94378344 - Arcair Tri-Arc Heavy Duty Upper & Lower Insulator Set (1 Inch)

Genuine Arcair Replacement Insulators for Tri-Arc Torches

The Arcair 94-378-344 HD Up&Lwr 1" Tri-Arc is a critical replacement component kit designed specifically for the Arcair Tri-Arc foundry gouging torch. This set includes both the upper and lower insulators, engineered to accommodate the heavy-duty demands of carbon arc gouging with electrodes up to 1 inch in diameter. In the high-amperage environment of a foundry, maintaining the electrical integrity of your torch is paramount. These insulators serve as the primary barrier between the electrically live components of the torch and the operator interface or grounded surfaces, preventing dangerous stray arcs and equipment damage.

Manufactured from high-performance, heat-resistant composite materials, these "HD" (Heavy Duty) insulators are built to withstand the intense thermal cycling and physical abuse typical of metal removal operations. Over time, the extreme heat and spatter generated during gouging can degrade standard insulators, leading to carbon tracking or cracking. Replacing them with genuine Arcair parts ensures that the torch maintains its original factory specifications for safety and performance. The kit is designed for a precise fit, eliminating the need for modifications during maintenance intervals.

This product is identified by the internal SKU AA94-378-344 and is essential for maintenance teams managing foundry equipment. Regular inspection and replacement of the upper and lower insulators can significantly extend the service life of the Tri-Arc torch body. Failure to replace compromised insulators can lead to catastrophic failure of the torch head or potential safety hazards for the welder. Trust in OEM Arcair parts to deliver the reliability required for continuous industrial operations.