FN Series AC Features ★ welder roller welder welding points and vertical transverse weld two forms, for a variety of workpiece welding. ★ The adjustable stroke cylinder pressure, upper and lower electrodes to avoid collision damage. ★ clever reasonable internal structure, reduce the heat caused by welding performance weakened. ★ The Promise Ring bevel planetary gear differential, novel structure, smooth operation, low noise, low temperature, speed wide adaptability, the output torque, energy saving. ★ widely used in hardware, appliances, cars, made pots, irrigation system and other metal manufacturing and processing industries.