Boring Machine Milling Machine T7220B vertical fine boring machine is mainly used to bore high accurate holes of cylinder body and engine sleeve and other accurate holes. T7220B& T7220C is mainly used for fine boring high accurate holes of cylinder body and engine sleeve also for other accurate holes, it's can used for milling surface of cylinder. The machine can be used to boring, milling, drilling, reaming. Structure features T7220B 1. The table longitudinal and latitudinal moving device 2. The workpiece fast centering device 3. Boring measuring device 4. Also provides optional digital readout for the table's longi and lati moving accessories to serve the users T7220C 1. The table longitudinally and latitudinally moving devices 2. The workpiece fast centering device 3. Boring measuring device 4. The table longitudinal moving 5. Digital read-out device (user quest)Max.Boring Diameter 200mm Max.Boring Depth 500mm Spindle Speed Range 53-840rev/min Spindle Feed Range 0.05 -0.20mm /rev Spindle Travel 710mm Distance from Spindle Axis to Carriage Vertical plane 315mm Table Longitudinal Travel 90mm Table Latitu dinal Travel 100mm Machining accuracy Dimension accuracy 1T7 Roundness 0.005 Cylindricity 0.01/300 Surface roughness Ra1.6 Overall Dimensions ( LxWxH ) 1588x2210x 2340mm N.W/G.W. 3300x 3800kg Packing Dimensions ( LxWxH ) 1830x1730x 2620mm
