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The Tweco Pullmaster PMP3333545 (SKU: 10271401) is a specialized 300 Amp air-cooled MIG gun designed specifically for the rigorous demands of aluminum welding. In industrial environments where soft aluminum wires (such as 4043 or 5356 series) are required, standard push-style guns often fail due to wire buckling and friction, especially at lengths greater than 10-12 feet. The Pullmaster series solves this by integrating a high-torque drive motor directly into the gun handle, working in synchronization with the wire feeder to maintain constant tension on the wire.
This specific configuration features an impressive 33-foot (10-meter) cable assembly, providing exceptional reach for welders working on large-scale projects such as boat hulls, truck trailers, and large signage structures. The '3545' designation in the model number indicates that this unit comes pre-configured with drive rolls and liners suitable for 0.035" (0.9mm) to 3/64" (1.2mm) wire diameters, the most common sizes for medium-to-heavy duty aluminum fabrication.
Technically, the gun is rated for 300 Amps at a 60% duty cycle using CO2 or mixed shielding gases. The air-cooled design simplifies setup by removing the need for a water cooler, making it a portable and robust solution for shop floors. The internal components are built to Tweco's legendary durability standards, ensuring long service life even in harsh industrial conditions. Maintenance personnel will appreciate the modular design, allowing for easy replacement of contact tips, gas diffusers, and drive rolls.
Key Technical Specifications:
| Additional Information |
|---|
| Amps:300 |
| Cable Length:33 ft |
| Wire Size Capacity:0.035", 3/64" (0.047") |
| Cooling Method:Air Cooled |
| Process Type:MIG (GMAW), Pulsed MIG |
| Gun Type:Push-Pull |
| Application:Aluminum Welding, Fabrication |
| Duty Cycle:60 |
