Lincoln Electric 125HD WeldPak

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Lincoln Electric 125HD WeldPak
Owner/Loaner Dan Meyer
Serial Number M3090409459
Make/Model Lincoln Electric 125HD WeldPak
Arrival Date 2009
Usability yes
Contact Dan Meyer
Where Removed
Authorization Needed yes
Hackable no
Estimated Value $400
Host Area Hot Metals

Lincoln Electric 125HD WeldPak Dan Meyer Area: Hot Metals

Hot Metals Area


This is an abbreviated list of welding equipment, but it hits the high points and covers the major welding capabilities:


For safety tips and a general operational overview, see the article on PS1's MIG welders.


The Lincoln Electric 125HD is no longer at the space but see above list of welders that are, and a link to the Hot Metals area that has a more complete list of hot metals equipment.

How to get authorized

Check the calendar for events related to welding, particularly for Hot Metals office hours. Contact the Hot Metals area host or volunteer authorizers.


Flux core or gas shielded welding of steel. Welding of aluminum with the use of the spool gun.


For use of the spool gun RTFM. aluminum requires use of argon as the shielding gas. The spool gun is in the black case on top of the grinder bench shelf (manual is inside case), it is set up to work once you RTFM.

For regular Mig welding the knurled drive roller is intended for flux core only and seems to grind some material off the wire. This will be a maintenance issue for the gun liner and I recommend we use the knurled drive only when necessary. The 125HD is configured for use with mild steel.


Additional wire drive wheels and the large spool adapter are inside the case.

This tool may require training to be used correctly.

Training Resources


Suggested Personal Equipment and Supplies

Item Description Supplier Cost
KH643 Lincoln Electric Premium Leather Welding Gloves Home Depot $14.47
KH643 Alternative to above, MIG Welding Glove Grain Pigskin, 4" Gauntlet Cuff, Gold McMaster $12.69
KH602 Lincoln Electric 5-1/4 in. x 4-1/2 in. Fixed 10 Shade Welding Helmet Home Depot $32.97
K2800-1 Alternative to above, Lincoln Electric 4-1/2 in. x 5-1/4 in. Welding Helmet with #10 Lens Home Depot $31.98
19056 Nice affordable auto darkening helmet, Northern Industrial 3 13/16 x 1 3/4 in. Welding Helmet with variable shade #9-13 $64.99
ABLF7800SG Really nice auto darkening helmet, Metal Man Blue Flame Industrial Auto-Darkening Welding Helmet with variable shade #9-13 $141.07
KH530 Lincoln Electric Straight-Head Chipping Hammer Home Depot $5.97
KH585 Lincoln Electric Wooden Shoe Handle Carbon Steel Brush Home Depot $2.47
5367T9 Lightweight Cotton Welding Clothing Jacket, 30" Length McMaster $23.00
5340T61 Alternative to above jacket for cooler welding, Leather Cape Sleeves, 13" Length McMaster $46.51
5340T41 Goes with Cape Sleeves above, Cape-Sleeve Bib, 19" Length McMaster $13.81
5263T45 If you are going to be doing a ton of welding, Heavy Duty Leather Welding Clothing Chaps McMaster $42.56
ED030584 Lincoln Electric Innershield 0.035 in. NR211 Flux-Cored Welding Wire 1 lb. Home Depot $10.97
7678A674 Alternative to above, MIG Welding Wire E71T-GS Flux Core Steel, .035" Dia, 2 lb Spool McMaster $16.67
KH726 Lincoln Electric Flux-Cored Welding Nozzle Home Depot $3.97
KH712 Lincoln Electric 7/200 in. Wire Feed Welder Contact Tip 035” (0.9 mm) Contact Tips (Qty. 3) Home Depot $8.97
78375A608 Alternative to above, Tweco #11-35 Contact Tip, .035" Wire Size, packs of 10 McMaster $6.00
6511K29 Stock for practice, Low Carbon Steel Round Edge Rectangular Bar 1/16" Thick, 1-1/2" Wide, 6' Length McMaster $15.53
Upgrades for our welders Some of these items have been added to our welders
K2526-1 To add gas shielding and MIG (GMAW) capability including welding aluminum: Lincoln Electric MIG Conversion Kit with 1/4 in. Regulator with Gauge Home Depot $121.00
K2532-1 Magnum 100SG spool gun, air-cooled for welding aluminum Airgas Mid America $200
Various Argon (for aluminum)and Agrgon/CO2 blend (for steel) gasses, $170 for cylinder, $30-40 for gas Airgas Mid America $210
KH495 Small canvas cover for welders Airgas Mid America $25