lenco welding accessories ltd. section 500 …lencocanada.com/files_500-06/500-6.pdf · manual tig...

TUNGSTEN & TUNGSTEN GRINDERS PAGE 1

LENCO WELDING ACCESSORIES LTD. SECTION 500

© June 2008

Introducing...Introducing...Introducing...Introducing...Introducing...The Quickest and Easiest Way To PrepareTungsten Electrodes• Quick & easy setup and operation saves time, eliminates hassles• Consistently & properly ground electrodes provide optimum, repeatable

welding results• Manufactured in U.S.A. Expert service and spare parts are available

immediately• Proper diamond cutting eliminates risk of electrode splintering & weld

rejections

Step 1 - Diamond Ground Flat

Produces a diamond ground flat surface at the tip of theelectrode.

Step 2 - Diamond Ground Taper

Step 3 - Diamond Cut-to-Length

Produces a longitudinally ground taperwith a 20RMS finish and a ± ½° angletolerance.

Produces smooth diamond cut elec-trodes on a selectable length scale.

DiamondCut To Length

DiamondGround Taper

DiamondGround Flat


SECTION 500 LENCO WELDING ACCESSORIES LTD.

© June 2008

DGP-1

DGP-2

DGP-3

• Our most economical grinder• Accomplishes process steps 1 & 2: Flat and Taper

grinding• For welders who regrind but don't cut, this prod-

uct provides an all purpose wheel on the left in-stead of the cutting apparatus

• A complete system that includes diamond grind-ing and cutting wheels to accomplish all electrodepreparation steps.

• Cutting apparatus includes adjustable stop & scaleto allow users to cut as short as .200" (3mm)

• A complete system that includes diamond grind-ing and cutting wheels to accomplish all electrodepreparation steps.

• Cutting apparatus includes built-in micrometer in-dexer for quick and very accurate cuts of differentlengths as short as .200" (3mm)

ACCESSORIES• Vacuum system in insulated cabinet for dust

collection• Short collets for grinding short electrodes• Flexible spotlight• Pre-wired and integrated 220v step down trans-

former (If required)

FEATURES• No tools required for setup or collet changes• Flat, grind and cut most electrodes in 60 seconds

or less• Long life, high-quality diamond wheels that are

perfect for grinding tungsten• Fine, longitudinal finish on taper grinding to im-

prove arc stability, starting and consistency• Taper angle adjustable from 6°-120° with a toler-

ance of ± .5°• Collets available to grind electrodes for .020” to 3/

16” (.5mm-4.8mm) diameter

APPLICATIONSMechanized / Automatic TIG & Plasma WeldingManual TIG & Plasma WeldingOrbital Tube & Pipe Welding

SPECIFICATIONSDGP GrindersDimensionsDimensionsDimensionsDimensionsDimensions: 21.5” (L) x 12” (D) x 12” (H) 564mm x

305mm x 305mmWeightWeightWeightWeightWeight: 27.2 lbs. / 12.3 kgVVVVVoltageoltageoltageoltageoltage: 115 VAC, 60 Hz, or 220 VAC, 50 Hz optionAmperageAmperageAmperageAmperageAmperage: 5.0 Amps

DGP Grinders with Vacuum CabinetDimensionsDimensionsDimensionsDimensionsDimensions: 26” (L) x 20” (D) x 44” (H) 660mm x

508mm x 1,118mmWeightWeightWeightWeightWeight: 102 lbs. / 46.4 kgVVVVVoltageoltageoltageoltageoltage: 115 VAC, 60 Hz, or 220 VAC, 50 Hz optionAmperageAmperageAmperageAmperageAmperage: 13.5 Amps

Accessories (Optional)• Vacuum system in insulated work cabinet• Work cabinet without vacuum• Flexible spotlight• Short collets for grinding short electrodes• Tungsten electrode Tip/Flat gauge• Transportable insulated carry case• Secondary safety cover for cut off wheel

