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2-2845 - Thermal Arc PWM-300 MIG Gun 300A 12.5ft

Packaging: pack of 1
$10,511.18/EA $6,522.90/pack of 1 only $6,522.90/EASave 38%

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SKU: TA2-2845 Categories: ,

OVERVIEW

Heavy-Duty 300A MIG Welding Gun

The Thermal Arc PWM-300 MIG Gun (SKU: 2-2845) is a robust air-cooled torch designed for medium to heavy industrial fabrication. Engineered by Thermal Dynamics (TDC), this gun is rated for 300 Amps at a 60% duty cycle, making it suitable for sustained welding operations on mild steel, stainless steel, and aluminum. The assembly features a 12.5-foot (approx. 3.8 meters) cable, providing adequate reach for bench work and structural fabrication without compromising wire feed smoothness.

This model is specifically designed to integrate with Thermal Arc power sources, ensuring a secure connection and optimal electrical conductivity. It utilizes industry-standard Tweco-style consumables (contact tips, nozzles, and diffusers), which simplifies inventory management and reduces maintenance costs. The gun's construction includes a durable outer jacket that resists abrasion and heat, protecting the internal power cable and liner. The ergonomic handle is shaped to fit comfortably in the operator's hand, featuring a responsive trigger mechanism that withstands repetitive use in demanding environments.

Technicians and procurement specialists should note that the PWM-300 is designed for versatility, capable of running wire diameters typically ranging from 0.035" to 1/16" depending on the liner and contact tip configuration. The backend connection is tailored for Thermal Arc feeders, often utilizing a Tweco #4 style or specific adapter configuration standard to the brand's 300-class machines.

Additional Information
Amperage:300
Cable Length:12.5 ft
Cooling Method:Air Cooled
Process:MIG (GMAW), Flux-Cored Arc Welding (FCAW)
Duty Cycle:60% @ 300A
Wire Diameter Capacity:0.035" - 1/16"
Connection Type:Tweco Style
Packaging Description:pack of 1

INCLUDED

  • 1 x PWM-300 MIG Gun (300 Amp)
  • 1 x 12.5 ft Cable Assembly
  • 1 x Standard Contact Tip
  • 1 x Standard Nozzle

APPLICATIONS

  • General Industrial Fabrication
  • Automotive Repair and Customization
  • Structural Steel Welding
  • Heavy Equipment Repair
  • Maintenance and Repair Operations (MRO)
  • Shipbuilding and Marine Repair

FAQ

The PWM-300 is rated for 300 Amps at a 60% duty cycle using CO2 gas.

It typically uses standard Tweco-style consumables, such as 14-series contact tips and 24-series nozzles.

The cable length is 12.5 feet (approximately 3.8 meters).

The PWM-300 is an air-cooled MIG gun.

It is generally set up for 0.035" to 0.045" wire but can handle up to 1/16" with the correct liner and tip.

Yes, this is the OEM replacement gun for many Thermal Arc Fabricator 250, 281, and 300 series machines. Always check your machine's manual to confirm the part number 2-2845.

Yes, the gun typically comes pre-assembled with a liner suitable for standard steel wire.

Yes, but you will need to change the steel liner to a Teflon or nylon liner and use aluminum-specific contact tips to prevent feeding issues.