A question? Visit our contact page

Tweco® Professional No. 4 Classic Series 400 A MIG Gun with heavy-duty contact tip accommodates wires of size 0.035 - 0.045" and features oval shaped handle as well as silver plated trigger. Air-cooled MIG gun is ideal for semi-automatic welding applications and is suitable for medium/heavy-duty fabrication. 25' Lead cable offers good wire feedability and features Euro-Kwik style rear connection. MIG gun offers 60% duty cycle with CO2 gas and is fully tested. It is equipped with 60 deg metal jacket conductor tube that can swivel a full 360 deg around handle and offers quick replacement. It features fully insulated Mig-Kwik connection that allows quick connection as well as disconnection at the wire feeder. It is balanced to pivot at the center of the handle that reduces operator fatigue and features gun hanger at bottom for easy resting. It features steel spring strain relief that provides support to the Cablehoz® coming out the rear of handle to reduce wire feed issues. It features 2 ball-point screws to secure the Cablehoz® and conductor tube. It features enhanced direct plug capabilities and is easy to repair. Industry standard gun features lower inventory carrying costs. It features a patent-pending design that is easy to maneuver in various welding positions. It has 3-layered conductor tube constructions for durability and features enhanced performance.

Features

  • Improved performance with longer life consumables wide selection of front end consumables available, heavy-duty contact tips in high heat applications offered
  • Rated at 60% duty cycle using co2 gas
  • Enhanced direct plug capabilities
  • Lower inventory carrying costs: Interchangeable front end consumables between Tweco® Spray Master® series and Tweco® Professional No. Series
  • Industry standard for 40+ years, oval shaped handle reduces grip required to manipulate MIG gun position
  • Industry Standard
  • Field repairable: Split-half handle case provides access for ease of repair - easily repair Cablehoz®, no additional connectors required
  • Balanced to pivot at the center of the handle for ease of use in different welding positions, reduces operator fatigue
  • Durable and dependable for industrial applications, heavy-duty design, high impact resistant handle and components, three layer conductor tube construction (copper tube/silicon-resin glass insulator/metal jacket)
  • Trigger contains silver plated contacts with a self cleaning action every time the trigger is engaged and disengaged
  • Two (2) ball-point screws are used to secure the Cablehoz® and conductor tube in place
  • Mechanical connection of conductor tube and Cablehoz® within the handle providing excellent current path to the end of the contact tip
  • Gun hanger located at the bottom for ease of resting gun when not in use
  • Heavy-duty design for industrial application environments using special plastic composition for high impact crush-resistant handle
  • Steel spring strain relief provides support to the Cablehoz® coming out the rear of the handle to minimize wire feed issues
  • Metal jacket conductor tube

Accessories

  • Replacement Binder Posts and handle screws 2040-2124
  • Tweco Classic Standard Trigger Assembly 2040-2098
  • Tweco Classic Gun Hanger 2040-2156
  • Tweco Classic Replacement Handle Assembly 2040-2087
  • Current to Tweco Classic Conversion Kit 1 2040-2088
  • Tweco classic locking Trigger Assembly 2040-2102
  • Tweco Classic Dual Schedule Trigger Assembly 2040-2101
  • Tweco Classic Standard Trigger Blades 2040-2100

Applications

  • Production
  • Hobby/DIY
  • Farm
  • Shop Jobs
  • Garage
  • Maintenance And Repair Applications
  • Artistic Metal Working
  • Amperage: 400 A
  • Duty Cycle: 60% at CO2 gas
  • Cable Length: 25 ft
  • Wire Size: 0.035" - 0.045"
  • Cooling Method: Air Cooled
  • Connector Style: Euro-Kwik Style Connector
  • Physical Size: 14.3 x 23.2 x 3.3 in
  • Wire Type: Solid, Flux Cored Gas Shielded, Flux Cored Self-Shielded, Aluminum
  • Conductor Tube: Metal jacket, 60 deg swivel, 3-layer construction
  • Process: MIG (GMAW)
  • Country of Origin: Mexico
  • Trade Name: Tweco Professional Classic No. 4