Sailing Commercial (Tianjin) Co., Ltd.  

Product Name: 63kVA Resistance Welder AC Transformer with Welding Diode Model NO.: MF170-9 Type: Three-Phase Secondary Rectification Welder Welding Way: Seam Welding Style: Hanging Control: Welding Gun Cooling Way: Water Cooling Shipment Port: Tianjin Delivery: by Sea,by Air Payment: Tt Application: Medium or High Frequency Current: Super Large Trademark: SAILTON/STI Transport Package: Carton Box Specification: 400*300*300 Origin: China HS Code: 85043390 Product Description 63KVA Resistance Welder AC Transformer with Welding DiodeApplicationFor all kinds of intermediate frequency, power frequencyresistance welding machine.Such as automobile welding clamp,seam welding machine, mesh welding machine and so on.Brief introductionMedium-frequency (MF) transformers are a result of recent advances in resistance welding technology.They arepowered by a transistor inverter, supplying square wave AC 500 V @ 1000 Hz which is convertedby the MF transformer to a low voltage high current AC. This low voltage AC current is rectified to DC bya diode block built into the transformer.The higher operating frequency of an MF system allows efficientenergy conversion using a smaller and lighter transformer.Other benefits with MF transformers used inportable and robotic welding guns are:The reactance of the welding loop only limits the upslope and downslope of the welding current, while the peak welding current in limited only by the welding loop's resistance.The net result is again smaller transformer, especially when welding with large throat, high-impedance guns.MF welding is less demanding on the plant power system. The MF inverter draws balanced line current fromall 3 phases and operates at a high power factor (0.9).With MF transformers the peak welding current almostequals its RMS value, which helps to obtain quality welds with no splash and constantstrength even at lowerpressure.The high frequency permits much faster - 1000 times per second - process control, which again resultsin better weld quality.MF transformer DC Unit │Series MF170/130Welding Power Rectifier Assembly and welding diode isavailable!