cnc double-column grinding machine Application: cnc double-column grinding machines are mainly used in several fields including air condition compressor, bearing, gear, auto parts, hydraulic parts and other industries, besides, it can be used to grind some parts with difficult-to-cut materials. Rough and finish grinding for two parallel surfaces can be finished at the same time and the outer surface of parts can be any shape. The grinding machine is suitable for processing parts with high precision demands because of its excellent performance. the features of cnc double-column grinding machine: 1.Stability & Accuracy 2.High efficiency 3.Convenient operation 4.High reliability technical specifications: Item Parameters Unit Grindable work O.D. (max) φ140 (Or according to demand) mm Grindable work height 2-50 (Or according to demand) mm Maximum speed of grinding spindle 1450 rpm Grinding wheel/ Diameter CBN/305 mm Feed rate of wheelhead table 0.003-3.125 mm/s Chuck revolution speed 0-104 (Or according to demand) rpm Cycle time 10-15(According to workpiece features) s Grinding spindle power 11 kw Total power 26 kw Net weight 4 T Floor space(L×W×H) 1100×1500×2000 mm Work Precision Flatness ≤2 μm Parallelism ≤2 μm Dimension tolerance ≤2 μm Surface roughness ≤Ra0.4 μm