The Miller MDX-100 MIG Gun (SKU: 1770029) is a premium 15-foot welding torch designed to deliver consistent performance in light fabrication and maintenance environments. Engineered as a direct replacement for the legacy M-100 gun, this unit is fully compatible with Miller's popular compact machines, including the Millermatic 141, 142, and 211, as well as the Multimatic 215 and 220 AC/DC units. It is rated for 100 amps at a 100% duty cycle when using CO2 shielding gas, ensuring it can handle sustained operation without overheating.
A standout feature of the MDX-100 is the integration of the AccuLock MDX consumable system. Unlike traditional systems that rely on set screws and manual measurements, the AccuLock liner is front-loading and locks securely at both ends of the gun. This design ensures perfect alignment and smooth wire delivery to the contact tip, significantly reducing the risk of birdnests, burnbacks, and erratic arcs. The tapered mating surfaces between the contact tip and gas diffuser maximize electrical conductivity, keeping heat generation low and extending consumable life.
Constructed with durability in mind, the gun cable features increased copper content to support reliable performance with both Constant Voltage (CV) and pulse waveforms. Whether you are running solid MIG wire or flux-cored wire, the MDX-100 provides the stability required for high-quality welds. The 15-foot length offers extended reach, making it ideal for working around large workpieces or in garage settings where machine mobility is limited.
Key Technical Specifications:
| Additional Information |
|---|
| Brand:Miller |
| Amperage:100 |
| Packaging Description:1 Per Ea |
| Duty Cycle:100% |
| Torch Type:MIG Gun |
| Cable Length:15 ft |
| Wire Diameter:0.030", 0.035" |
| Cooling Method:Air Cooled |
| Consumable Compatibility:AccuLock MDX |
| Compatible Models:Millermatic 141, Millermatic 142, Millermatic 211, Multimatic 215, Multimatic 220 |
