Features: High efficiency encapsulated water cooled transformer; Low loss low impedance secondary circuit to achieve higher welding currents; Digital microprocessor current feedback controller; Sturdy ram assembly permits high speed operation; Cut off control and indicators for abnormal rise in thyristor and transformer temperature; Input for cut off control and indicator for low air pressure sensing device; All accessories of tooling and electrodes for spot welding fitted as per job specifications Options; Several throat depth and throat gap configuration to suit a variety of hobs and tooling; Special fixtures for job clamping and welding can be provided; Special taps to suit different input voltages can be provided; Multi spot welding fixture with special electrodes can be provided.