Capacitor discharge stud welder CD2000 stud diameter M3-M10,. welding speed: 10-40 pcs weight 14.5kg Capacitor discharge stud welder RSR88 stud diameter M3-M10welding speed: 10-40 pcs weight 14.5kg Widely used in stud welding of steel structure CD Stud welding machine weld 3-10mm stud bolt