Column spot welding machine with movable arms, microprocessor digitally controlled.The digital, multifunction LCD control panel allows to operate: in EASY mode (setting of spot welding current and time); in EXPERT mode (setting of different spot welding parameters) storing up to 20 customised programmes.It operates both in continuous and pulse mode and grants optimum results on different kinds of steel. Adjustment of spot welding current (%), time (cycles), force of electrodes compression.Choice of various parameters of the spot welding cycle (approach, slope, welding and pause time and pulse number).Easy to read LCD display.Mechanical pedal control.Thermal protection with indicator.The model requires water cooling for electrodes and arms.