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350A CO2 @ 60% Duty Cycle
320A Mixed Gas M21 @ 60% Duty Cycle
Wire Size 0.9-1.2mm

M4 – Air-Cooled High Performance Mig Welding Torch

The Arc M4 performance is superior to the Binzel® MB36 and delivers more power than an MB38.

An all day-production torch in solid wire and pulse Mig applications over 300 Amps.

Make Work Life Easier

Massive Gains in Productivity!

Arc Wear Parts are more efficient and last longer!

  • Contact tips last up to 6 times longer
  • Nozzles last up to 3 times longer
  • Tip adaptors last up to 5 times longer

Technical Specification

Cooling Method Air-Cooled Max. Load
Rating: CO2 350A 14.1KW
Rating: Mixed Gas M21 320A 11.4KW
Duty Cycle 60%
Wire Size 0.9-1.2mm


Product Catalogue – M Series

Arc M Series

Arc Air-Cooled Mig Set-Up Guide

M3 / M4 / M5 / M6

Core Technologies

SIC Technology

Accumulated spatter breaks free when the nozzle is released

OSW Technology

From drive roll to contact tip every small detail that affects soft wire welding has been considered

Spatter Isolation Chamber

Spatter created by the arc is held within a unique chamber that collects the molten metal droplets

Optimized for Soft Wire Welding

Technical design solutions have resulted in a more efficient delivery of the filler metal from the machine to the torch head.

  • Smooth transfer of the filler metal from the drive rolls to the tip
  • Improved laminar gas and reduced downtime from ‘post weld clean up’

Key Elements

Wear Parts

Exacting component design improves performance to weight ratios and wear parts durability

Swan Necks

Cutting edge material selection push the boundaries of established swan neck design

Handle Sets

Balanced and lightweight, reflecting the latest in ergonomic design principles


Developed from in-depth studies of wire types, process and gas coverage

Cable Sets

Improvements in welder comfort and reductions in welder fatigue

Key Benefits

  • Contact Tips made from CuCrZr with M10 thread
  • Increased area pick up points on contact tips reduce power loss and improve current transfer
  • Left hand threaded tip adaptors negate accidental removal when spatter is embedded at the base of the nozzle
  • All wear parts are laser marked for ease of identification

Key Benefits

  • High tech polymers for improved insulation properties, impact strength and weight reduction
  • Neck to handle interface minimizes transfer of conducted heat to the handle
  • Neck ridges provide ‘finger grip’ under the glove

Key Benefits

  • Microswitch controlled triggers provide better resistance to shorting created by welding fume dust
  • Trigger life expectancy greater than 1 million cycles
  • Optional extended trigger helps with long reach joints
  • Utilizes air gap technology, isolating the swan neck heat for cooler running handles
  • Knuckle joints and short cable support systems for improved positioning

Key Benefits

  • Steel liners for steel wire, steel metal core and flux core wires
  • Combi-liners for aluminum, stainless steel, stainless steel metal core and flux core wires
  • Unique sealing ring solution for effective sealing from impurities in argon gas processes

Key Benefits

  • New cable structures for improved flexibility and weight reduction
  • SuperSoft -20 Premium power cables, perfect for extreme subzero working temperatures, and up to 40% lighter than standard cables
  • Specified and constructed to last over 1 million flexes in life cycle testing

In The Box

Standard Set-up


Safety Guide

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