Tweco 1040-1605 Mig Gun 400A 25 Ft Euro-kwik

Product Description

The TWECO 1040-1605 is a Professional No. 4 Classic Series air-cooled MIG gun rated at 400 amps with a 60% duty cycle using CO2 gas. It accepts wire diameters from 0.035 to 0.045 inches and ships with a 25-foot lead cable featuring a Euro-Kwik style rear connection for fast hookup at the wire feeder. The oval-shaped handle is balanced to pivot at its center, reducing grip effort and operator fatigue during extended semi-automatic welding. A three-layer conductor tube construction — copper tube, silicon-resin glass insulator, and metal jacket — delivers a reliable current path from handle to contact tip. Licensed welders, fabricators, and maintenance welders in medium-to-heavy industrial environments install and operate this gun.

The 1040-1605 suits semi-automatic MIG welding in medium and heavy-duty fabrication settings. Typical applications include structural fabrication shops, maintenance and repair operations, farm and agricultural equipment work, and production welding environments. The 60-degree metal jacket conductor tube swivels a full 360 degrees around the handle, making it practical for welding in restricted or varied positions. The fully insulated Mig-Kwik connection enables quick connect and disconnect at the wire feeder, minimizing downtime during lead changes. Front-end consumables are interchangeable with the Tweco Spray Master series and Tweco Professional No. Series, reducing the number of spare parts a shop must stock.

Key Features

• 400 A rating at 60% duty cycle with CO2 gas for medium and heavy-duty fabrication
• Accepts 0.035 to 0.045 inch wire diameters with heavy-duty contact tips suited to high-heat applications
• Three-layer conductor tube construction (copper tube, silicon-resin glass insulator, metal jacket) for durability and consistent current transfer
• 60-degree metal jacket conductor tube swivels 360 degrees around the handle for multi-position welding
• Silver-plated trigger contacts with self-cleaning action on each engagement and disengagement cycle
• Steel spring strain relief supports the Cablehoz at the rear of the handle to minimize wire feed issues
• Split-half handle case allows field repair without additional connectors; two ball-point screws secure the Cablehoz and conductor tube

Compatibility

Front-end consumables are interchangeable with the Tweco Spray Master series and Tweco Professional No. Series. The Euro-Kwik rear connection is compatible with wire feeders that accept Euro-style MIG gun connections.

Installation Notes

Installation and setup should be performed by a qualified welding technician or professional familiar with semi-automatic MIG welding equipment. Power down and de-energize the wire feeder completely before connecting or disconnecting the gun lead. Ensure the Euro-Kwik connection is fully seated and the Mig-Kwik insulated connector is locked before initiating a weld. Follow applicable workplace safety standards and the wire feeder manufacturer guidelines for lead connection torque and gas line hookup.

Technical Specifications

• Amperage: 400 A
• Duty Cycle: 60% with CO2 gas
• Wire Diameter Range: 0.035 to 0.045 inches
• Lead Length: 25 feet
• Rear Connection Style: Euro-Kwik
• Conductor Tube Angle: 60 degrees
• Conductor Tube Rotation: 360 degrees
• Cooling Method: Air-cooled
• Package Weight: 16.7 pounds
• Package Length: 23.2 inches
• Package Width: 14.3 inches
• Package Height: 3.3 inches
• UPC: 608246047706

Standard Information

• Brand: TWECO
• Manufacturer Part Number: 1040-1605