Canaweld Multi-Process 221 SLM MIG-TIG-Stick Welder

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Canaweld Multi-Process 221 SLM


The Multiprocess 221 SLM is a powerful, portable, and intelligent welding machine. This unit is capable of MIG welding, stick welding and TIG welding with a lift start in manual or synergic mode.

The combination of synergic control and job programming ability makes this unit user-friendly for less experienced welders looking to perform high quality welds. It features a user-friendly panel which walks the user through setup one step at a time and then automatically adjusts its parameters to meet the required use.

The voltage of this unit is selectable between 230 V (±15%) or 115 V (±15%) which makes it suitable for any single voltage electrical network. It is the perfect choice for anyone; from a novice to the professional welder who has speed and quality in mind.

The Multiprocess 221 SLM is capable of welding with Canaweld’s spool gun which ensures trouble-free Aluminum MIG welding.


  • MIG Package - PLC7580158 MULTI-PROCESS 221 SM, Silver
  • MIG/TIG Package -  PLC7580159 MULTI-PROCESS 221 SM, Gold
  • MIG/TIG Package with wheel kit -  PLC7580160 MULTI-PROCESS 221 SM, Gold PLUS


  • LCD display for quick intuitive setup whether you are an expert or beginner.
  • Digital control of the welding parameters based on the type of material, gas and wire diameter to be used.
  • Built-in polarity changeover feature for most common gas and gasless wires Lift TIG Arc start.
  • Professional wire feeding mechanism with 30mm rolls and sealed dust-proof motor
  • Double groove rolls replaceable without any tools.
  • ‘Energy Saving’ function to operate the power source cooling fan when necessary.
  • Spool Gun Compatible
  • Adjustable inductance, Burn Back and ARC Force control.
  • TIG Hot Start and Post-flow Gas Control.
  • Both 8 and 12-inch (203 and 305 mm) Wire Spool Size.
  • Metal face panel.
  • Comprehensive 3 Year Warranty
Product Name Canaweld Multi-Process 221SLM
Welding Processes MIG (GMAW), Flux Core (FCAW), TIG (GTAW), Stick (SMAW)
Input Voltage 120V or 230V Dual Input
Input Current 120V: 17.5 - 31.5A
230V: 9.8 - 29.8A
Welding Output Amps (120V) MIG: 10 - 140A
TIG: 10 - 140A
Stick: 10 - 110A
Welding Output Amps (230V) MIG: 10 - 210A
TIG: 10 - 200A
Stick: 10 - 200A
Output Current DC - CC/CV
Aluminum TIG
TIG Arc Starts Lift Tig (No High Frequency)
Spool Gun Ready ✔️ - Canaweld 150A Spool Gun
Dimensions 24.4" x 13.3 " x 16.1"
Weight 49 lb without spool
Warranty 3 Year Comprehensive, serviced by Canaweld

What's in the box?

  • Canaweld 221 SLM Multiprocess welding power source
  • Ground Clamp and Stick Electrode Holder (10 ft. Length)
  • MIG Torch and Consumable Set (10 ft. Length, Tweco Consumables)
  • Argon/Co2 MIG & TIG Regulator with 10 ft. Gas Hose
  • Drive Rolls: .030"-.040" Solid Wire (V Groove), .030-.035" Flux Cored Wire (Knurled)
  • 120/230V Adapter Plug

MIG/TIG Gold package also includes:

  • 200A Tig Torch with Momentary PushButton Control (26 Style, 12 ft. Length)
  • TIG Starter Kit and Tungsten Electrode Sample

MIG/TIG Gold PLUS package also includes:

  • Swivel Caster Package 

Full Product Data Sheet | MIG & TIG Torch Consumables