The welder assembles the most three part of welding transformer,welding tongs and water cable as one, and the volume is reduced by75%, weight is reduced by 80% and 72.3% power savings. · The welderhas bearings turntable hanging device, can be mobile welding in X,Y, Z arbitrary 3D direction used by the balancer, it is movable andlight. · It has 14 different types, 400 species welding tongssupply for the choice of different materials, different thickness,different work places and different welding processes. · Weldingtransformer without freezing, not hot, suitable for the area ofdifferent climate. · Welder technical parameters not only cover allDN3 Series (sub-suspersion) mobile spot welder, and the performanceis better than DN3 Series welder. · The welder can be used matchingwith robots. · The safety performance of the welder is a leadinginternational standards and better performance than nationalstandards · It is widely used in the automobile, motorcycle,aviation, quilts, sheet metal structural components, medicalequipment, light industrial machinery, household appliances andother fields. And it can welding carbon steel sheet, coated steelsheet, stainless steel sheet, aluminum sheet metal.