Skip to Main Content
Canadian
Canadian owned and operated

CM250-3545-15 - 250A Tweco Style MIG Welding Gun - 15ft Cable - Miller/Lincoln Compatible

Packaging: 1 per each
$525.92/ea $375.66/1 per each only $375.66/eaSave 29%

Usually ships within 3-5 business days

OVERVIEW

Heavy-Duty Replacement MIG Gun

Upgrade your welding equipment with the CM250-3545-15, a premium 250-amp MIG gun designed to deliver consistent arc performance and durability. This gun is built to the "Tweco Style" standard, which is one of the most trusted and widely used configurations in the welding world. By adopting this standard, the gun ensures that you never have to hunt for proprietary parts; replacement contact tips, nozzles, and insulators are readily available at any welding supply store. This makes it an economical choice for businesses looking to keep consumable costs low without sacrificing quality.

The gun features a 15-foot cable assembly, offering the ideal balance between reach and wire feedability. Longer cables can sometimes cause feeding issues with softer wires, but 15 feet is the industry sweet spot for general fabrication, providing ample workspace coverage while maintaining smooth wire delivery. The internal liner is high-quality steel, pre-sized for .035" to .045" wires, ensuring low friction and consistent feeding. For welders needing to run smaller .023" wire, the liner can easily be swapped out. The power cable inside is robustly constructed to carry the full 250 amps (nominal) with minimal voltage drop, ensuring your arc remains hot and stable.

Built for the Welder

Comfort is key when welding for hours on end. The handle of the CM250 is designed with a curved grip that reduces wrist strain and provides excellent control over the puddle. The trigger switch is durable and designed for thousands of cycles. The connection end is available in configurations to fit Miller and Lincoln wire feeders, making it a versatile solution for shops with mixed fleets of equipment. The rugged connection pin ensures optimal conductivity and gas flow.

This gun is rated at 200 amps at 80% duty cycle with CO2, making it tougher than many standard OEM guns supplied with compact machines. It is an excellent upgrade for 200-250 amp class machines, providing better heat dissipation and longer consumable life. Whether you are welding heavy plate or thin sheet metal, this Tweco-style MIG gun provides the reliability and control needed for high-quality welds.

Additional Information
Amperage:250
Length:15 ft
Wire Size:0.035" - 0.045"
Brand:Tweco Style
Front End:Tweco
Back End:Miller, Lincoln
Item:Gooseneck
Torch Type:MIG Gun
Cooling Method:Air Cooled
Duty Cycle:80% @ 200A (CO2), 80% @ 160A (Mixed Gas)
Wire Diameter:0.023", 0.030", 0.035", 0.045"
Cable Length:15 ft
Consumable Compatibility:Tweco 11 Series Tips, Tweco 21 Series Nozzles
Packaging Description:1 per each

INCLUDED

  • 1 x 250 Amp MIG Gun (15ft Length)
  • 1 x Installed Liner (.035"-.045")
  • 1 x Contact Tip (Installed)
  • 1 x Nozzle (Installed)

APPLICATIONS

  • General Metal Fabrication
  • Automotive Body Repair
  • Farm and Agriculture Equipment Repair
  • Light Industrial Manufacturing
  • Maintenance and Repair Operations (MRO)
  • Structural Steel Welding

FAQ

This gun uses standard Tweco-style consumables. Specifically, it takes 11-series contact tips, 21-series nozzles, and 51-series gas diffusers.

The gun is rated at 200 Amps with CO2 gas at 80% duty cycle, and 160 Amps with mixed gas (Argon/CO2) at 80% duty cycle.

This gun is available with a Miller-style back end. Please check your machine's manual or current gun plug to ensure it matches the Miller style connection (often referred to as the Miller plug).

Yes, but you will need to replace the steel liner with a Teflon or polymer liner to prevent wire shaving and feeding issues with soft aluminum wire.

The gun is capable of feeding wire from .023" to .045". It comes pre-installed with a liner typically set for .035"-.045" wire.

15ft is generally acceptable for .030 steel wire. However, for very fine wires like .023, a shorter cable (10-12ft) is sometimes preferred to prevent kinking, though 15ft usually works well if the liner is in good condition.

Warranty terms depend on the specific manufacturer, but most aftermarket guns carry a warranty against manufacturing defects. Consumables are not covered.