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PART GRIT. PART STEEL. ALL IN.

Millermatic® 
All-in-one MIG Welders

Built to Perform

For decades, the Millermatic line of MIG welders has been the battle-hardened choice for those who demand bulletproof reliability. With their advanced features and technologies, they simplify operations, increase productivity and help eliminate weld imperfections so you can focus on the one thing that matters — the job at hand. So whatever it is you need to accomplish, the Millermatic series makes it happen for you all day, every day. 

 

Compare all Millermatic® Machines

 

 

purpose built family

Millermatic® 255 

Reliable. Adaptable. Customizable. Portable.

The Millermatic® 255 MIG welding machine is a durable workhorse tailored to meet the needs of professional welders who demand precision, power and durability. Increase efficiency and productivity with every weld using its innovative features like Auto Set™, Program Mode, and Locks and Limits.

Product Details

Millermatic 255

Technology and Features

Rugged, dependable and tireless, this machine features a host of advanced features and technologies that allow you to weld all day every day.

Adaptable Icon

 

Adaptable

Welds up to 1/2-inch aluminum, stainless and mild steel and connects to 208 or 240V input power.

Versatile Icon

 

Versatile

Easily switch from MIG to pulsed MIG to flux-cored and back with its multiple MIG capabilities.

Easy to Understand Interface

 

Easy-to-understand Interface

7-inch color LCD display ensures proper machine setup and parameter selection.

Autoset Icon

 

Auto-Set™ Elite

Program mode offers predefined weld settings to increase ease of use for operators of all skill levels.

Other Millermatic Welding Products

Meet the other members of the hardest-working family in the MIG welding business.

Millermatic 142

Millermatic® 142

Product Details

Reliable, easy to set up and use.

Millermatic 211

Millermatic® 211

Product Details

Designed for thicker materials than the Millermatic 142 and can operate on 120V or 240V power.

Millermatic 252

Millermatic® 252

Product Details

Time tested reliability, simple controls with an intuitive set up.

Millermatic 355

Millermatic® 355

Product Details

Easy to use machine designed to increase efficiency and productivity for manufacturing and fabrication users.

Compare All Products

Millermatic®
Capabilities		 Millermatic® 142 Millermatic® 211 Millermatic® 252 Millermatic® 255 Millermatic® 355
WELDING PROCESS
MIG/Flux-cored Compatible with Millermatic 142 Compatible with Millermatic 211 Compatible with Millermatic 252 Compatible with Millermatic 255 Compatible with Millermatic 355
Pulsed MIG Not Compatible with Millermatic 142 Not Compatible with Millermatic 211 Not Compatible with Millermatic 252 Compatible with Millermatic 255 Compatible with Millermatic 355
WELDING CAPACITY
Mild and stainless steel 24 ga. min
3/16 in. max		 24 ga. min
3/8 in. max		 22 ga. min
1/2 in. max		 24 ga. min
1/2 in. max		 22 ga. min
1/2 in. max
ALUMINUM 18 ga. min
14 ga. max		 18 ga. min
3/8 in. max		 14 ga. min
3/8 in. max		 18 ga. min
1/2 in. max		 18 ga. min
1/2 in. max
POWER
Input Power (V) 110/115/120 120/240 208/240 or
240/460/575		 208/240 208,
220/230/240,
46 or 575
Amperage Range (A) 30 - 140 30 - 230 30 - 300 20 - 350 20 - 400
GENERATOR REQUIREMENT
Watts 5,000 7,000 N/A 12,000 19,000
 

Real Customers. Real Reviews.

Here’s what people think about how effective the Millermatic 255 makes them.

 

From the versatility to how user friendly it is to just how stable the weld puddle is, never had a machine weld so smooth. I love the machine and I don’t plan on switching anytime soon.

— Ben Hughes, The Roadster Shop

I would recommend the 255 to other fabrication shops, especially guys in our situation that are looking to do bigger projects, and need the ability, especially having this one machine... it offers the punch that I think any shop can use to start doing the heavy, heavy stuff.

— Jason Chiasson, Chiasson Smoke