cilindros e servo cilindros

8/13/2019 cilindros e servo cilindros

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Cylinders and servocylindersaccording to ISO standard

5.000 m2under roof

Production/year: over 30.000

Personnel, total: 45

Turnover: 10 Million

1 Assembling and testing

2 Big-bores assembling and testing

Manufacturing plant

Cylinders division


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Manufacturing Facilities

All Atos cylinders and servocylinders

are manufactured in the Modena

facility

Assembling and testing department -

3500 m2

Assembling benches equipped with

pneumatic screw drivers for large

series production with reduced

assembling time. Automatic testing

benches for complete electric and

hydraulic tests according to ISO 10100

3 Workshop unit

4 Assembling department

Workshop unit - 1500 m2

Rods, bodies and tie rods are machined internally by

means of automatic turning machines to satisfy thewide range of available cylinders sizes. Multi-turret

simultaneous machining, CAM system management

and automated workpiece loading and unloading

allow to reduce scraps and machining times


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CH square heads with counterflangesISO 6020-2/3Nominal pressure 16MPa (160 bar) max 25MPa (250 bar)

Bore sizes from 63 to 400 mm

Up to 3 rod diameters per bore

Strokes up to 5000 mm

9 standard mounting versions

6 types of seals options

Rod guide with bushing in bronze

5 CK cylinders and servocylinders

Range of standard cylinders

CK square heads with tie-rods

ISO 6020-2Nominal pressure 16MPa (160 bar) max 25MPa (250 bar)






Rod guide with bushing in bronze

6 CK & CH cylinders


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CC Round heads with counterflangesISO 6022

Nominal pressure 25MPa (250 bar) max 32MPa (320 bar)






Oil ports GAS or SAE6000 threaded

7 CN & CC cylinders

CN Round heads with counterflanges

ISO 6020-1Nominal pressure 16MPa (160 bar) max 25MPa (250 bar)






Oil ports GAS or SAE3000 threaded

8 CC cylinders


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Materials

Heads and trunnions

Realized in cast ironor steel. The widestorage of thesecomponents ensuresquick deliveries

Piston

Made of highresistance carbonsteel and it ispreloaded to avoidthe unscrew and toimprove thethread fatigue life

Rod

Hardened andtempered alloysteel with rolledthreads to improvethe rod strength

Chrome-plating

Chrome thickness >20 mgrants a corrosion resistanceover 200h in NSS; the surfaceroughness Ra50% ensure extended life ofsealing system

Tie-rods/screws

Realized in normalizedautomatic steel withrolled threads toimprove strenght

Body

The seamless tube is cold

drawn or hot rolledaccording to the cylindersize. Selected materialsgrants high safety factorsfor pressures up to 400 bar

Rod bearing

Rod guide is realized bya bronze bearing or guiderings for high lateral loadsand low friction guide


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Sealings

The wide range of available sealing systems allows the best choice for any application, according to working

speed, fluid temperature and type. Polyurethane material ensures the perfect hydraulic seals, PTFE bronze

filled performs high speed and very low friction. See the table below for further information.

10 Sealing system type1

9 Sealing system type 4 Sealingsystem

typeMaterial Features

Max

speed

[m/s]

Fluid

temperature

range

1NBR +

POLYURETHANE

high static and dynamic

sealing0,5 -20C to 85C

2 FKM + PTFEvery low friction and

high temperatures4 -20C to 120C

4 NBR + PTFEvery low friction and

high speeds4 -20C to 85C

6-7 NBR + PTFEvery low friction single

acting - pushing/pulling1 -20C to 85C

8PTFE + NBR +

POLYURETHANElow friction 0,5 -20C to 85C

operating pressure [bar]

frictionpressure

[bar]

0,5

1,0

50 150 250

1,5

seals 1 seals 8

seals 2, 4, 6, 7


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Hydraulic cushionings

Hydraulic cushionings at stroke end are recommended for speed

higher than 0,05 m/s and if there is no external softening system.

