The Tweco Spray Master MS350 (SKU: 1036-1635) is a premier air-cooled MIG gun designed for heavy-duty industrial fabrication. This specific configuration is engineered with a direct Miller-style rear connection, ensuring seamless integration with Miller wire feeders and power sources without the need for additional adapters. Rated at 350 Amps at an 80% duty cycle using CO2 gas, the Spray Master series is renowned for its ability to withstand high-heat applications and continuous welding environments found in shipyards, structural steel shops, and heavy equipment manufacturing.
This model comes pre-configured with a 10-foot cable assembly and is set up for 1/16-inch (1.6mm) welding wire, making it an ideal choice for heavy deposition applications where larger diameter wires are required. The gun utilizes Tweco's standard 11-Series contact tips and 52/54 series gas diffusers, which are widely available and cost-effective. The internal design features a simplified cable connection that minimizes electrical resistance and heat buildup, contributing to the gun's longevity and performance stability.
Maintenance and repair are critical factors in industrial settings, and the Spray Master excels in this regard. The gun is designed with fewer parts than comparable models, allowing for rapid field repairs. The conductor tube is constructed from heavy-wall copper alloy and is insulated with a high-temperature silicone sleeve, providing both electrical safety and impact resistance. The 10-foot length offers a practical balance, minimizing wire feeding friction—crucial for pushing 1/16" wire—while providing sufficient reach for bench work and jig welding.
Key Technical Specifications:
| Additional Information |
|---|
| Amps:350 |
| Cable Length:10 ft |
| Wire Size:1/16 |
| Connection Style:Miller |
| Cooling Method:Air Cooled |
| Duty Cycle:80% @ 350A |
| Series:Spray Master |
| Process Type:Flux-Cored (FCAW), MIG (GMAW) |
| Consumable Series:11 Series Tips, 52/54 Series Diffusers |
