Digital Spot Welder 4650D is suitable for welding washers, special washers, wriggle wire, rivets, sheet patching, carbon rod heating and shrinking. (1)Microprocessor optimizes the welding parameters (2)Synergetic adjustments; Automatically sets the welding parameters according to the selected tool and the thickness of the work piece (3)Adjustable time and welding current. All customized settings made during the working programs are stored until the power is switched off (4)Equipped with suction slide hammer set for repairs of large dent areas without damaging the paint work (5)Self check when power is turned on with functions indicator lights (6)2 LED panels display for welding current and welding time (7)3 memory buttons to store customized settings (8)Copper transformer for heavy duty load (9)Overheat protection Product Specification of Digital spot welder 4650D: Input Voltage(50/60Hz): 400V 2ph Max Power(KVA): 13 Charge Voltage (V): 5.2-9.1 Max Welding Current (A): 4600 Timing Range(MIN): 0-1.2 Duty Cycle(%): 15%-75% Product package of Digital spot welder 4650D: Net Weights: 62KG Gross Weights: 67KG Dimension(MM): 990x 480 x990 Quantity for 20'GP: 96PCS Quantity for 40'GP: 215PCS Quantity for 40'HQ: 250PCS