Optional accessories shown





© June 2008

TUNGSTEN ELECTRODE GRINDERTUNGSTEN ELECTRODE GRINDERTUNGSTEN ELECTRODE GRINDERTUNGSTEN ELECTRODE GRINDERTUNGSTEN ELECTRODE GRINDERSSSSSAFE • COMPAFE • COMPAFE • COMPAFE • COMPAFE • COMPAAAAACT • AFFCT • AFFCT • AFFCT • AFFCT • AFFORDORDORDORDORDABLEABLEABLEABLEABLE

Heavy Duty Dedicated Electrode GrinderDesigned for Continuous Grinding of .040" TO 3/16" (1.0MM - 4.8MM)

SafetyEnclosed grinding area captures Tungsten dust for easy disposal.

Weld Quality20Ra surface finish improves Tungsten life, arc starting, arc stability and

produces consistent weld penetration.

ProductivityCorrectly and consistently Diamond grind your Tungsten Electrode longitudi-

nally, in less than 30 seconds.

ValueThe PIRANHA III Diamond grinds, flats and notches your Tungsten economi-

cally.



© June 2008

Tungsten Electrode Grinder

FEATURES SPECIFICATIONS• Easy set-up, optimal consistency and near-perfect

repeatability.

• Compact, durable and solid design with no vibration.

• Longitudinal 20 RA grinding for maximum arc starting,arc stability, electrode life & weld penetration.

• Universal collet arm for 6 electrode sizes - 040" (1.0mm),1/16" (1.6mm), 3/32" (2.4mm),1/8" (3.2mm) ,5/32"(4.0mm) & 3/16" (4.8mm) - with no equipment changes.

• Included angle scale for angles from 10° - 60°

• Precision tip flat gauge & depth adjustment stop en-sures exact tungsten points every time - enablingconsistent, repeatable arc performance and weldingoutput.

• Containment baffle to keep dust inside the grinderhousing, for safety and easy disposal.

• Tip flat block for square end grinding and removing badtips.

• Electrode notching station for simple cut-off.

• Detailed manual for valuable engineering data andwelding recommendations.

Range of Included AngleRange of Included AngleRange of Included AngleRange of Included AngleRange of Included Angle: 10° - 60°

Electrode DiametersElectrode DiametersElectrode DiametersElectrode DiametersElectrode Diameters: 040" (1.0mm), 1/16"(1.6mm), 3/32" (2.4mm), 1/8" (3.2mm) ,5/32" (4.0mm) & 3/16" (4.8mm)

Minimum Electrode LengthMinimum Electrode LengthMinimum Electrode LengthMinimum Electrode LengthMinimum Electrode Length: 1.75" (4.5mm)

VVVVVoltageoltageoltageoltageoltage: 100/120 VAC, 50/60Hz, 220v

Power ConsumptionPower ConsumptionPower ConsumptionPower ConsumptionPower Consumption: 500 Watts

MotorMotorMotorMotorMotor: 1/10 hp, 3000rpm, 2.5 amps

LengthLengthLengthLengthLength: 13.5" (342mm)

WidthWidthWidthWidthWidth: 7.0" (177mm)

HeightHeightHeightHeightHeight: 9.5 (240mm)

WeightWeightWeightWeightWeight: 46 lbs (20.87kg)

BENEFITS• SafetySafetySafetySafetySafety: Enclosed grinding area captures Tung-

sten dust for easy disposal.

• Weld QualityWeld QualityWeld QualityWeld QualityWeld Quality: 20 Ra surface finish improvesTungsten life, arc starting, arc stability and pro-duces consistent weld penetration.

• ProductivityProductivityProductivityProductivityProductivity: Longitudinally Diamond grind yourTungsten electrode in less than 30 secondscorrectly and consistently.

• VVVVValuealuealuealuealue: The PIRANHA III Diamond grinds, flatsand notches your Tungsten economically.



