... SCR in the circuit,output current is steady... vertical press, air cooled 1. Used import SCR in ... ,control precision is high,welding is steady,wide application and can used for a long time;4. ... increase the spot speed;5.Used in the welding of such panel as carbon steel, low carbon ... .5+2.5Overall dimensionsmm880x420x1120880x420x1120Weightkg138160 AC spot welding machine (vertical press, air cooled)