Multimatic® 255 Multiprocess Welder Resources | MillerWelds
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Multimatic® 255 Owner Resources

Welcome to Your Ultimate Multimatic® 255 Guide

Your Multimatic 255 is one of the most versatile multiprocess welders in the industry. We created this page to help you get even more from your welder! Here's where you can find setup videos, tips and techniques, project ideas, accessories and much more.

Setup Videos

Quick Tips for Setting MIG Welding Parameters

Learn how to set parameters when MIG welding so you get the best-looking welds possible, every time.

Tips for Maintaining Your MIG Welder

Regular welder maintenance will keep your machine performing in top shape. Follow these tips for common welder maintenance.

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.

Tips and Techniques

Tips for Troubleshooting Common MIG Weld Defects

Welder MIG welding

Want To Improve Results When MIG Welding Stainless Steel?

Closeup of a stainless steel MIG weld

How Do Safety and Scheduled Maintenance Protect Your Assets?

Miller machine and two men

10 Welding Operation Mistakes and How To Solve Them

Welder welding

Welding Aluminum vs. Steel — Tips to Improve Your Results

MIG welding

Project Ideas

Tractor seat stool welding project

Work platform for your shop welding project
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Accessories

MDX™-250 MIG Welding Gun, 10ft, .035-.045 wire, AccuLock™ S Consumables 250A rated output. Next-level advancements include a comfortable new handle with rubber overmolding...
MDX-250 Gun with AccuLock S Right 1770042
MDX™-250 MIG Welding Gun, 12ft, .035-.045 wire, AccuLock™ S Consumables 250A rated output. Next-level advancements include a comfortable new handle with rubber overmolding...
MDX™-250 MIG Welding Gun, 15ft, .035-.045 wire, AccuLock™ S Consumables 250A rated output. Next-level advancements include a comfortable new handle with rubber overmolding...
MDX™-250 MIG Welding Gun, 10ft, .030-.035 wire, AccuLock™ MDX Consumables 250A rated output. Next-level advancements include a comfortable new handle with rubber overmolding...
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