Sturdy, all welded steel plate fabrication, suitable braced and stiffened at points of stress, Transformer fitted inside the body and upper electrode arm mounted directly on to the body. Standardised construction to provide definite interchangeability of parts.

Transformer of special type, conforming only to international standards applicable to this class of Transformers. Water cooled having core of high grade electrical steel, primary and secondary coils of solid electroytic copper of ample section, heavy duty class 'F insulated and vacuum impregnated, suitable for withstanding continuously a temperature of 155° C.

Transformer Primary coil provided with taps brought out to tap change links for adjustment of welding current in 8 steps from 55-100% Tap change links enclosed behind machine door.

Upper ram of precision low inertia antifriction type provided with wear compensating features and actuated via a quick follow device by a heavy duty 2 way pneumatic cylinder, controlled by an electrically operated solenoid valve, Compressed air at 15 to 110 p.s.i. acting on the pneumatic cylinder provides the necessary electrode force.

By Air Pressure Regulating Valve provided on the Machine.

Circular Disc type Top and Bottom welding Wheels of diameter as specified, having easily detachable type bearings to facilitate replacement One pair of Welding Wheels supplied with the machine.

Variable speed, Reversible Gear Drive provided on Top/Bottom as required. Drive power from a built In 230 Volt, 1 Phase, PMDC Motor, through variable speed reduction gearing to provide smooth and stepless variation of the welding speed as specified.

Thyristrorised having latest technology. consisting of Sequence Timers, such as Squeeze. Weld-cool, Hold, Heat Control unit.