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Spot Welding machines use a method called resistance spot welding to join overlapping metals between two electrodes using electrical resistance. Squeezing the workpieces between the electrodes applies pressure, and the passage of welding current through the resistive metals generates heat. This allows the materials to bind together and form a welding joint. Spot welding has its name as the current is applied precisely over a small area on the metal's surface. The resistance spot welding equipment can be in the form of stationary or bench-type welding machines, portable spot or robotic welding guns, and multi-head spot welding machines designed for different applications. Here at Dahching we have a wide range of spot welding machines and resistance welding equipment to choose from.