... Double M Type Automatic A Force Spring Machine(The Butterfly Spring) The machine control system adopts imported from Japan PLC ... spring, high efficiency, good consistency of the product, save human cost, for the manufacturer, is the best equipment specialized production for double ... 380VRate power2.5KWGas supply pressure0.4-0.6MpaSpeed around the spring8-10 n/minTotal weightAbout 600kg Double M Type ...