MDX Series Quick Specs Air-Cooled MIG (GMAW) Welding Guns Industrial Applications Auto body Fabrication Hobby Maintenance and repair MIG (GMAW) Pulsed MIG (GMAW-P) Flux-cored (FCAW) Duty Cycle 100% with CO2 gas, 60% with mixed gas Net Weight 2.9 –7.6 lb. (1.3 – 3.4 kg) The best welding gun is the one you never have to think about because it’s comfortable, it’s durable and it gets the job done. MDX Series MIG guns have been designed to be exactly that. The new ergonomic handle features overmolding for improved grip and a rear swivel strain relief for reduced welder fatigue. The gun’s AccuLock™ consumables with dual-locked, front-loading liner ensures smooth, consistent wire-feeding for reliable operation. Miller compatibility Superior wire feeding Durable, ergonomic handle Long-life consumables Pulse welding capable Trigger program select (MDX-250 EZ-Select only) AccuLock MDX Series consumables are available on MDX-100 and MDX-250 MIG guns. Trigger program select with LED indicators. See page 2 for details. AccuLock S Series consumables are only available on MDX-250 MIG guns. Warrantied for 90 days, parts only. Equipment Sales US and Canada An ITW Welding Company 1635 West Spencer Street P.O. Box 1079 Appleton, WI 54912-1079 USA Phone: 866-931-9730 FAX: 800-637-2315 International Phone: 920-735-4554 International FAX: 920-735-4125

Miller compatibility Superior AccuLock wire-feeding The front-loading liner is centered and locked at both ends of the gun (without the use of set screws) to ensure smooth wire delivery to the contact tip. Plus, error-proof liner trimming ensures accurate replacement every time for reduced burnbacks, bird-nests and erratic arc/wire chatter — no measuring required! Durable, ergonomic handle Long-life consumables Durable handle features rubber overmolding for improved grip and rear swivel to reduce welder fatigue. Tapered mating surfaces between the AccuLock contact tip and gas diffuser lock tips...

Specifications (Subject to change without notice.) Model Cable Length Rated Output Duty Cycle Standard Wire Size 100% with CO2 gas, 60% with mixed gas 100% with CO2 gas, 60% with mixed gas 100% with CO2 gas, 60% with mixed gas Standard Consumables Consumables Nozzle, 1/2 in. ID, Flush NS-M1200B (Brass) NS-M1200C (Copper) – Standard AccuLock™ MDX™ Series Consumables MDX™-100 MIG Gun Diffuser D-M100 Gasless Nozzle NS-MFLX Nozzle, 5/8 in. ID, Flush N-M5800C (Copper) AccuLock™ MDX™ Series Consumables MDX™-250/MDX™-250 EZ-Select™ MIG Guns Insulator 4623RM Nozzle, 1/2 in. ID, Flush N-M1200C (Copper)...

Consumables and Replacement Parts Note: Miller ® FasTip™ M-Series and Bernard Centerfire™ diffusers and consumables are NOT compatible with MDX Series guns. , AccuLock™ MDX Consumables Smaller consumables and components to access hard-to-reach weldments. AccuLock™ MDX Consumables Smaller consumables and components to access hard-to-reach weldments. MDX-100 with AccuLock MDX Consumable Kits 1880272 .023 in (0.6 mm) 1880273 .030 in (0.8 mm) 1880274 .035 in (0.9 mm) Kits include ten contact tips, one nozzle, one diffuser and a consumable storage box. MDX-250 with AccuLock MDX Consumable Kits 1880275...