Profile: Weltronic Systems is a manufacturer and supplier of an extensive range of welding machines, which are supplied to several industrial applications. Our range of machines are easy to operate, low in maintenance cost, energy efficient and durable. Our product range comprises stored energy welders, spot cum projection welding machines, carbon dioxide welding machines, manual spot welding machines, spot welding machines and projection welding machines. Manual spot welding machine passes high current through the electrodes towards the welding area at low voltage. When the machine cycles in a way it exerts pressure on the metal, than a joint gets formed coalescence occurs. Furthermore, the pressure is controlled by the air regulator, time is controlled by electronic circuit and current is controlled by transformer taps.