LAF 631/1001/1251/1601


LAF 631/1001/1251/1601

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Three-phase, fan-cooled DC welding power sources designed for high productivity automated submerged-arc welding (SAW) or high productivity gas metal arc welding (GMAW).


  • Used in combination with ESABs A2-A6 equipment range and the A2-A6 PEK or A2 PEI process controllers
  • Good arc stability at both high and low arc voltages
  • Adjust and monitor the welding parameters on the power source from the front panel of the process controller (PEK or PEI)
  • Welding current range can be extended by connecting two power sources in parallel for the most demanding applications
  • Ideal for SAW applications such as wind tower components, nuclear power vessels, boilers and ship building applications
  • Ideal for GMAW applications such as welding the root pass in heavy pipe production

Welding Process

  • SAW - Submerged Arc Welding
  • Cladding
  • Air Carbon Gouging

Power Specifications

Model LAF 1001
Setting Range 40/22-1000/45
Duty Cycle 100 %
Model LAF 631
Setting Range 50/17-630/44
Duty Cycle 60 %
Model LAF 631
Setting Range 30/21-800/44
Duty Cycle 100 %
Model LAF 1001
Setting Range 50/17-1000/45
Duty Cycle 100 %
Model LAF 1251
Setting Range 60/17-1250/44
Duty Cycle 100 %
Model LAF 1601
Setting Range 40/22-1600/46

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Contact us online

Head Office
ESAB Welding & Cutting Products
6200 Cantay Road, Unit 20
Mississauga, Ontario L5R 3Y9
Tel: (905) 670-0220
Toll-free: (877) 935-3226
Main Fax: (905) 670-4879

Colfax Corporation
420 National Business Parkway, 5th Floor
Annapolis Junction, MD 20701

Quebec Region Office
25 de Lauzon, Suite 5
Boucherville, Quebec

Western Distribution Center
6715-50 Street, N.W.
Edmonton, AB
T6E 3M6
Tel: (780) 466-8323
Main Fax: (780) 466-2682

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Part Numbers and Accessories

Part Numbers : LAF 631/1001/1251/1601
LAF 1001, 460V 3Ph, CSA 0460513883
LAF 1001, 575V 3Ph, CSA 0460513884
LAF 1251, 460V 3Ph, CSA 0460514883
LAF 1251, 575V, 3Ph, CSA 0460514884
LAF 1601, 460V 3Ph, CSA 0460515883
LAF 1601, 575V, 3Ph, CSA 0460515884