Vertical Fine Boring Machine (T7220B)


Vertical Fine Boring Machine (T7220B)
Vertical Fine Boring Machine (T7220B)

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)

Specification

 

Model
Unit
T7220B
T7220C
Max.boring diameter
mm
Φ200
Φ200
Max. boring depth
mm
500
500
Milling cutter-head diameter
mm
-
250 or 315
Max. Milling area(L*W)
mm
-
850*250 or 780*315
Spindle speed(stepless speed change for frequency conversion)
r/min
53~840
53~840
Spindle feed travel speed
mm/min
0.05~0.20
0.05~0.20
Distance from spindle axis to carriage vertical plan
mm
315
315
Table longitudinal travel
mm
900
1100
Table longitudinal travle speed
mm/min
 
55,110
Table latirudinal travel
mm
100
100
Boring dimensional accuracy
 
IT7
IT7
Milling dimensional accuracy
 
-
IT8
Roundness
mm
0.005
0.005
Cylindricity
mm
0.02/300
0.02/300
Boring roughness
 
Ra0.8-1.6
Ra0.6
Milling roughness
 
-
Ra1.6-Ra3.2
Overall dimensions
mm
2250*1588
*2335
2610*1655
*2345
N.W/G.W
kg
3300/3800
3800/4200

Vertical Fine Boring Machine (T7220B)

Vertical Fine Boring Machine (T7220B)
Vertical Fine Boring Machine (T7220B)