Atos cushioning profiles are designed to perform an effective

reduction of rod speed before hitting the mechanical stroke end andto dissipate high energies, limiting the pressure peak.

The adjustable cushionings allow to optimize the cushioning

performance according to the rod speed and to the actuated mass.

11 Rear cushioning

12 Regulation valve

Hall effect- Electronic sensor

- Infinite electric life (no wear parts)

- High sensitivity and switching reliability

- Not suitable to directly pilot a power load

Reed- High switching power

- Suitable to directly pilot a power load

- 2 wires circuit for easy connection

- Max current: 500 mA

Inductive- Normally open contact

- Amplified signal to direct drive a relay

- Rod position detection with 3 mm

of adjustment

Proximity sensors features

Speed during the cushioning Pressure inside cushioning chamber

stroke endP max

speed

pressure

light

strong real

ideal

stroke end

strokestroke


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Proximity sensors

Fixed proximity sensors

Proximity sensors can be optionally introduced on standard

cylinders to detect the rod position near the mechanical stroke end.

Their function is based on the variation of the magnetic fieldgenerated by the sensor itself when a magnetic element enters its

influence area

13 Fixed proximity sensors

14 Adjustable proximity sensors

15 Sectioned view of CKS cylinder

CKS cylinders with adjustable proximity sensors

CKS cylinders are supplied with adjustable proximity sensors to

monitor the position of the rod along the cylinder stroke.

Reed or Hall effect sensors can be easily assembled on one of

the four tie rods by means of proper clamps which allow to position

them along the cylinder body


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Servocylinders range

Atos servocylinders are compact motion control units and allow to achieve higher performance, top reliability

and long working life. They are supplied with a wide range of position transducers with different technologies

to satisfy all market requirements. Servocylinders can be supplied with on-board proportional valves

16 High performance servoactuator

19 Parison servoactuator

17 CKF servocylinder

20 CKP servocylinder

18 CKM servocylinder

21 CKN servocylinder with remoteelectronics


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Position transducers range

Code CKF CKM CKN CKP CKV

Transducer type Magnetosonic, analogMagnetosonic,

programmableMagnetostrictive Potentiometric Inductive

Electronic

conditioningIntegral Integral Integral None Separate

Linearity error < 0,02% F.S. < 0,01% F.S. < 0,02% F.S. 0,1% F.S. 0,2% F.S.

Repeatability < 0,001% F.S. < 0,001% F.S. < 0,005% F.S. 0,05% F.S. 0,05% F.S.

Max speed 1 m/s 2 m/s 1 m/s 0,5 m/s 1 m/s

Strokes 100 to 2500 100 to 3000 100 to 4000 100 to 900 100 to 1000

Interface

Voltage: 0 10 VAnalog: 010 V,

420 mAVoltage: 0 10 V

Voltage 0 10 V

Voltage: 0 10 V

Current: 4 20 mA

Digital SSI,

CANopen,

PROFIBUS DP

Current: 4 20 mA Current: 4 20 mA

Typical

applications

Sawing or bending

machines

Steel plants, plastic

and rubberFoundry and energy Various

Simulators and

energy

Temperature limit -20C to + 75C -20C to + 75C -20C to + 90C -20C to + 75C -20C to + 120C

Main features

High precision Several available output signals Long working life thanks to the contactless

construction Hard environmental conditions (shock,vibrations) and high working frequencies

High compatibility with high magnetic fields

High precision Compact construction Rugged executionwithout externaloverall dimension

Good price/performance ratio

Compact construction Mechanical contact

between the wiperand the resistive track

Long working lifethanks to thecontactlessconstruction

Compact construction High resistance at

high temperatures


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CKA Atex cylinders

CNX stainless steel cylinders

CKA cylinders are designed to work in

presence of explosive gas or dust,

according to ATEX 94/9/EC directive,

Ex II 2GD ck IIC T6zones 1, 2, 21, 22,being unable to involve the self-

ignition of the surrounding atmosphere.

