MIG Guns | MillerWelds

How to Change Nozzle, Tip, Diffuser, and Liner with Set Screw for MDX™ MIG Guns

Follow some simple step-by-step instructions to change AccuLock™ consumables on MDX™ MIG guns and gain an optimal wire feeding path.

How to Reinstall a Trimmed Liner for MDX™ MIG Guns with Set Screw Power Pin Cap

When the power pin cap is removed from a MDX™ MIG gun, the liner can retract and appear too short to lock into place. Learn how to reinstall the liner.

What’s Next: Faster Multiprocess Welding With Josh Welton

Brown Dog Welding owner Josh Welton quickly switches between welding processes with his Miller® MDX™-250 EZ-Select™ MIG Gun.

What’s Next: Building Off-Road Vehicles With The MDX™-100

UTV Wolfpack creates the off-road racing industry’s most innovative suspension systems and cages with the MDX™-100 MIG gun.

What’s Next: The MDX™-100 MIG Gun Impresses Ron Covell

See why master metalworker Ron Covell is impressed by the results he gets with the Miller® MDX-100 MIG gun.

What’s Next: RMD Garage Shows Off MDX™-250 Gun

Next-level ergonomic features are why Eddie Luv of RMD Garage calls the Miller™ MDX-250 MIG gun his “new baby.”

How to Reinstall a Trimmed Liner in Your MDX™ MIG Gun

Learn how to reinstall a trimmed liner in your MDX-100 or MDX-250 MIG gun.

How to Replace Your MDX™ MIG Gun’s Handle, Switch and Neck

Learn how to replace the handle, switch or neck on your MDX-100 or MDX-250 MIG gun.

How to Change Consumables on Your MDX™ MIG Gun

Learn how to change the nozzle, contact tip, gas diffuser or liner on your MDX-100 or MDX-250 MIG gun.

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MDX MIG Guns with Set Screw Power Pin Cap Installation Training Videos