Tweco 1250-1570 Mig Welding Nozzle 0.162 Bore 25CT

Product Description

The TWECO 1250-1570 is a 3-piece tapered MIG welding nozzle from the Weldskill 25CT series, designed for heavy-duty MIG welding applications up to 500 amperes. The nozzle features a 0.162-inch bore and measures 2.2 inches in length. The housing is cut and formed from 122 DHP copper alloy tubing for reliable conductivity and durability. The internal insert is machined from solid brass with threaded geometry matched to the conductor tube. A G7 silicone insulator provides the required electrical isolation between components. Licensed welding technicians and industrial maintenance professionals typically install and service this nozzle.

This nozzle fits TWECO 25-series MIG welding guns and is suited for heavy-duty welding environments where amperage demands reach up to 500 amps. The tapered 3-piece design eliminates the need for a separate external insulator, simplifying replacement in the field. The part number is roll-stamped on the outside surface for fast identification when pulling from a parts inventory. It is sold individually and is appropriate for fabrication shops, shipyards, structural steel operations, and other high-amperage MIG welding environments.

Key Features

• 3-piece construction: 122 DHP copper alloy housing, solid brass machined insert, G7 silicone insulator
• 0.162-inch bore diameter for precise wire and shielding gas control
• Tapered nozzle design eliminates the need for a separate external insulator
• Rated for heavy-duty welding applications up to 500 amperes
• Part number roll-stamped on the exterior for easy inventory identification
• Internal threads machined to match the conductor tube for secure fitment

Compatibility

Designed as an OEM-style replacement nozzle for TWECO Weldskill 25-series MIG welding guns used in heavy-duty applications up to 500 amperes.

Installation Notes

This nozzle is installed and replaced by qualified welding equipment technicians or maintenance personnel. Always disconnect and de-energize the welding power source before servicing the gun or replacing consumables. Allow the nozzle to cool completely before handling. Thread the nozzle insert onto the conductor tube by hand until snug; avoid over-tightening, which can damage the brass threads or insulator.

Technical Specifications

• Bore Diameter: 0.162 inches
• Nozzle Length: 2.2 inches
• Maximum Amperage: 500 amps
• Housing Material: 122 DHP copper alloy
• Insert Material: Solid brass
• Insulator Material: G7 silicone
• Package Weight: 0.44 pounds
• Package Length: 8.3 inches
• Package Width: 1.9 inches
• Package Height: 4.3 inches
• Sold As: Each
• UPC: 608246058191

Standard Information

• Brand: TWECO
• Manufacturer Part Number: 1250-1570