Tweco 1640-1397 Mig Conductor Tube Velocity2

Product Description

The TWECO 1640-1397 is a Velocity2 conductor tube designed for MIG welding guns, providing a solid copper conductor path for consistent current transfer to the contact tip. This component is part of the Velocity2 system, which eliminates threaded contact tips and diffusers in favor of a tool-free tip change design. The tube measures approximately 2.3 inches in length and weighs 0.03 pounds. It is installed by welding technicians and MIG gun service professionals as part of routine gun maintenance or consumable upgrades on compatible Tweco gun platforms.

The 1640-1397 conductor tube is suited for MIG welding applications across Spray Master, Classic No. Series, and flexible Knucklehead gun platforms. It supports the full range of Velocity2 MIG consumables, including Medium Duty, Heavy Duty, and Extended Taper tip configurations. This makes it a practical replacement or upgrade component for shops running multiple gun types that share the Velocity2 consumable system.

Key Features

• Solid copper conductor path for reliable current transfer to the contact tip
• Threadless contact tip design allows tool-free tip changes with no diffusers required
• Compatible with Medium Duty, Heavy Duty, and Extended Taper Velocity2 MIG consumables
• Fits Spray Master, Classic No. Series, and Knucklehead flexible gun platforms
• Lightweight construction at 0.03 pounds for minimal added gun weight

Compatibility

Compatible with Spray Master, Classic No. Series, and Knucklehead flexible Tweco MIG welding guns. Designed for use with Medium Duty, Heavy Duty, and Extended Taper Velocity2 MIG consumables.

Installation Notes

Installation is performed by a qualified welding technician or MIG gun maintenance professional. Disconnect welding power and allow the gun to cool fully before removing or replacing conductor tube components. The Velocity2 system is designed for tool-free contact tip removal, but the conductor tube itself should be inspected for wear or spatter buildup before reinstallation. Follow the gun manufacturer's service documentation for proper seating and torque-free assembly procedures.

Technical Specifications

• Weight: 0.03 pounds
• Length: 2.3 inches
• Width: 0.6 inches
• Height: 0.6 inches
• Unit of Measure: Each
• Minimum Order Quantity: 5
• UPC: 608246434520

Standard Information

• Brand: TWECO
• Manufacturer Part Number: 1640-1397