





Miller MDX 250 MIG Gun (177003X)
Select Size (Consumables):
Select Size (Consumables)
Quantity:

The Miller MDX 250 MIG gun has been redesigned with a few new features. The new ergonomic handle features and overmolding for improved grip and a rear swivel strain relief. The gun’s AccuLock consumables with dual-locked, front-loading liner ensures smooth, consistent wire feeding for reliable operation. This particular MIG gun utilizes Miller's MDX Acculock consumables, not Bernard S Lock consumables. Bernard S Lock consumables may be used, however you would need to swap out the diffuser, contact tip, and nozzle.
MDX 250 Features
• AccuLock Consumables
• Pulse Welding Capable (With Pulse Machine)
• 100% Duty Cycle @ 250A CO2 | 60% With Mixed Gas
Compatible With
• Millermatic 212, 252, and 255
• Multimatic 200 and 255
Included
• MDX 250 Gun (Chosen Length)
• 1/2" Flush Nozzle (M-1200C)
• 4 Contact Tips (2 Each of the Liner Chosen e.g. 1770038 Comes With (2) .035 and (2) .045)
• Owners Manual
Miller AccuLock MDX series consumables are designed to maximize wire feedability and simplify consumables replacement.
AccuLock MDX Features
Superior 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, birdnests and erratic arc/wire chatter.
Long-Life Consumables - Tapered mating surfaces between the AccuLock contact tip and gas diffuser lock tips in place for maximized electrical conductivity and longer tip life.
Threaded Nozzle - Stays tight during use and cleaning due to the steel retaining ring on the diffuser.
MDX 250 Features
• AccuLock Consumables
• Pulse Welding Capable (With Pulse Machine)
• 100% Duty Cycle @ 250A CO2 | 60% With Mixed Gas
Compatible With
• Millermatic 212, 252, and 255
• Multimatic 200 and 255
Included
• MDX 250 Gun (Chosen Length)
• 1/2" Flush Nozzle (M-1200C)
• 4 Contact Tips (2 Each of the Liner Chosen e.g. 1770038 Comes With (2) .035 and (2) .045)
• Owners Manual
Miller AccuLock MDX series consumables are designed to maximize wire feedability and simplify consumables replacement.
AccuLock MDX Features
Superior 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, birdnests and erratic arc/wire chatter.
Long-Life Consumables - Tapered mating surfaces between the AccuLock contact tip and gas diffuser lock tips in place for maximized electrical conductivity and longer tip life.
Threaded Nozzle - Stays tight during use and cleaning due to the steel retaining ring on the diffuser.
MPN: | MIL1770035 |
---|
MPN: MIL1770035
Brands you trust at prices you can afford!
Over the past decade, we've become the country's most trusted one-stop online welding shop. We've done it with the guaranteed lowest prices, the best customer service in the industry, and a commitment to providing the best online shopping experience for all welders.
------------------------------


From The Blog

Helmets
Is the Miller T94i-R PAPR System Worth It?
Let’s drop a hard truth: In the welding world, an experienced welder is worth more than 20 beginner welders. This is often directly reflected in the pay for welders. Some highly skilled welders can...

MIG
Everything You Should Know About the New Millermatic 211 PRO
The Millermatic 211 is dead; long live the Millermatic 211 PRO. That’s right, possibly the best-selling MIG machine in history now has a successor. In this article, we’ll cover everything you need ...

General
Miller’s Top Multi-Process Machines
More and more welders are replacing their old machines with multi-process welders each year. The cost- and space-saving benefits make them the ideal choice for anyone who uses more than one process...