Category:MIG Welders

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Tool Species
MIG Welders

A tool species is a logical grouping of tools based on similarity of function, use, and safety.

Asylum Tool Species Info
To use any of the tools listed on this page, you are required to complete the testing program described here. You should get training or equivalent experience at the Asylum or elsewhere before testing.
RubricMIG Welding Rubric
TrainingTool Training: MIG Welders, or Metalworking Intensive
Testingby appointment
Operational Status
Operational Status
Maintenence Tickets

This document is an internal Artisan's Asylum training document and is provided "as is", to be used as a reference only. Use of this document for any purposes other than as reference material (i.e., for the purposes of training and testing users on tools or equipment by other commercial entities or individuals) is not advised. In no event shall the authors of this material, or Artisan's Asylum, Inc., be liable for any claim, damages, or other liability whether in action or contract, arising from, out of, or in connection with the use of the information in this document for training, testing, or on-going safe use of fabrication equipment. Please consult your own lawyers and subject matter experts if you are looking to develop your own safety curriculum for fabrication equipment operation. Tool operators are responsible for their own safety, including reading and understanding the owners manual for this equipment and all of the warnings it contains.


Personal Protective Equipment

  • Standard shop personal protective equipment (no unrestrained long hair, no flowing clothes, closed-toed shoes) are required
  • All clothing should be 100% cotton; no plastic blends are allowed.
  • Either wear long-sleeve shirts or the leather cape sleeves that are available in the shop.
  • Wear heavy-duty leather MIG welding gloves.
  • Wear a welding mask rated to at least shade 12.
  • Wear safety glasses underneath your welding helmet to guard against flying sparks.
  • If necessary, wear ear plugs to guard against sparks flying into your ears.


  • Make sure there are no puddles on floor in welding area, particularly around machines and foot pedals.
  • Turn on your welding bay ventilation to an appropriate amount of time with the switch located in Bay 1.
  • Make sure that the welding area is free of flammable materials.
  • Attach the ground clamp to bare metal on the workbench (make sure it's the MIG welder's ground clamp, not the TIG's).
  • Plug in the machine.
  • Turn on the machine.
  • Twist the valve on the top of the C25 tank three times, counterclockwise.
  • Hold the torch away from the workbench (more than 12 inches).
  • Depress torch trigger to start the gas cycle, then adjust the flow-meter or regulator - see individual machine pages for optimal settings.
  • Set the machine appropriately for the gauge of steel you will be welding, using the chart on the inside of the side panel.
  • Adjust welding screens to make sure no bystanders can be caught by arc-flash.
  • Adjust the placement of your seat to make sure your position is comfortable.
  • Check the gas nozzle and the contact tip to make sure they're free of slag, clean as necessary.

Safe Operation

  • Make sure no bare skin is ever in contact with the workbench or workpiece during welding or while your parts are hot.
  • Clip the wire electrode to within 1/4" of the end of the gas nozzle before starting a weld.
  • Clean the gas lens and contact tip as needed. Replace the contact tip if you're experiencing wire feed problems and it is absolutely necessary.
  • If switching to angle grinder operation, make sure your gloves will not be entangled in grinder operation.
  • Hold the torch as appropriate to your weld position and requirements.
  • Make sure your welding gloves are not in contact with the work or the gas nozzle during the weld.
  • Treat all work as if it is hot enough to burn you through your gloves.


  • Turn the valve on the C25 tank regulator counter clockwise, all the way open.
  • Turn off the machine.
  • Turn off the gas using the large valve on the cylinder.
  • Turn off the shop ventilation if nobody is using nearby bays.
  • Return all tools.
  • Disconnect the ground clamp, coil cords and store neatly.
  • Clean the workbench.
  • Sweep up after yourself.

Allowable Materials

  • No galvanized, plated, painted, oiled, rusted, or powder coated metals are allowed. At this time, Artisan's Asylum is not well set-up to MIG weld aluminum.
  • All metal cleaning should be done with Simple Green or other low-intensity cleaners. No parts may be cleaned with brake cleaner at any time.
  • All Artisan's Asylum welding stock (i.e. C25 gas tanks and electrode wire) is intended to be used with mild steel. Each welder should have a kit of replacement gas nozzles and contact tips.

First Aid Suggestions

  • If you burn yourself, immediately douse the area with cold (preferably running) water. Seconds count, to prevent significant burns.
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