or dangers. It isquite possible, that individual pro-ducts require additional informationor instructions. In this context we re-fer to the safety data sheets whichare available for our products and wealso refer to the instructions given onthe products themselves.

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Principal Instructions onLabour Hygienics

46

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Order Details

Order Details

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55

Slideway coatingsSlideway coatingsSlideway coatingsSlideway coatingsSlideway coatingsSKC 3 ............................ 0,1 kg ..................... 3010

0,2 kg ..................... 30200,3 kg ..................... 30300,5 kg ..................... 30501,0 kg ..................... 3100

SKC 3.812 .................... 0,1 kg ..................... 380100,2 kg ..................... 380200,3 kg ..................... 380300,5 kg ..................... 380501,0 kg ..................... 38100

SKC 21.......................... 0,5 kg ..................... 21050SKC.400 ELF ................. 0,1 kg ..................... 41010

0,2 kg ..................... 410200,3 kg ..................... 410300,4 kg ..................... 410400,5 kg ..................... 410501,0 kg ..................... 41100

SKC 400 R .................... 0,1 kg ..................... 49010SKC 60.......................... 0,1 kg ..................... 60010

0,2 kg ..................... 600200,3 kg ..................... 600300,4 kg ..................... 600400,5 kg ..................... 600500,6 kg ..................... 600601,0 kg ..................... 60100

SKC 600........................ 0,1 kg ..................... 650100,2 kg ..................... 650200,4 kg ..................... 650400,5 kg ..................... 65050

SKC 600 R .................... 0,1 kg ..................... 65019SKC 62.......................... 0,1 kg ..................... 62010

0,2 kg ..................... 620200,3 kg ..................... 620300,5 kg ..................... 620500,7 kg ..................... 620700,8 kg ..................... 620801,0 kg ..................... 62100

SKC 62.896 .................. 0,1 kg ..................... 680100,2 kg ..................... 680200,3 kg ..................... 680300,5 kg ..................... 680500,7 kg ..................... 680700,8 kg ..................... 680801,0 kg ..................... 68100

SKC 63.......................... 0,1 kg ..................... 630100,2 kg ..................... 630200,3 kg ..................... 630300,5 kg ..................... 630501,0 kg ..................... 63100

SKC 63 R ...................... 0,1 kg ..................... 69010SKC 90.......................... 0,2 kg ..................... 90020

0,3 kg ..................... 900300,5 kg ..................... 900500,6 kg ..................... 900600,7 kg ..................... 900700,9 kg ..................... 90090

Coatings for joint facesCoatings for joint facesCoatings for joint facesCoatings for joint facesCoatings for joint facesSKC 53.......................... 0,2 kg ..................... 53020

0,5 kg ..................... 530501,0 kg ..................... 53100

SKC 53.812 .................. 0,2 kg ..................... 520200,5 kg ..................... 520501,0 kg ..................... 52100

SKC 53.896 .................. 0,2 kg ..................... 560200,5 kg ..................... 560501,0 kg ..................... 56100

SKC 55.......................... 0,2 kg ..................... 550200,3 kg ..................... 550300,35 kg ................... 550400,5 kg ..................... 550501,0 kg ..................... 55100

SKC 57.......................... 0,2 kg ..................... 570200,3 kg ..................... 570300,35 kg ................... 570400,5 kg ..................... 570501,0 kg ..................... 57100

SKC 57 P....................... 0,2 kg ..................... 540200,5 kg ..................... 54050

SKC 57 P96 .................. 0,2 kg ..................... 510200,5 kg ..................... 51050

SKC 58.......................... 0,2 kg ..................... 580200,5 kg ..................... 580501,0 kg ..................... 58100

RRRRReleasing compoundseleasing compoundseleasing compoundseleasing compoundseleasing compoundsSKC 15.......................... 0,2 kg ..................... 215020

0,4 kg ..................... 2150400,8 kg ..................... 215080

SKC 12 TRS .................. 400 ml ................... 212030

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Order details

PPPPPresses & Cartridgesresses & Cartridgesresses & Cartridgesresses & Cartridgesresses & CartridgesSpindle press K 504 .................................................... 350400Hand-lever press HP 500 ........................................... 350250Hand-lever press HP 1000 ......................................... 350100Closure cap K 504 für cartridges with nozzle ............... 350260Cartridge with piston KK 503 ...................................... 350950Cartridge with piston/nozzle SK 500 ........................... 350740Cartridge with piston/nozzle KK 1000 ......................... 350820Cartridge with piston/Nozzle VK 500.......................... 350790Piston for cartridges .................................................... 350810Nozzle for cartridges .................................................. 350800Hose pump SP 170 .................................................... 350350Wash bottle with closure, 250 ml ............................... 350780PVC hose (Øi 12 x 2 mm) .................... 1 m .............. 350880PVC hose (Øi 10 x 2 mm) .................... 1 m .............. 350860

AccessoriesAccessoriesAccessoriesAccessoriesAccessoriesStirrer for SKC-coatings .............................................. 350500Sray-on glue ......................................... 400 ml ......... 350750Spatula, 50 mm .......................................................... 350940Instant bonding ..................................... 20 g .............. 350900Foil for lubrication grooves, 0.2 mm...... 1 m² ............. 352390Sand blast protective foil ....................... 1 m² ............. 352210

