Salient Features Suitable for Ferrous and Non Ferrous welding. 'F' Class Insulated Epoxy Sealed copper wound welding transformer. Welding head with pneumatic cylinder mounted directly on top. Pair of thyristors for liner heat contol from 5 to 95 %. Water Cooled electrode holders with Tungsten Copper Tips WADSON AZX for long time. Applications Switchgear Manufacturers - MCB, MCCB etc. Auto Electrical Parts. Bulb, Filament, Fuses. Small Sheet Metal Parts, Studs, Battery Packs, etc.