Tweco 1150-1208 Mig Contact Tip 1/16 Inch 500A

Product Description

The TWECO 1150-1208 is a standard-duty MIG contact tip designed for heavy-duty welding applications up to 500 amps. It accommodates 1/16 inch wire and is machined from 122 DHP copper alloy tubing, which provides a consistent, smooth inside diameter with a tolerance of +/-0.003 inches. The threaded-style interface ensures solid contact with the gas diffuser when seated in the MIG gun. A thick-walled design functions as a heat sink, drawing heat away from the arc source during high-amperage continuous welding. Each tip is marked with the part number and wire diameter for fast identification on the job. Sold in packs of 25.

This contact tip is engineered for use with 200 to 500 amp Tweco No. 5 MIG guns and compatible MIG gun series. It suits heavy industrial and fabrication welding environments where sustained high-amperage output demands reliable electrical conductivity and extended consumable life. The twist-lock design allows the tip to lock in place without threaded engagement to the nozzle, and a quarter-turn clockwise rotation exposes a new wear point when the original wear point is reached, effectively doubling the service life of each tip.

Key Features

• Machined from 122 DHP copper alloy tubing for consistent inside diameter surface finish
• Inside diameter tolerance held to +/-0.003 inches for reliable wire feeding
• Thick-walled construction acts as a heat sink to conduct heat away from the arc source
• Twist-lock design increases contact surface area between tip and diffuser, improving electrical conductivity
• Quarter-turn rotation reveals a second wear point, doubling tip service life
• Each tip marked with part number and wire diameter for easy field identification

Compatibility

Designed for use with 200 to 500 amp Tweco No. 5 MIG guns and compatible MIG gun series that accept this contact tip thread and bore specification.

Installation Notes

Installation is performed by a qualified welding technician or maintenance professional. Power down the MIG welder and allow the gun to cool before replacing contact tips. Seat the tip firmly against the gas diffuser to ensure proper electrical contact before resuming welding operations. Follow the equipment manufacturer guidelines and applicable workplace safety codes when servicing MIG gun consumables.

Technical Specifications

• Wire Diameter: 1/16 inch
• Maximum Current Rating: 500 amps
• Inside Diameter Tolerance: +/-0.003 inches
• Material: 122 DHP copper alloy
• Style: Threaded, twist-lock
• Package Quantity: 25 per pack
• Weight: 0.05 pounds
• Height: 0.3 inches
• Width: 2 inches
• Length: 0.3 inches

Standard Information

• Brand: TWECO
• Manufacturer Part Number: 1150-1208