K1622-3 - Lincoln Electric Twist Mate TIG Torch Adapter Kit for PTA-26

Technical Overview: Lincoln K1622-3 Twist Mate Adapter

The Lincoln Electric K1622-3 is a specialized TIG torch adapter kit designed to facilitate the connection of PTA-26 series air-cooled TIG torches to Lincoln Electric power sources utilizing the Twist Mate receptacle system. This component is critical for operators using machines such as the Square Wave TIG 175, Precision TIG 225, Invertec V160-T, and Aspect 375, allowing for the integration of standard one-piece power cables into the machine's output terminals.

Gas-Through DINSE Connectivity

This adapter features a gas-through 35mm DINSE-style connection (marketed by Lincoln as Twist Mate). The design integrates the shielding gas path directly into the power connection, eliminating the need for an external gas hose to be routed to the machine's solenoid or gas outlet separately. The gas flows from the machine's internal solenoid, through the female receptacle, into this adapter, and down the one-piece power cable to the torch head. This streamlined configuration improves gas coverage consistency and reduces setup time.

Compatibility and Construction

Specifically engineered for the PTA-26 torch, which is a 200-amp air-cooled model, the K1622-3 handles the amperage requirements of medium-to-heavy duty TIG applications. The adapter body is constructed from high-conductivity brass encased in a durable, insulating rubber boot that protects the operator from electrical shock and shields the connection from shop debris and impact. The connector ensures a low-resistance electrical junction, preventing overheating at the terminal even during prolonged welding cycles at higher amperages.

Application Notes

This kit is intended solely for one-piece cable assemblies. It is not compatible with two-piece cable torches where the power cable and gas hose are separate lines. Operators attempting to adapt a PTA-9 or PTA-17 torch should refer to the K1622-1 adapter instead. The K1622-3 ensures that users of the PTA-26 can leverage the full portability and convenience of their Lincoln Electric inverters and precision TIG machines without modifying standard torch cables.