| Model of machine tools | GK250 |
| The range of grinding diameter of hole(mm) | 100-500 |
| Maximum grinding depth (mm) | 500 |
| Swing diameter of work piece (mm) | Inside the shell(mm) | 510 |
| Outside the shell (mm) | 720 |
| The maximum stroke of feeding slide(mm) | 200 |
| The maximum stroke of workbench(mm) | 730 |
| Maximum rotation angle of lather head(° ) | 30° |
| Rotating speed of work piece (r/min) | 30-500stepless speed regulation |
| Rotating speed of grinding wheel (r/min) | 2000-10000(stepless speed regulation) |
| Motor power of workpiece(kw) | 4 |
| Motor power of grinding wheel(kw) | 5.5 |
| Motor power of X-axis servo motor(kw) | 2 |
| Motor power of Z-axis servo motor(kw) | 4 |
| The power of oil pressure motor (kw) | 0.55 |
| Cooling motor power (kw) | 0.09×2 |
| Rated power(kw) | 17.8 |
| Maximum speed of workbench m/min | 6 |
| Grinding speed m/min | 0-4 |
| Feed speed of grinding wheel m/min | 5 |
| X-axis minimum resolution mm | 0.001 |
| Z-axis minimum resolution (mm) | 0.001 |
| Maximum load capacity of workpiece (kg) | 300 |
| Flow of cooling pump(L/min) | 30 |
| The pressure of hydraulic system (MPa) | 0.4 |
| Flow of oil pump(L/min) | 25 |
| The weight of machine tools(kg) | 5600 |
| Machine overall dimension(mm) | 4000× 1900×2000 |
| Roundness of internal hole(um) | 3 |
Machining precision
| Cylindricity of internal hole(um) | 5 |
| Surface roughness of internal hole (um) | Ra0.63
|
| Roughness of end face(um) | Ra0.8
|
Complaint
