Cylinder Boring Machine is mainly use for boring large and deep holes , (such as:cylinder body of locomotive ,steamship,car)

The machine is mainly use for boring large and deep holes , (such as:cylinder body of locomotive ,steamship,car) also can milling the surface of the cylinder.

*Servo-motor control the table longitudinal move and the spindle up and down

Spindle’s  whirl use  variable-frequency motor  to adjust the speed ,so it’s can achieve of stepless speed change

*Electricity of the machine are designed for PLC and man-machine interaction

Model	Units	T7220B	T7220C	T7226	T7240
Max.boring diameter	mm	Φ200	Φ200	Φ260	Φ400
Max. boring depth	mm	500	500	500	750
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	53~840	50~1000
Spindle feed travel speed	mm/min	0.05~0.20	0.05~0.20	0.05~0.20	6~3000
Distance from spindle axis to carriagevertical plan	mm	315	315	315	500
Table longitudinal travel	mm	900	1100	900	1600
Table longitudinal travle speed	mm/min		55,110		6~3000
Table latirudinal travel	mm	100	100	100	300
Boring dimension accuracy		IT7	IT7	IT7	IT7
Milling dimension accuracy		-	IT8	-	IT8
Rundness	mm	0.005	0.005	0.005	0.008
Clingricity	mm	0.02/300	0.02/300	0.02/300	0.02
Boring roughness		Ra0.8-1.6	Ra0.6	Ra0.8-1.6	Ra1.6
Milling roughness		-	Ra1.6-Ra3.2	-	Ra1.6-Ra3.2
Overall dimensions	mm	2250*1588*2335	2610*1655*2345	2250*1588*2335	2281*2063*3140
N.W/G.W	kg	3300/3800	3800/4200	3300/3800	7500/8000

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