Tweco 1140-1126 Mig Contact Tip 0.068 in Flux Cored

Product Description

The TWECO 1140-1126 is a 14 Series flux-cored MIG contact tip designed for 0.068-inch wire with a 0.076-inch bore. It transfers welding current from the gun to the wire at the point of contact, directly affecting arc stability and weld quality. This tip is rated for standard use at 350 amps and is compatible with gasless flux-cored wire processes. It is installed by welding technicians and fabricators maintaining MIG gun consumables on active welding setups.

This contact tip is engineered for use with 200 to 400 amp MIG guns, specifically Tweco No. 2, No. 3, and No. 4 gun bodies. It suits flux-cored wire applications in both shop and field environments where gasless wire processes are run. The tip is interchangeable with other leading flux-cored gun platforms, making it a practical stock item for operations running multiple gun brands. Standard replacement intervals apply based on arc hours and wire feed volume.

Key Features

• 0.068-inch wire size with 0.076-inch bore for flux-cored wire feed
• Rated for standard use at 350 amps
• Compatible with 200 to 400 amp Tweco No. 2, No. 3, and No. 4 MIG guns
• Works with all gasless flux-cored wires
• Interchangeable with other leading flux-cored gun contact tips

Compatibility

Compatible with Tweco No. 2, No. 3, and No. 4 MIG guns rated 200 to 400 amps. Interchangeable with other leading flux-cored gun platforms accepting standard 14 Series tips.

Installation Notes

Contact tips are replaced by welding technicians as routine consumable maintenance. Always power down the welder and allow the gun neck to cool before removing a spent tip. Use the appropriate tip wrench to avoid damaging the gas diffuser or gun body threads. Inspect the diffuser and liner for wear whenever tips are changed.

Technical Specifications

• Wire Size: 0.068 inches
• Bore Diameter: 0.076 inches
• Amperage Rating: 350 amps (standard use)
• Compatible Gun Range: 200 to 400 amps
• Length: 1.5 inches
• Weight: 0.02 pounds
• Unit of Measure: Each

Standard Information

• Brand: TWECO
• Manufacturer Part Number: 1140-1126