Spot welder system 4550A+AL-8 is special design for dent pulling (for steel and Aluminium car body) Feature of spot welder system 4550A+AL-8: (1)Comes with various kinds of accessories to suit different types of dents (2)Excellent current and fine timer control for quality repair (3)Copper transformer allows heavy duty cycle (4)With automatic touch welding (5)Ergonomic design (6)Fan cooling Product Specification for Spot wleder system AL-8: Input voltage(50/60Hz): 230V 1pH Inputpower(KVA): 1.6 Capacity(μF):66000 Spot time(ms):1-3 Stud welding rangeφ(mm):3-8 Max spot welding speed(PC/min): 20 Product Specification for Spot wleder system 4550A: Input voltage(50/60Hz): 230V 1pH Max power(KVA): 20 Output voltage(V): 5.2-9.1 Max spot welding current(A): 2500 Timing range(S): 0-1.2 Duty cycle(%): 40 Product package Spot wleder system 4550A: Net Weights: 172KG Gross Weights: 200KG Dimensions(MM): 1140*710*1030 Quantity for 20'GP: 30PCS Quantity for 40'GP: 65PCS Quantity for 40'HQ: 80PCS