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LE31MP Multi-Process Welder
LE31MP Multi-Process Welder
LE31MP Multi-Process Welder
LE31MP Multi-Process Welder
LE31MP Multi-Process Welder
LE31MP Multi-Process Welder



The LE31MP® 140 amp multi-process welder is excellent for MIG, Stick, Flux-Cored, DC TIG welding and works well with a spool gun for aluminum welding


Output Output



The Lincoln Electric LE31MP is a multi process welder that is lightweight and portable - perfect for a DIYer, maintenance & repair, hobbyist or metalworking artist. It connects to a common 120-Volt power and is an excellent choice for MIG, STICK, Spool Gun, Flux-Cored, or TIG welding. The intuitive user interface, easy setup, and full list of accessories permits welding in no time. Machine comes ready to MIG weld, Flux-Cored weld, and Stick weld. TIG torch and pedal not included. TIG Torch - K1782-16 TIG Pedal - K4361-1

Heavy Duty Wire Drive

  • Fully adjustable drive system reduces the chance of wire tangling and crushing.
  • Brass-to-brass gun connection enhances conductivity.
  • Durable cast aluminum gear box delivers added drive torque and quiet operation.
  • Easy-turn numeric drive tension indicator identifies optimized ranges for different wire types.

Capable Performance

  • Forgiving arc makes dialing in your application easy.
  • Smooth arc starts with minimal spatter.
  • Wide 30-140 amp welding output range.
  • MIG weld 24 gauge up to 3/16in in a single pass. Weld up to 1/4in. steel using self-shielded Lincoln Electric Innershield®  wires. Stick weld to 3/16in., and TIG weld to 1/8in.
  • 60% duty cycle for extended welds.
  • Optional Tig torch 
  • Optional foot pedal for remote control of weld output while TIG welding
  • Optional spool gun for aluminum welding



  • Multi-Process Welder: MIG weld, Flux-Core weld, and Stick weld
  • MIG - wide 30-140 Amp welding output for MIG, FCAW and spool gun allows welding on 24 gauge to 5/16 in material
  • MIG - durable cast aluminum gear box delivers added torque, quiet operation and brass to brass gun connection enhancing conductivity
  • TIG - the wide 10-120 Amp range permits welding on thin and thick steel and stainless
  • TIG - weld with or without a foot pedal, the machine will automatically detect and configure when a foot pedal is connected
  • Stick - smooth arc starts prevent sticking
  • Stick - heavy duty electrode holder and cable included
  • Applications: Shop, Farm, Home and Autobody
  • MIG Aluminum Welder capabilities with spool gun sold separately


Warning -

Cancer and Reproductive Harm -

What's Included

  • (1) Magnum® PRO 100L Gun and 10ft Cable Assembly for Wire Feed Welding (3) .025 Contact Tips (3) .035 Contact Tips (1) Gasless Nozzle
  • Gas Nozzle (1) Spindle Adapter for 8in diameter spools (1) Drive Roll for .025 - .035 wire (1) Shield Gas Apparatus (1) Sample Spool of SuperArc® (1) Sample Spool of NR®-211-MP (1) Work Clamp with 10ft Cable Instruction Manual Quick Start Guide (1) Electrode Holder with 10ft Cable for Stick Welding

You May Also Need


Product Weights & Dimensions

Dimensions (H x W x D) 13.6 in x 8.9 in x 18.1 in (345 mm x 224 mm x 460 mm)
Net Weight 34.5 lbs (15.6 kg)


Max Rating 140

Basic Specification

Input Voltage 110/115/120
Input Current 20A
Input Hertz 60
Input Power 120/1/60
Input Phase 1
Mode Icon CV
Output Range 30-140A
Polarity DC
Rated Output 95A/18.75V/60%


Warranty 3 years

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