ATEX cylinders can be supplied with

ex-proof proximity sensors or rod

position transducer, ATEX certified

CNX cylinders are made with high quality stainless steel to ensure high resistance to corrosive environments

and/or for use with aggressive fluids like HFA water based or just pure water. They are ideally suited for a

variety of applications including: Pharmaceutical, Marine, Military, Waste Management, Offshore and Chemical

22 ATEX cylinders 23 ATEX servocylinder

24 CNX stainless steel cylinder

Material Cylinder componentMechanical propertiesRm min Rs min

[MPa] [MPa]

Corrosionresistance

AISI 316L housing and heads 450 195 >1200 h

AISI 316L A4 70 screws 700 450 >1200 h

AISI 431 piston and rod 800 600 >600 h

AISI 420 Spherical bearing of style S 700 500 1000 h


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Anticorrosion treatments

Rods Ni + Ch plating

Nickel + Chrome plating increases therod corrosion resistance up to 1000 h inneutral salt spray with rating 10 accordingto ISO 10289.

Thickness: 30 m Nickel + 20 m Chrome

Rods ceramic coating

Ceramic treatment consists of a multilayercoating applied on the rod to grantexcellent corrosion resistance in harshenvironment such as petrochemical,

military and railways.

Cylinders Geomet treatment

Geomet treatment provides a corrosionprotection > 1000 h in neutral salt sprayand improves the corrosion resistance ofpainting.

Thickness: 8-10 m

25 Rod with Ni + Ch plating 26 Rod with ceramic coating 27 Geomet treatment

28 G0 sealing system 29 G9 sealing system

High performance sealing system

G0 Sealing system - up to 15 Hz

G0 sealing system - PTFE with mineral fiber -to perform good sliding and low wear at up to15Hz working frequencies

G9 Sealing system - Low friction

G9 sealing system - special polymer compoundwith high resistance to scratch and extrusion -performs heavy duty applications with verylow stick-slip


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Special cylinders

The succesful experiences in several sectors such as steel industry, foundry, naval & marine, military, plastic

injection, machine tools, etc. witness the Atos ability to develop special cylinders according to any application

requirement. Atos cylinders can be supplied with naval certifications such as DNV, Bureau Veritas, ABS, Rina, etc.

30 Naval 31 Military 32 Hazardous area 33 Railways 34 Avionic

DVC is an easy to use tool for quickselection of hydraulic cylinders &servocylinders and following insertion inplans CAD of machines and industrialinstallation.

Main functionalities: 2D & 3D drawing for any CAD system Visualization of cylinder for installation Information on variants and options Automatic offer & order forms

DVCdesigner


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Research & Development

FEM - Finite Element MethodAlternate push and pull loads with high working frequenciesrequire a careful analisys of the rod thread strength which isthe cylinders max critical part. FEM software allows to predictits expected service life and to ensure the strongest possibleresistance

Simulation softwares

Fluidodynamic simulationsCritical applications (i.e. high speed and short cushioningstrokes) require an accurate cushioning design to ensure safetyapplication. Atos technical department uses fluidodynamicsimulation softwares to design the best cushion profileaccording to the customer requirements

Testing benchesR&D department is equipped with automatic testing benches with highaccuracy acquisition systems:

cushioning testing bench: to optimize the cushioning profile ensuring topdamping effect friction testing bench: to develop special sealing system for any operating

condition fatigue testing bench: to predict the cylinders expected life with high

frequency tests35 R&D department

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rods strengthcushionings

intermediate & different rods

expected life - cyclesworking pressure - bar

pressure

-bar

Emax[J]-logscale


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Cylinders Division41122 Modena - Italy - Fax +39 059 253346 - Tel +39 059 250550 - [email protected]

21018 Sesto Calende - Italy - Fax +39 0331 920005 - Tel +39 0331 922078 - [email protected] - www.atos.com

Atos spa

TC12-1/E

cylinders & servocylinders

cilindros e servo cilindros

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