Miller MDX™ 250 MIG Gun – 250A Rated Output, Durable, and Optimized for Performance

The Miller MDX™ 250 MIG Gun delivers a 250A rated output with next-level advancements designed to improve comfort, reduce downtime, and boost productivity. Featuring a new ergonomic handle with rubber overmolding and a rear swivel, the MDX 250 offers welders exceptional control and reduced fatigue. An optimized wire-feed path ensures reliable performance, while simplified maintenance minimizes interruptions and training errors.

Key Features and Benefits

Durable, Comfortable Handle

• Rugged design with a rubber overmolded grip provides superior comfort and control.

• Ball-and-socket style rear swivel increases range of motion, helping welders stay productive longer.

Superior Wire-Feeding Performance

• Front-loading AccuLock™ liner is locked and concentrically aligned with the contact tip and power pin.

• Delivers consistent, reliable wire feed and reduces troubleshooting.

Error-Proof Liner Trimming

• No measuring required—simplifies setup and prevents weld quality issues caused by incorrect liner trimming.

Pulse Welding Capable

• Increased copper in the gun cable supports reliable operation with both CV (constant voltage) and pulse MIG welding applications.

Fewer Parts, More Accuracy

• Standardize consumables with AccuLock™ S Consumables, compatible across:

  • Miller MDX™-250 MIG Guns

  • Bernard® BTB MIG Guns

  • Clean Air™ Fume Extraction MIG Guns

• Simplifies inventory management and reduces replacement errors.

Long-Life Consumables

• Tapered mating surfaces between the AccuLock™ contact tip and diffuser create a secure, conductive connection.

• Maximizes electrical conductivity, reduces heat, and extends consumable life.

Why Choose the Miller MDX™ 250 MIG Gun?

With its 250A rated output, ergonomic handle, and innovative wire-feed design, the Miller MDX 250 sets a new standard in MIG welding guns. It’s engineered for professional welders who demand durability, comfort, and precision in every weld. Backed by Miller’s proven quality, this gun keeps you welding longer with fewer interruptions and cleaner, more consistent results.