Main characteristics of this machine tools:
★This machine tools is mainly used forgrinding of internal hole, stepped hole and internal tapered hole with small aperture.
★The guide rail of machine tools adopts double-V preload high-precision rolling guide rail with good rigidity.
★High-speed and high-power electric grinding wheel shaft, controlled by static frequency converter, stepless speed regulation.
★The feed mechanism adopts triple-roller system which is hydraulically controlled and has high precision.
Specification parameter list
| Model of machine tools | M215A | |
|---|---|---|
| Grinding aperture (mm) | φ5-φ50 | |
| Maximum grinding depth (mm) | 80 | |
| Swing diameter of work piece (mm) | Inside the shell (mm) | φ180 |
| Outside the shell (mm) | φ220 | |
| Maximum rotation angle of headstock (°) | 30。 | |
| Rotating speed of work piece (r/min) | 280、400、560、800 | |
| Rotating speed of grinding wheel (r/min) | 16000-24000/48000-60000 | |
| Total power of machine tools (kw) | 6.14 | |
| Power of work piece motor (kw) | 0.45/0.75 | |
| Power of grinding wheel motor (kw) | 1-4 | |
| Outline dimension of machine tools (mm) | 1580×1450×1560 | |
| Weight of machine tools (kg) | 1220 | |
| Power supply used by machine tools | 3N-50HZ 380V | |
| Working accuracy (according to standard specimen) | Roundness of internal hole（μm） | 3 |
| Cylindricity of internal hole（μm） | 3 | |
| Surface roughness of internal hole（μm） | Ra0.63 | |
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