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10301104 - Tweco Classic 3 MIG Gun 300A 20ft Tweco Connection

Packaging: pack of 1
$2,100.12/EA $1,331.45/pack of 1 only $1,331.45/EASave 37%

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SKU: TWE1030-1104 Categories: ,

OVERVIEW

Industrial Grade 300A MIG Welding Gun

The Tweco Classic No. 3 MIG Gun (Part Number 1030-1104) represents the gold standard in semi-automatic welding torches. Designed for heavy-duty industrial applications, this air-cooled gun is rated for 300 Amps at a 60% duty cycle when using CO2 shielding gas. It is engineered to withstand harsh manufacturing environments while delivering consistent arc performance.

This specific configuration features a 20-foot cable assembly, providing significant reach for welders working on large structures or in bays where the power source is stationary. The gun comes factory-ready for .035" to .045" (0.9mm - 1.2mm) welding wire, making it versatile for structural steel, fabrication, and repair work. The rear connection is the standard Tweco style, ensuring compatibility with a vast range of wire feeders and power sources that utilize the Tweco adapter system.

Maintenance is straightforward with the Classic No. 3. It utilizes the widely available 14 Series contact tips, 23 or 24 Series gas nozzles, and 34 Series gas diffusers. The simplified design allows for quick consumable changes and liner replacements, minimizing downtime. The metal-jacketed conductor tube adds rigidity and heat resistance, while the heavy-duty cable resists cuts and abrasion.

Key Technical Specifications:

  • Rated Output: 300 A @ 60% Duty Cycle (CO2)
  • Cooling: Air / Gas Cooled
  • Cable Length: 20 Feet (6.1 Meters)
  • Wire Diameter Range: .035" – .045"
  • Connection: Tweco Style Rear Connector
Additional Information
Amperage:300
Cable Length:20 ft
Wire Size:0.035", 0.045"
Connection Type:Tweco
Cooling Method:Air Cooled
Series:Classic No. 3
Duty Cycle:60% @ 300A
Process Type:MIG (GMAW), Flux Cored (FCAW)
Conductor Tube Angle:60 Degrees
Packaging Description:pack of 1

INCLUDED

  • 1 x Tweco Classic No. 3 MIG Gun (300A)
  • 1 x 20 ft Cable Assembly
  • 1 x Installed Liner (for .035-.045 wire)
  • 1 x Contact Tip (14 Series)
  • 1 x Nozzle (23 Series)
  • 1 x Diffuser (34 Series)
  • 1 x Tweco Rear Connection

APPLICATIONS

  • Structural Steel Fabrication
  • Heavy Equipment Manufacturing
  • Shipbuilding and Offshore
  • General Fabrication and Repair
  • Automotive and Trailer Manufacturing
  • Pipeline Welding

FAQ

The Tweco Classic No. 3 is rated at 300 Amps at 60% duty cycle when using CO2 gas.

It uses standard Tweco 14 Series contact tips, 23 or 24 Series nozzles, and 34 Series gas diffusers.

Yes, it comes pre-installed with a liner suitable for .035" to .045" wire.

This model (1030-1104) features a standard Tweco-style rear connection.

While possible with a nylon liner change, a 20ft gun is generally too long for reliable aluminum feeding. A spool gun or push-pull system is recommended for aluminum.

Yes, the conductor tube (neck) is rotatable and replaceable if damaged.

This specific SKU (1030-1104) has a 20-foot (6.1 meter) cable assembly.

Yes, the trigger switch is easily accessible and replaceable.