7620 Internal Thread Grinding Machine

7620 Internal Thread Grinding Machine  Technical Parameter:

Model	Unit	7620
Type		∮200X125
Max chuck diameter	mm	300
Max workpiece length	mm	200
Center height	mm	200
Thread diameter ground
V-typed	mm	25-200
Circular	mm	25-100
Max thread length ground
Conical	mm	80
Cylindrical	mm	125
Thread pitchground
Metric	mm	1-24
Inch	Teeth/inch	3/1〞- 20/1〞
Max helix angle of thread ground		Ra8〞  L12〞
Numbers of starts		1.2.3.4
Work rotation
In grinding	rpm	0.3-15    0.6 -30
In rapid return	rpm	60,100
Mac longitudinal transverse of table	mm	440
Cross movement of wheehead	mm	0-60
Graduation on cross feed hand wheel:coarse/fine	mm
Cross feed for 1 revolution of cross feed hand wheel	mm
Wheel spindle rotation	rpm	6000-24000(stepless)
Max wheel diameter	mm	100
Min wheel diameter	mm	20
Machine size(LXWXH)	mm	2120x1280x1720
Net weight	kg	4000