Tweco 1240-1311 Robotic Mig Nozzle 600A 5/8 in Bore

Product Description

The TWECO 1240-1311 is a 3-piece robotic MIG welding nozzle assembly rated for light to medium duty applications up to 600 amps. The assembly consists of a nozzle housing machined from tellurium copper alloy bar for effective heat dissipation, a solid brass insert with internal threads machined to match the gas diffuser, and a G7 silicone insulator that provides electrical isolation between the nozzle and gas diffuser. The bore measures 5/8 inches in diameter with a straight ID bore at the front end to promote consistent shielding gas flow. The tip has a 5/32 inch protrusion and the nozzle features a bottle-shaped geometry. No additional insulator is required.

This nozzle assembly is designed for use with robotic and fixed automation MIG guns. The protruding tip configuration is suited for welding open root pipe and tight weld joints where the contact tip must be positioned deep into the joint. The straight bore ID allows thorough cleaning of the nozzle side walls, making it well suited for use with automated nozzle cleaning stations commonly integrated into robotic weld cells. The part number is roll-stamped on the outside surface for fast identification during changeovers.

Key Features

• 3-piece design: tellurium copper alloy housing, solid brass insert, G7 silicone insulator — no additional insulator required
• Tellurium copper alloy housing provides effective heat dissipation at sustained high amperages
• 5/8 inch bore with straight ID front end ensures consistent shielding gas flow and clean-out access
• 5/32 inch protruding tip geometry for access to tight weld joints and open root pipe
• Bottle-shaped geometry compatible with robotic nozzle cleaning stations
• Part number roll-stamped on exterior for quick visual identification

Compatibility

Designed to work with robotic and fixed automation MIG guns. Verify gas diffuser thread pattern matches the machined brass insert before installation.

Installation Notes

Installation is performed by welding equipment technicians or automation maintenance personnel responsible for robotic weld cell upkeep. Power down and de-energize the welding system before servicing front-end consumables. Ensure the gas diffuser threads are clean and undamaged before threading on the nozzle insert. Do not overtighten the assembly, as the brass insert and copper housing can be damaged by excess torque.

Technical Specifications

• Current Rating: 600 amps
• Bore Diameter: 5/8 inches
• Tip Protrusion: 5/32 inches
• Nozzle Length: 1 inch
• Housing Material: Tellurium copper alloy
• Insert Material: Solid brass
• Insulator Material: G7 silicone
• Weight: 0.23 pounds
• Sold As: Each

Standard Information

• Brand: TWECO
• Manufacturer Part Number: 1240-1311