
The Miller Millermatic 252 MIG Welder (907321) is an all-in-one MIG welding package designed for fabrication, manufacturing, and heavy-duty maintenance. Renowned for having the highest output in its class, this machine delivers a rated output of 250 Amps at 28 VDC with a 40% duty cycle, allowing operators to weld longer on high-end applications without interruption. Capable of welding mild steel from 22 gauge up to 1/2 inch in a single pass, the Millermatic 252 is a workhorse for professional shops requiring reliability and power.
Efficiency is at the core of the Millermatic 252's design. The large digital front panel features built-in digital timers that enable the operator to preset voltage and wire feed speed with precision. The interface includes a menu for standard run-in, pre/post flow, burnback, and spot/delay (stitch) timers, giving you complete control over the arc characteristics. One of the standout features is Auto Gun Detect™, which allows the operator to simply pull the trigger on the MIG gun, spool gun, or push/pull gun, and the machine automatically detects and recalls the correct voltage and wire feed speed settings for that specific tool. This eliminates the need for manual switching and reduces setup time significantly.
Feeding wire consistently is critical for quality welds, and the Millermatic 252 excels with its angled, dual-gear driven, cast aluminum drive system. This robust system features no-tool, quick-change reversible drive rolls and an easy-to-set scaled tension knob, ensuring smooth feeding for various wire types. For aluminum applications, the machine offers a Push-Pull Gun Direct Connect feature. You can directly connect a Spoolmate 200 Series spool gun or an XR push-pull gun without installing any extra modules, making it an excellent choice for aluminum fabrication. The Active Arc Stabilizer™ further enhances performance by minimizing weld cleanup and providing excellent starts that are proven superior to the competition.
The physical design of the Millermatic 252 addresses common shop challenges. The EZ-Change™ Low Cylinder Rack allows operators to easily roll gas cylinders on and off the rack, eliminating the back strain associated with lifting heavy tanks. Additionally, the Fan-On-Demand™ cooling system operates only when needed, reducing noise, energy consumption, and the amount of airborne contaminants pulled through the machine. With the EZ-Access™ Consumable Compartment, operators have fast access to contact tips and a convenient flip-down parameter chart to ensure settings are right the first time.
| Additional Information |
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| Brand:Miller |
| Voltage:208/230 V |
| Amperage:300 |
| Duty Cycle:40% |
| Weld Process:MIG (GMAW) |
| Packaging Description:1 of each |
| Process Type:MIG (GMAW), Flux Cored (FCAW) |
| Input Voltage / Phase:200(208)/230 V, 1-Phase, 60 Hz |
| Amperage Range:30 A - 300 A |
| Rated Output:200 A at 28 VDC, 60% duty cycle, 250 A at 28 VDC, 40% duty cycle |
| Wire Feed Speed:50 - 700 IPM (1.3 - 17.8 m/min) |
| Max Open Circuit Voltage:38 VDC |
| Material Thickness Capacity:Mild Steel: 22 ga. (0.9 mm) - 1/2 in. (13 mm), Aluminum: 14 ga. (1.9 mm) - 3/8 in. (9.5 mm) |
| Dimensions:Height: 30 in (762 mm), Width: 19 in (483 mm), Depth: 40 in (1016 mm) |
| Net Weight:207 lb (94 kg) |
| Warranty:3 Years - Miller True Blue Warranty |