2.The machine researched by wintime machinery co., ltd is available for both left and right direction compression springs like heavy duty springs for railway .Taped or round bar is fed.Max spindle id 50 rpm and max spring size is |¦ì 60 (w.D) *|¦ì 500 ( o.D) * 1200 (length) mm and can be custom-designed. 3.All parameters like start, ¡épitch, ¡éspindle, ¡éunwinding are adjustable and set by computer . …