The Spring Water Cooled Spring End  Grinder with CNC control system researched by Wintime Machinery Co.,Ltd feed speed can be set keeping the end from being grinded over.High work efficiency.Servo motor and ball screw feed .Bar material installed easily.Bar material W.D is φ10—φ70mm&O.D is φ80—φ150mm&Spring Length is 1100mm .Max grinding wheel size is φ900mm(36``)and can be custom-designed . 2 pieces small springs or 4 pieces heavy duty springs are available at the same time. It can cast V-shaped grinding machine guide rail.Grinding accuracy is high and its working condition is cleaner and more environmental than the traditional machine`s through cooling water circulation use and filtration with iron fillings.