© June 2008

TungstenWelding Electrodes

“Gas Tungsten Arc Welding” - GTAW - fre-quently called “Tungsten Inert Gas Welding” -TIG - is used to weld any commercial metal,but most frequently is employed in joiningaluminum alloys, copper, magnesium, stain-less steel and titanium.

Tungsten welding electrodes which are usedin combination with an inert gas, usually argonor helium, in a welding process which preventscontamination from oxygen and nitrogen, thusproviding a strong, ductile, homogeneousweld.

The tungsten welding electrode itself is non-consumable and is used merely as the termi-nal of the electric arc which produces the de-sired heat necessary to accomplish the join-ing of the metal. Filler metal may sometimesbe required depending on base metal thick-ness, joint design and weld characteristicswhich are desired.

Plansee Electrodes are of the highest qualityand exceed AWS Standard A5.12-80 (FormerASTM Standard B297-.65T). Plansee is Eu-rope's largest producer of TIG welding elec-trodes.

Ceriated Tungsten (Non-Radioactive)• Good arc striking • Excellent arc stability • Low electrode consumption • Ceriated tungsteneliminates the problem of disposal of grinding dust and end pieces of thoriated electrodes.Ceriated electrodes can be used in a wide range of applications and are ideally suited to thewelding of stainless and hot working steels, aluminum, nickel and nickel based alloys (superalloys), copper, refractory metals, titanium & titanium alloys and magnesium. Companies inboth manual and automatic welding can now profit from the benefits outlined above. Take ad-vantage of the new development.

Lanthanated Tungsten (Non-Radioactive)• A new development in tungsten • Best results in electrode life, starting, amperage range, upto 10 times longer life, does not splinter or split. Stays clean longer. Holds its point much longer.More actual welding time. No more stocking of different electrode types (pure, thoriated,zirconiated, ceriated). Lanthanated tungsten does it all.

Pure Tungsten and 2% Thoriated Tungsten Electrodes are still available

Colour Codes for TungstenPure - Green

1% Thoriated - Yellow2% Thoriated - Red

Zircon - Brown2% Ceriated - Grey

1% Lanthanated - Black

See Page 10 forOrdering Information



© June 2008

1% LANTHANATEDTungsten Electrodes

The Best Tungsten AThe Best Tungsten AThe Best Tungsten AThe Best Tungsten AThe Best Tungsten Available Tvailable Tvailable Tvailable Tvailable Todayodayodayodayoday

Environmentally FEnvironmentally FEnvironmentally FEnvironmentally FEnvironmentally Friendly!riendly!riendly!riendly!riendly!

SAVE MONEY - SAVE TIME - BETTER QUALITYPlus these advantages versus Thoriated and other Tungsten

• Higher amperage capacity, use smaller diameter• Excellent starting characteristics with any starting method

• Same favourable characteristics with AC or DC• Stable arc over entire amperage range• No more stocking of different electrode types (pure, thoriated, zirconiated, ceriated)

• Not Radioactive• Up to 10 times longer life• Doesn't splinter or split• Electrode stays clean longer• Holds its point much longer• More actual welding with less time used for preparation

ELIMINATE RADIOACTIVE TUNGSTENS FROM THE WORK PLACEThe American Welding Society (A.W.S.) May-1994 Commission VIII issued a state-ment on health aspects in the use of Thoriated Tungsten Electrodes. Thorium is alow-level radioactive material that the A.W.S. determined could present a long-termhealth hazard if ingested or inhaled in sufficient quantities. During the grinding ofelectrode tips there is generation of radioactive dust, with the risk of internal expo-sure.A.W.S. Recommendation: substitution of other emitters such as cerium andlanthanium to replace thorium should be considered.

