| Model of machine tools |
M250A |
| Grinding aperture（mm） |
ф150-ф500（ф50-ф150 customized grinding head） |
| Maximum grinding depth (mm) |
450(the machine can be customized if it is deepened) |
| Swing diameter of work piece (mm) |
Inside the shell (mm) |
ф510 |
| Outside the shell (mm) |
ф725 |
| Maximum rotation angle of headstock（°） |
15°，20° |
| Rotating speed of work piece（r/min） |
28、38、57、160、212、320 |
| Rotating speed of grinding wheel（r/min） |
2450、4200 |
| Total power of machine tools （kw） |
8.92 |
| Power of work piece motor（kw） |
1.8/1.8/2.5 |
| Power of grinding wheel motor（kw） |
5.5 |
| Outline dimension of machine tools（mm） |
3860×1600×1850 |
| Weight of machine tools（kg） |
4550 |
| Power supply used by machine tools |
3N-50Hz 380v |
| Working accuracy (according to standard specimen) |
Roundness of internal hole（μm） |
5 |
| Cylindricity of internal hole（μm） |
5 |
| Surface roughness of internal hole（μm） |
Ra0.63 |
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