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CWICL0831 - CST 251 Compatible Spool Gun - 3 Meter Lead

Packaging: 1 of each
$413.22/ea $295.16/1 of each only $295.16/eaSave 29%

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OVERVIEW

Professional Grade Spool Gun for CST 251 Series

The CWI Welding Spool Gun for CST 251 is a high-performance accessory designed to expand the capabilities of your existing power source. Primarily utilized for aluminum welding applications, this spool gun addresses the inherent difficulties of feeding soft filler metals through standard MIG torch liners. By mounting a 4-inch (1lb or 2lb) spool directly onto the gun, the drive rolls are located only inches from the contact tip, providing a positive feed that prevents buckling and ensures a consistent deposition rate.

This model features a robust 3-meter cable assembly, offering a significant working radius that improves operational efficiency in garage and industrial settings. The gun is rated to handle the amperage output of the CST 251, ensuring it runs cool even during sustained use. The wire feed speed is typically controlled via the machine or a potentiometer on the gun (depending on specific machine configuration), allowing for fine-tuning at the workpiece. The construction utilizes high-quality impact-resistant polymers and copper alloy components to withstand the rigors of daily shop use.

Maintenance and consumable replacement are simplified with standard front-end parts. The nozzle, contact tip, and gas diffuser are easily accessible, minimizing downtime. For fabricators looking to weld aluminum, silicon bronze, or other soft alloys without investing in a push-pull system, this spool gun offers an economical and reliable alternative. It is an essential addition to any welder's toolkit who owns a CST 251 and requires versatility in material fabrication.

Technical Highlights

  • Cable Length: 3 Meters (approx. 10 ft) for optimal shop maneuverability.
  • Wire Compatibility: Optimized for 4043 and 5356 aluminum alloys.
  • Design: Compact canister design for balance and visibility.
  • Connection: Specific fitment for CST 251 power sources.
Additional Information
Length:10 ft
Wire Type:Aluminum
Process:MIG (GMAW)
Item:Spool Gun
Cable Length Metric:3 Meters
Compatible Model:CST 251
Spool Capacity:1 lb, 2 lb
Application:Aluminum Welding
Packaging Description:1 of each
Brand:N/A
Amperage:200
Front End:n/a
Back End:n/a

INCLUDED

  • 1 x Spool Gun Assembly for CST 251
  • 1 x 3 Meter (approx. 10 ft) Cable Lead
  • 1 x Contact Tip (Installed)
  • 1 x Gas Nozzle (Installed)
  • 1 x Spool Canister Cover

APPLICATIONS

  • Aluminum boat repair and fabrication
  • Automotive aluminum body work
  • Trailer manufacturing and repair
  • Signage fabrication
  • General light industrial aluminum welding
  • DIY and hobbyist projects requiring aluminum joining

FAQ

This spool gun is primarily designed for welding aluminum with the CST 251 machine, as it prevents the wire feeding issues common with standard MIG guns.

The cable is 3 meters long, which is approximately 10 feet.

It accepts standard 4-inch diameter spools, typically weighing 1lb or 2lb.

It is specifically listed for the CST 251. Compatibility with other models depends on the connector type and pin configuration.

Yes, it typically comes with one contact tip installed. Additional tips are sold separately.

While possible, it is generally unnecessary as standard MIG guns handle steel wire well. This gun is optimized for soft wires like aluminum.

It uses standard MIG consumables compatible with the gun's front end. Please check the manual for specific part numbers.

Most spool guns for this class of machine feature a wire speed adjustment knob on the handle or rely on the machine's settings.