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10301102 - Tweco Classic 3 MIG Gun, 300A, 12ft, Tweco Connection

Packaging: pack of 1
$1,517.58/EA $1,108.60/pack of 1 only $1,108.60/EASave 27%

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SKU: TWE1030-1102 Categories: , ,

OVERVIEW

Industry Standard 300 Amp MIG Welding Gun

The Tweco Classic No. 3 MIG Gun (1030-1102) represents the benchmark for semi-automatic air-cooled MIG welding. For decades, the "Classic" series has been the preferred choice of metal fabricators, shipbuilders, and heavy equipment manufacturers due to its unparalleled reliability and ease of maintenance. Rated at 300 Amps at 60% duty cycle, this gun is engineered to handle medium to heavy-duty welding applications with ease, providing consistent arc performance in demanding industrial environments.

This model features a 12-foot cable assembly, offering a practical balance between reach and wire feedability. The cable is constructed with high-quality copper stranding and a durable outer jacket that resists cuts, abrasion, and heat. The rear connection is a standard Tweco style, making it compatible with a vast array of wire feeders and power sources that utilize the Tweco adapter system. The gun comes set up for .035" to .045" (0.9mm - 1.2mm) welding wire, covering the most common diameters used in structural steel fabrication.

Engineered for Durability and Maintenance

One of the defining characteristics of the Tweco Classic No. 3 is its fully repairable design. Unlike disposable light-duty guns, every component of the Classic 3—from the conductor tube to the trigger switch—can be replaced in the field. This modularity significantly lowers the total cost of ownership over the life of the product. The gun utilizes the widely available 14 Series contact tips, 24 Series gas nozzles, and 34 Series gas diffusers, ensuring that consumables are always easy to source.

Key Technical Specifications

  • Amperage Rating: 300 Amps (CO2 Gas), 225 Amps (Mixed Gas)
  • Duty Cycle: 60%
  • Cooling: Air Cooled
  • Cable Length: 12 Feet (3.6 Meters)
  • Handle Type: Classic Curved Handle
  • Connection Type: Tweco (Metal Plug)

Whether you are welding mild steel, stainless steel, or aluminum (with the appropriate liner), the Tweco Classic No. 3 delivers the robust performance required for high-productivity manufacturing.

Additional Information
Brand:Tweco
Amperage:300
Length:12 ft
Back End:Tweco
Wire Size:0.035" - 0.045"
Cooling Method:Air Cooled
Duty Cycle:60% @ 300A
Process Type:MIG (GMAW), Flux Cored (FCAW)
Handle Style:Classic Curved
Consumable Series:14 Series Tips, 24 Series Nozzles, 34 Series Diffusers
Packaging Description:pack of 1

INCLUDED

  • 1 x Tweco Classic No. 3 MIG Gun (300 Amp)
  • 1 x 12 ft. Cable Assembly
  • 1 x Tweco Rear Connection
  • Standard Consumables Setup (Contact Tip, Nozzle, Diffuser)
  • Liner (Installed)

APPLICATIONS

  • Structural Steel Fabrication
  • Heavy Equipment Manufacturing
  • Shipbuilding and Offshore
  • General Industrial Fabrication
  • Maintenance and Repair Operations (MRO)
  • Automotive Component Manufacturing

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, 24 Series gas nozzles, and 34 Series gas diffusers.

This specific model comes with a 12-foot (3.6 meter) cable assembly.

Yes, it comes pre-installed with a liner suitable for the wire size specified (typically .035-.045 inch).

It features a standard Tweco style rear connection (often referred to as a Tweco #4 connection on the feeder side).

Yes, but you will need to change the steel liner to a nylon or Teflon liner to prevent wire shaving and feeding issues.

Yes, the conductor tube (gooseneck) is rotatable and replaceable.

The 1030-1102 configuration is typically set up for .035" to .045" (0.9mm - 1.2mm) wire.