In response to this commission, our factory developed electrodes with newadditives: we first tried Cerium, respectively Cerium Oxide (known as Ceriated Tung-sten). We were able to avoid radioactivity and we also noticed much better perform-ance. After further research and development with tests on other Rare Earth Oxides,like Yttrium and Lanthanum Oxide, Lanthanum produced the best results in elec-trode life, starting, amperage range, etc. Less resistance and better oxide distribu-tion in our Electrodes provide the basis for best performance. Many reputable com-panies have evaluated Lanthanated and found major improvements in performance,elimination of health and safety hazards, and because of longer life, they found themto be much more economical.

Safety

Note



© June 2008

Thoriated Tungsten Radioactivity InformationThorium is a radioactive alloy used in tungsten welding electrodes to assist in arc starting.Although companies involved in welding have been using thoriated electrodes for manyyears, the industry is becoming more mindful of their potential health hazards. The follow-ing are notes, warnings, and recommendations from various organizations on the use ofthoriated tungsten welding electrodes.

Standard Manufacturer's Warning: Thorium oxide is a naturallyoccurring radioactive element. It is an alpha emitter and as such, itsprimary hazard lies in inhalation of dust/fumes.

American Welding Society: Thoria is a very low level radioactivematerial. For the amount of thoria present in these electrodes, thelevel of radiation has not been found to represent a health hazard.However, if welding is to be performed in confined spaces for pro-longed periods of time or if electrode grinding dust might be in-gested, special precautions relative to ventilation should be consid-ered. The user should consult appropriate safety personnel.

The Welding Institute: Thorium is a radioactive element. The HSEhas recommended to factory inspectors that, where thoriated tung-sten electrodes are not necessary, users should be encouraged tolook for alternatives.

N.T.P. and I.A.R.C. Assessment: Thorium dioxide has been identi-fied as a carcinogen by the National Toxicology Program and Inter-national Agency for Research on Cancer.

LENCO OFFERS TUNGSTEN ALTERNATIVES

Lenco offers Non-Radioactive Ceriated and Lanthanated Tungsten which isreadily available and affordably priced. In most welding applications, this type oftungsten also outperforms thorium by a large margin.

Call or Fax Toll FreePhone 1-800-265-5678 Fax 1-800-668-3626



© June 2008

Tungsten Selection ChartFinishThe electrodes are free of surface impurities,undesirable films, foreign inclusions, pipes,seams or slivers in order to assure correct op-eration of welding equipment with no adverseproperties in weld deposits.

All electrodes are produced to rigid standards

of straightness so they may be adjusted freelyin use; each electrode is colour coded accord-ing to AWS specifications.

Ground finish designates that a tungsten elec-trode has been cleaned of impurities after it hasbeen centerless ground to a uniform size.

Pure Tungsten Ground

Part No. Length Size10G7 7” 1/16” .060”10G7 7” 3/32” .093”10G7 7” 1/8” .125”10G7 7” 5/32” .156”10G7 7" 1/4" .250”

2% Thoriated Tungsten Ground

Part No. Length Size30G7 7” .040” .040”30G7 7” 1/16” .060”30G7 7” 3/32” .093”30G7 7” 1/8” .125”30G7 7” 3/16” .187”

2% Ceriated Tungsten Ground

Part No. Length Size50G7 7” .040” .040”50G7 7” 1/16” .060”50G7 7” 3/32” .093”50G7 7” 1/8” .125”50G7 7” 5/32” .156”50G7 7” 3/16” .187”

1.5% Lanthanated Tungsten Ground

Part No. Length Size70G7 7” 1/16” .060”70G7 7” 3/32” .093”70G7 7” 1/8” .125”70G7 7” 5/32” .156”

Also Available in 3” and pre-ground (see page 11-12) by Special Order

1% Thoriated Tungsten Ground


Zirconiated Tungsten Ground


1% Lanthanated Tungsten Ground

Part No. Length Size60G7 7” 1/16” .060”60G7 7” 3/32” .093”60G7 7” 1/8” .125”

2% Lanthanated Tungsten Ground

Part No. Length Size80L7 7” 1/16” .060”80L7 7” 3/32” .093”80L7 7” 1/8” .125”

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