Offered by j.K electricals the projection-welding machines are suitable for use in various applications. The spot cum projection welding machine passes a high current at a low voltage through the electrodes to the welding area. As the machine cycles put forth pressure on the metal, a joint is formed and coalescence takes place. All the parameters are exactly controlled: pressure by an air regulator, time control by an electronic circuit and current by transformer taps, which ensures a perfect welding joint. Features: six models between 30 kva to 200 kva; operational controls - air, water and electronics - are machine mounted for easy access, safe and simple maintenance; sturdy ram assembly high-speed operation; weld sequence controller, sophisticated timer with squeeze, weld hold and off timings with single/repeat cycle facility, weld timing being controlled by thyristorized circuit heat controllable from 5 per cent to 95 per cent.