Vertical Fine Boring Machine T7220B

Charicteristics

T7220B is mainly used to bore high accurate holes of cylinder body and engines sleeve and other
accurate holes. The table longitudinal and latitudinal moving device; The workpiece fast centering device;
Boring measuring device; Also provides optional digital readout for the table's longitudinal and cross moving accessories to serve the users.

     
 
Specifications

Model		T7220B	T7220C
Max. boring Diameter		F200mm	F200mm
Max. Boring Depth		500mm	500mm
Diameter of Milling Cutter Head		/	250mm (315mm is optional)
Max .Milling Area （L x W）		/	850x250mm (780x315mm)
Spindle Speed Range		53-840rev/min	53-840rev/min
Spindle Feed Range		0.05-0.20mm/rev	0.05-0.20mm/rev
Spindle Travel		710mm	710mm
Distance from Spindle Axis to Carriage Vertical plane		315mm	315mm
Table Longitudinal Travel		900mm	1100mm
Table Longitudinal feed speed		/	55、110mm/min
Table Longitudinal quick move speed		/	1500mm/min
Table cross travel		100mm	100mm
Machining accuracy	Dimension Accuracy	1T7	1T7
	Roundness	0.005	0.005
	Cylindricity	0.02/300	0.02/300
Boring roughness		Ra1.6	Ra1.6
Milling roughness		/	Ra1.6-3.2

 
Standard accessories:
Boring cutter, Chamfering cutter, Interhexagonal  spanner, Tool  Measuring  Device, Machine  oil  gun, Ground  bolt, Hexagonal  nut  and  washer. 
Boring measuring device, Φ150mm spindle

Optional accessories :    
Spindle 110mm, spindle 56mm ,spindle 75mm ,spindle 45mm,universal spindle,Quick Cylinder Fixture, V-type cylinder fixture