16401405 - Tweco 64H-45 Conductor Tube for Spray Master MIG Guns

Heavy-Duty Conductor Tube for Industrial MIG Welding

The Tweco 1640-1405 (Model 64H-45) is a premium replacement conductor tube designed specifically for the renowned Spray Master series of MIG guns. Engineered to withstand the rigors of high-amperage industrial welding, this component is essential for maintaining the structural integrity and electrical performance of your welding torch. It is compatible with Spray Master 350 and 450 Amp models, serving as the critical link between the gun handle and the consumables.

Constructed from high-grade copper alloys, the 1640-1405 ensures maximum electrical conductivity, minimizing voltage drop across the torch assembly. This efficiency is crucial for maintaining a stable arc, especially when welding thick materials at higher parameters. The tube features a standard 45-degree bend, which is the industry preference for general fabrication, offering a balanced ergonomic position that reduces operator wrist strain while providing adequate access to fillet welds and complex joints.

Durability is a key focus of the Spray Master line, and this conductor tube is no exception. It features a robust outer metal jacket that shields the internal gas and wire channels from physical damage, radiant heat, and weld spatter. Proper maintenance of the conductor tube, including regular liner changes and inspection for blockage, will prolong the life of the entire gun assembly. When the neck becomes bent, clogged, or electrically compromised, the Tweco 1640-1405 provides a direct OEM fit for immediate restoration of productivity.

Technical Specifications

• Part Number: 1640-1405
• Model: 64H-45
• Angle: 45 Degrees
• Compatibility: Tweco Spray Master 350A & 450A
• Construction: Heavy-duty copper with protective jacket