21940 - ESAB PT-15/19 Plasma Torch Contact Ring Assembly

Precision Engineering for Industrial Plasma Systems

The ESAB 21940 Contact Ring Assembly is a critical component designed specifically for the maintenance and repair of ESAB PT-15 and PT-19 mechanized plasma cutting torches. In the realm of high-amperage plasma cutting, the integrity of the torch head assembly is paramount. This contact ring serves as a fundamental interface within the torch, ensuring that electrical current is transferred efficiently and that the consumable stack remains aligned under the thermal and mechanical stresses of operation.

Manufactured to ESAB's rigorous OEM specifications, this assembly guarantees a perfect fit that aftermarket alternatives often fail to replicate. The PT-15 and PT-19 systems are renowned for their durability in heavy industrial applications, often utilized in automated gantry systems for cutting thick plate. The contact ring assembly plays a vital role in maintaining the concentricity of the electrode and nozzle, which is directly correlated to the angularity and quality of the cut edge. A worn or damaged contact ring can lead to poor electrical contact, resulting in erratic arc behavior, increased consumable wear, or even catastrophic failure of the torch head.

Technicians and maintenance engineers understand that preventative maintenance is key to maximizing the lifespan of capital equipment. Replacing the contact ring assembly with the genuine ESAB 21940 part ensures that the cooling and electrical paths within the torch function as intended. This component is constructed from high-quality conductive materials capable of resisting oxidation and deformation at elevated temperatures. By choosing genuine ESAB parts, operators ensure compliance with the original design parameters of the cutting system, safeguarding both the equipment and the quality of the production output.

Whether you are refurbishing an older PT-15 system or maintaining a fleet of PT-19 torches, the 21940 Contact Ring Assembly is an essential spare part to have on hand. It represents the intersection of electrical precision and mechanical robustness required for modern industrial fabrication environments.