10401050 - Tweco Spray Master MS410 450A MIG Gun 10ft .045-1/16

Heavy-Duty Industrial Performance

The Tweco Spray Master 450 Amp MIG Gun is engineered for the most demanding industrial welding environments. Designed specifically for high-amperage applications, including spray transfer modes, this air-cooled gun delivers a robust 450 amps at an 80% duty cycle using CO2 gas. Its construction prioritizes thermal efficiency and durability, making it a staple in heavy fabrication, structural steel, and manufacturing sectors where downtime is not an option.

Superior Cooling Technology

One of the defining characteristics of the Spray Master series is its advanced conductor tube design. The internal geometry is optimized to dissipate heat rapidly, keeping the front-end consumables and the handle significantly cooler than comparable models. This thermal management not only improves operator comfort but also extends the lifespan of contact tips and nozzles, reducing the frequency of consumable changes and lowering overall operational costs.

Ergonomics and Maintenance

The gun features an ergonomic handle that fits naturally in the hand, reducing grip force requirements and minimizing operator fatigue during extended welding sessions. The conductor tube is rotatable, allowing welders to adjust the angle of the neck to access difficult-to-reach joints without straining their wrists. Maintenance is streamlined with a simple, rugged design that allows for quick liner changes and easy access to the trigger mechanism. The 10-foot cable assembly is protected by a durable, abrasion-resistant jacket designed to withstand the rigors of a shop floor.

Compatibility and Specifications

This model (SKU 10401050) comes equipped with a standard Tweco-style rear connection, ensuring compatibility with a vast array of wire feeders and power sources that utilize the Tweco #4 adapter system. It is set up out of the box for .045" to 1/16" wire diameters, making it ready for heavy deposition welding immediately. The gun utilizes standard Tweco heavy-duty consumables (11-series tips, 54-series diffusers), ensuring that replacement parts are readily available and cost-effective.