20402074 - Tweco 34 Neoprene Body Insulator for A-14 and A-38 Electrode Holders

Technical Specifications of the Tweco 2040-2074 Insulator

The Tweco 2040-2074 is a specialized replacement body insulator, identified as Item No. 34 in Tweco product diagrams. This component is engineered specifically for the A-Series electrode holders, including the A-14, A-14HD, and A-38HD models. As a critical safety component in Shielded Metal Arc Welding (SMAW) equipment, the body insulator serves as the primary dielectric barrier between the energized internal body of the electrode holder and the external environment, preventing accidental electrical contact and short circuits.

Manufactured from high-grade neoprene, this insulator offers a distinct advantage over rigid plastic alternatives. Neoprene is a synthetic rubber known for its chemical stability and flexibility over a wide temperature range. In the context of welding applications, this material choice provides excellent resistance to degradation from ozone, sunlight, and oxidation, as well as substantial resistance to oils and greases often found in industrial environments. Furthermore, the neoprene construction absorbs impact better than phenolic or fiberglass materials, reducing the likelihood of cracking when the holder is dropped or handled roughly.

The 2040-2074 insulator is designed to fit precisely over the metal body of the compatible Tweco holders, ensuring a snug fit that does not impede the mechanical operation of the lever or jaw assembly. Proper maintenance of the electrode holder requires regular inspection of this component. If the insulator shows signs of charring, cracking, or excessive wear, immediate replacement is mandated by safety standards to maintain the dielectric integrity of the tool. This product is supplied bagged, ensuring it remains clean and free of contaminants until installation.

By utilizing genuine Tweco replacement parts, operators ensure that the thermal and electrical ratings of their equipment are maintained. The 2040-2074 meets the rigorous OEM specifications set by Tweco, guaranteeing that the replacement part performs identically to the original factory-installed insulator.