Main characteristics of this machine tools
This machine tools is mainly used for grinding 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 high-power electric grinding wheel spindle powered by static frequency converter is adopted, which is of low energy consumption and small noise. The feed mechanism adopts triple-roller system which is hydraulically controlled and has high precision. This machine is equipped with end face grinding device to ensure the perpendicularity of work piece internal hole and end face.
Specification parameter list
| Model of machine tools | MD215A | |
|---|---|---|
| Grinding aperture（mm） | ф5-ф50 | |
| Maximum grinding depth（mm） | 80 | |
| Swing diameter of work piece (mm) | Inside the shell | ф180 |
| Outside the shell | ф220 | |
| 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 | |
| Rotating speed of end grinder (r/min) | 1600 | |
| 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) | 1580x1450x1560 | |
| 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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