Air cooled compact and heavy duty electric arc welding machine with constant current delivery by operating core magnetic shunt design Accurately rugged and reliable industrial & outdoor welding application without any electronic circuitry for better service existence Technical Specification Input voltage 220 15 Phase 1 Frequency 50 60 KVA Rating 8 Welding current range 50 220 Open current voltage 50 Welding current 60duty cycle: 220 Welding current 100 duty cycle 150 Suitable welding electrode size 2 5 and 3 15 Insulation F Cooling: Forced Air Output current regulation Step Type