1. T7220B vertical boring machine is mainly used to bore high accurate holes of cylinder body and engine sleeve and other accurate holes.
2. 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.

Model

T7220B

T7220C

Max. boring diameter

Φ200 mm

Φ200 mm

Max. boring depth

500 mm

500 mm

Milling cutter head diamenter

-

250 mm

Max. milling area (L×W)

-

850×250 mm

Spindle speed range

53-840 r/min

Spindle feed range

0.05-0.20 mm/r

Spindle travel

710mm

Distance from spindle axis to carriage vertical plane

315mm

Table longitudinal travel

900mm

1100 mm

Table longitudinal feed speed

-

54,108 mm/min

Table longitudinal quick move speed

-

1500 mm/min

Table latitudinal travel

100 mm

Boring dimension accuracy

IT7

Milling dimension accuracy

-

IT8

Roundness

0.005

Cylindricity

0.01/300

Boring surface roughness

Ra1.6

Milling surface roughness

-

Ra1.6-3.2

Overall dimensions (L×W×H)

2210×1600×2340 mm

2610×1600×2350 mm

Packing dimensions (L×W×H)

1850×1840×2230 mm

N.W./G.W.

3300/3800 kg

3600/4000 kg