Tweco 1110-1202 Mig Contact Tip 0.035 in 25 Pack

Product Description

The TWECO 1110-1202 is an 11 Series Heavy Duty MIG contact tip designed for 0.035-inch wire and rated for use up to 200 amps in demanding welding applications. Machined from 122 DHP copper alloy tubing, the tip delivers a consistent, smooth inside diameter with a tolerance held to plus or minus 0.003 inches. The nominal bore ID measures 0.044 inches and the OD measures 0.283 inches, with an M6 x 1.0-6g thread size. At 1 inch in length, this tip uses a threaded style to ensure proper seating against the gas diffuser. Licensed welders and MIG welding technicians rely on this tip for heavy-duty continuous operation where heat management and arc consistency are critical.

This contact tip is rated for use in standard welding applications up to 200 amps and is compatible with Tweco No. 1 MIG guns rated 160 to 250 amps. The thick-walled copper alloy construction acts as a heat sink, drawing heat away from the arc source during extended welding cycles. The tip ships as a pack of 25, making it well-suited for shop environments and field service kits where consumable replenishment is routine. Each tip is marked with the part number and wire diameter for fast identification at the gun.

Key Features

• Machined from extruded or gun-drilled 122 DHP copper alloy for consistent inside diameter surface finish
• Inside diameter tolerance held to plus or minus 0.003 inches for reliable wire feed
• Twist-lock design locks in place when seated against the gas diffuser without relying on threads for retention
• Quarter-turn clockwise rotation exposes a new wear point, effectively doubling usable tip life
• Thick-walled design functions as a heat sink to reduce tip temperature during high-amperage welding
• Each tip marked with part number and wire diameter for quick field identification
• Sold as 25 per pack for high-volume shop and service use

Compatibility

Rated for use with Tweco No. 1 MIG guns operating in the 160 to 250 amp range. Fits slip-on or thread-on nozzle configurations. Consult the gun manufacturer documentation to confirm thread and bore compatibility before installation.

Installation Notes

Contact tip replacement is performed by a qualified welding technician. Disconnect and de-energize the MIG gun and allow the consumables to cool fully before handling. Seat the tip firmly against the gas diffuser and confirm the twist-lock is engaged before resuming operation. Do not overtighten, as this can distort the bore and affect wire feed consistency.