169594 - Miller M-25 MIG Gun 10ft 250A Replacement Torch

Industrial Standard Miller M-25 MIGmatic™ Welding Gun

The Miller M-25 MIGmatic™ Welding Gun (SKU: 169594) represents the pinnacle of air-cooled MIG torch engineering for the 250-amp class. Designed specifically for heavy-duty industrial environments, this 10-foot assembly is engineered to withstand the rigors of daily fabrication while providing superior arc consistency and wire feeding performance. As an OEM replacement or upgrade for Miller wire feeders, the M-25 integrates seamlessly with the Millermatic series, ensuring that operators maintain the high-performance standards expected from Miller Electric equipment.

Robust Construction and Ergonomics

The core of the M-25's reliability lies in its unibody handle construction. Unlike multi-piece handles that can loosen or crack over time, the single-piece design offers exceptional structural integrity and impact resistance. The handle is ergonomically contoured to reduce operator fatigue during long weld cycles, providing a comfortable grip that enhances torch control. The cable assembly is protected by a heavy-duty steel spring strain relief at the feeder end and a durable support at the handle, significantly reducing the risk of liner kinking and extending the service life of the power cable.

Performance and Duty Cycle

Rated at 250 Amps at 100% duty cycle when using CO2 shielding gas, the M-25 is a workhorse for continuous welding operations. When utilizing mixed gases, the gun maintains a robust 60% duty cycle at 250 Amps, making it suitable for a wide variety of structural steel and fabrication applications. The gun features a rotatable gooseneck, allowing welders to adjust the angle of the neck to access difficult-to-reach joints without straining their wrists or compromising the wire feed path.

Consumable Compatibility

Maintenance and consumable management are simplified with the M-Series consumable system. The M-25 utilizes standard Miller contact tips, nozzles, and gas diffusers, which are widely available and designed for efficient heat dissipation. The three-piece nozzle construction—comprising the nozzle, insulator, and contact tip adapter—allows for cost-effective replacement of individual components rather than the entire front-end assembly. This gun comes factory-equipped with a liner setup for .030 to .035 inch (0.8 - 0.9 mm) wire, but can easily accommodate wire diameters ranging from .023 to .045 inches with the appropriate liner change.