| ITEM | Unit | Models |
| MK1321 | ||
| Spec.of sphere | in | 32-56 |
| Inner diameter of sphere | mm | DN800-1400 |
| Outer diameter of sphere | mm | SØ1200-2100 |
| Height of center | mm | 1100 |
| Distance between centers | mm | 1200-2100 |
| Shift motion of tailstock | mm | 1350 |
| Max.load-bearing on workbench | Kg | 20000 |
| Grinding wheel motor power | Kw | 7.5 |
| Grinding wheel spec | mm | 750x75x305 |
| Grinding wheel spindle speed range | Rpm | 900 |
| Grinding wheel line speed | m/s | 35 |
| Headstock motor power | Kw | 3.4 |
| Headstock spindle speed range | Rpm | 50 |
| X/Z axis travel | mm | 250/350 |
| X/Z axis travel | mm | 250/1200 |
| Headstock/tailstock center model | 公制100 | |
| Headstock/tailstock center model | Ra | ＜0.8 |
| Overall dimension(LxWxH） | M | 560x328x354cm |
| Weight of machine | T | 26 |
Ball Valve Grinding Machine, Ball grinding machine, Valve sphere grinding machine-KOPMC