53N85 - 53N85 Gas Lens Insulator for HW-90 TIG Torches (3-Pack)

Reliable Insulation for Precision TIG Welding

The ESAB 53N85 Gas Lens Insulator is a critical component for welders utilizing gas lens configurations on HW-90 and compatible TIG torches. Sold in a convenient pack of 3, this insulator is designed to sit between the gas lens collet body and the ceramic cup (nozzle), providing the necessary electrical isolation to prevent short circuits and arc instability. In high-precision TIG welding, the integrity of your torch's front end is paramount; a damaged or missing insulator can lead to gas leakage, turbulence, and ultimately, weld defects.

Manufactured to strict tolerances, the 53N85 insulator ensures a perfect seal. This is particularly important when using gas lenses, which are designed to smooth out gas flow for better coverage and stick-out. If the insulator does not seat correctly, air can be aspirated into the shield gas stream, causing porosity in the weld metal. This ESAB product is crafted from high-temperature resistant materials capable of withstanding the radiant heat generated near the arc zone without deforming or degrading prematurely.

For industrial procurement and shop managers, stocking these insulators in packs of three reduces downtime. TIG consumables are wear items, and the insulator is often overlooked until it cracks or burns. By maintaining a stock of the ESAB 53N85, you ensure that your welding operators can maintain peak performance with their HW-90 torches. Whether for aerospace, motorsports, or general fabrication, this small component plays a huge role in weld quality.

Key Technical Benefits

The use of a gas lens system, supported by the 53N85 insulator, allows for a longer tungsten stick-out. This improves visibility of the weld puddle and allows access into tighter joints. The insulator's dielectric properties are essential for safety and equipment longevity, preventing the high-frequency start current from tracking to the wrong components.