Vertical Fine Boring-Milling Machine (T7220C)

Vertical Fine Boring-Milling Machine (T7220C)Vertical fine boring-milling machine-T7220C

T7220C is mainly used for fine boring high accurate hoils of cylinder boday and engine sleeve also for other accurate holes, it can used for milling surface of cylinder. The machine can be used to boring, milling, drilling and reaming.
The table longitudinally and cross moving devices.
The workpiece fast centering device.
Boring measuring device
The table longitudinal moving
Digital read-out device

ModelT7220BT7220C
Max.   boring  DiameterF200mmF200mm
Max.   Boring  Depth500mm500mm
Diameter  of  Milling  Cutter  Head/250mm  (315mm  is  optional)
Max  . Milling  Area  L  x  W/850x250mm  (780x315mm)
Spindle  Speed  Range53-840rev/min53-840rev/min
Spindle  Feed  Range0.05-0.20mm/rev0.05-0.20mm/rev
Spindle  Travel710mm710mm
Distance  from  Spindle  Axis  to  Carriage  Vertical  plane315mm315mm
Table  Longitudinal  Travel900mm1100mm
Table  Longitudinal  feed  speed/55, 110mm/min
Table  Longitudinal  quick  move  speed            /1500mm/min
  Table  cross  travel100mm100mm
Machining  accuracy
 
Dimension  Accuracy1T71T7
Roundness0.0050.005
Cylindricity0.02/3000.02/300
Boring  roughnessRa1.6Ra1.6
Milling  roughness/Ra1.6-3.2

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