This serial mode vertical boring machine can be widely used in boring automobile engine cylinders, cylinder sleeves of diesel engines and compressors,as well as various high precision holes boring. T: boring cylinder hole. Main specifications Model T170A T200A T250AMax. boring diameter Φ170mm Φ200mm Φ250mmMax. boring depth 400mm 500mm 500mmMax. drilling & reaming diameter Φ30mm Spindle speed 120- 860 r/min Feeding of the spindle 14-900 mm/min Rapid moving speed of the spindle 700 mm Spindle travel 1000 mm Distance between spindle end face and table 0-700 mm Distance between spindle axis and carriage vertical plane 375 mm Max longitudinal travel of working table 1500 mm Max cross travel of the working table 200 mm Working table size (W×L) (mm) 500x1250 500x1500 Quantity of T Slot 5 qua. Main motor 5.5 Kw Boring roughness Dimension Precison H7 Boring roughness Ra 2.5 Overall dimensions (L×W×H) 2600x1630x2300 mm Packing dimensions (L×W×H) 2250x1900x2280 mm N.W./G.W. (kg) 3300/3600 3500/3800