Sealing materialsSealing materialsSealing materialsSealing materialsSealing materialsFoam rubberRound Ø 3 mm .................................... 1 m .............. 351500Round Ø 4 mm .................................... 1 m .............. 351400Round Ø 5 mm .................................... 1 m .............. 351300Round Ø 6 mm .................................... 1 m .............. 351600Square 5 x 4 mm .................................. 1 m .............. 351200Square 7 x 4 mm .................................. 1 m .............. 351250Self-adhesive 9 x 2 mm ........................ 10 m ............ 352100Self-adhesive 9 x 4 mm ........................ 10 m ............ 352000Self-adhesive 12 x 4 mm ...................... 10 m ............ 352160Self-adhesive 19 x 2 mm ...................... 10 m ............ 352170Self-adhesive 19 x 4 mm ...................... 10 m ............ 351900

Adhesif tape 9 mm ............................... 50 m ............ 352410Adhesif tape 19 mm ............................. 25 m ............ 352200Adhesive tape 50 mm........................... 25 m ............ 351800

Foam rubberRing M8 (Ø 10/18) ..................................................... 351760Ring M10 (Ø 12/20) ................................................... 351770Ring M12 (Ø 15/22) ................................................... 351700Ring M16 (Ø 17/26) ................................................... 351710

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Order Details

SKC 13 W ..................... 0,2 kg ..................... 1130200,4 kg ..................... 1130400,8 kg ..................... 113080

SKC 14.......................... 0,2 kg ..................... 212050SKC 14 TRS .................. 400 ml ................... 214020SKC 16.......................... 0,25 l ..................... 216025

0,5 l ....................... 2160501,0 l ....................... 216100

Mouldable LMouldable LMouldable LMouldable LMouldable Lubrication Groovesubrication Groovesubrication Groovesubrication Groovesubrication Grooves050 ............................................................... 300500051 ............................................................... 300510053 ............................................................... 300530106 ............................................................... 301060107 ............................................................... 301070108 ............................................................... 301080109 ............................................................... 301090110 ............................................................... 301100121 ............................................................... 301210520 ............................................................... 305200635 ............................................................... 306350636 ............................................................... 306360637 ............................................................... 306370638 ............................................................... 306380639 ............................................................... 306390640 ............................................................... 306400641 ............................................................... 306410642 ............................................................... 306420681 ............................................................... 306810682 ............................................................... 306820688 ............................................................... 306880689 ............................................................... 306890700 ............................................................... 307000817 ............................................................... 308170830 ............................................................... 308300831 ............................................................... 308310832 ............................................................... 308320848 ............................................................... 308480905 ............................................................... 309050MH 100 S ..................................................... 309980MV 100 S ...................................................... 309070MV 20 ........................................................... 309970SAP 35 .......................................................... 309920SAP 50.1 ....................................................... 309940SAP 75 .......................................................... 309950

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Ring M20 (Ø 22/30) ................................................... 351720Ring M24 (Ø 27/34) ................................................... 351730Ring M32 (Ø 34/42) ................................................... 351740Ring M36 (Ø 37,5/46) ................................................ 351750Cork plug (Ø 9/12 x 20 mm) ...................................... 350920Cork plug (Ø 22/26 x 27 mm) .................................... 350970

Magnetic foilMagnetic foilMagnetic foilMagnetic foilMagnetic foilMagnetic foil 615 x 0.6 mm .................. 1 m² ............. 352320Magnetic foil 615 x 0.85 mm ................ 1 m² ............. 352250Magnetic foil 615 x 1.0 mm .................. 1 m² ............. 352260Magnetic foil 615 x 1.1 mm .................. 1 m² ............. 352300Magnetic foil 615 x 1.5 mm .................. 1 m² ............. 352330Magnetic foil 20 x 1.0 mm .................... 1 m .............. 352370Magnetic foil 25 x 1.0 mm .................... 1 m .............. 352310Magnetic foil 1000 x 5 x 1 mm, self-adhesive .............. 352350

SafetySafetySafetySafetySafetyProtective glove, single-use, nitrile, XL ........................ 350890Protective glove, single-use, PE, XL, 100 pcs. ............. 350895Hand cleaner SLIG spezial, 250 ml ............................. 352750

LLLLLaboratory workaboratory workaboratory workaboratory workaboratory workDe-emulsification testSingle combination ..................................................... 700040Standard series emulsions ........................................... 700010Standard series bedway oils ISO VG 68 ...................... 700060Standard series bedway oils ISO VG 220 .................... 700050

Friction testPairingsSKC 3-cast iron and cast iron-cast iron ........................ 700170only one pairing .......................................................... 700180

Compatibility testSingle combination ..................................................... 700510Standard series emulsions ........................................... 700520Standard series bedway oils ISO VG 68 ...................... 700530Standard series bedway oils ISO VG 220 .................... 700540

Please call our local agent for price details.

58

Instructions for Your Orders

Orders and inquiries shouldOrders and inquiries shouldOrders and inquiries shouldOrders and inquiries shouldOrders and inquiries shouldbe directed to:be directed to:be directed to:be directed to:be directed to:

... by mailSKC Gleittechnik GmbHPostfach 1420DE-96469 Rödental

... by [email protected]

... by fax+49 (0) 9563 7235-10

... by telephone+49 (0) 9563 7235-0

... clients abroadPlease send you order to the corre-spondent agency in your country(see page 4), or, if there is no agen-cy, directly to the head office in Ger-many (see address above).

Instructions for Your Orders

TTTTTimes of deliveryimes of deliveryimes of deliveryimes of deliveryimes of delivery

Orders up to 20 kgs placed until12 a.m. will normally be deliveredthe same day.(Only valid for the head office inGermany!)

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