Welding transformer from hitech industrial implements is made of 100% copper wound with crgo lamination and h class insulation. Crgo lamination provides high efficiency with less power consumption. The `h` class insulation is capable of withstanding up to 180° c to 210°c. These transformers comes with following features 3-phase stepless and soundless; 80/100 ocv moving coil type; oil cool smooth operation; very low cost, energy saver, low operating cost; volt/amps meter with ct coil; longer lasting; minimum current adjustment up to 5a can be provided; trouble free, remote on/off system; specially suited for heavy-duty as per ip 55; coated rutile electrodes, extra length of weld per electrode; starting, search current, high open circuit voltage; and ideally suited for smooth and aluminium tig welding.