... circuit,output current is steady... vertical press, air cooled 1. Used import SCR in the circuit,output current is steady2. Strong ... precision is high,welding is steady,wide application and can used for a long time;4.Direct force structure,lubricate well ... thickness mild steelmm1.5+1.52.5+2.5Overall dimensionsmm880x420x1120880x420x1120Weightkg138160 AC spot welding machine (vertical press, air cooled)