| Project | GP20-35CNC | GP20-50CNC | GP20-75CNC |
| Direct Feed Straight Cut | Direct Feed Straight Cut | Straight line cutting type |
| Processing Capacity | Maximum turning diameter of the worktable | Φ220mm |
| Processing capacity | Center distance between two apical centers | 350mm | 500mm | 750mm |
| Maximum Grinding Diameter | Φ200mm |
| Center Height | 125mm |
| Maximum load of two cores | 80kg |
| Grinding Wheel Size | Diameter x Width x Inner Hole Diameter | 500x50x203mm |
| Grinding wheel size | Grinding Wheel RPMs | 1720/2290rpm |
| Grinding Wheel Linear Speed | 45/60m/s |
| Grinding Wheel Bracket (X-axis) | Rapid Feed Speed | 12M/min |
| Grinding wheel holder (X-axis) | Feed Angle | 90° |
| Minimum unit feed | 0.001mm |
| Feed stroke | 245mm |
| Spindle Head Mount (Servo) | Apical taper | MT4 |
| Spindle Speed (Apical Taper) | 20～600rpm |
| Spindle Type | Set Core or Floating Core |
| Tailstock (Air Floating) | Apical taper | MT4 |
| Tailstock (air flotation) | Action Stroke | 35mm |
| Spindle Type | Fixed or adjustable travel |
| Workbench (Z-axis) | Rapid feed rate | 12M/min |
| Workbench (Z-axis) | Table Stroke | 400mm | 550mm | 800mm |
| Minimum unit feed | 0.001mm |
| Rotation Angle | ±7° |
| Motor | Grinding Wheel Spindle Motor | 7.5KW |
| Spindle Head Rest (Servo) Motor | 6Nm |
| Grinding Wheel Holder (X-axis) (Servo) Motor | 15Nm |
| Workbench (Z-axis) (servo) motor | 15Nm | 18.6Nm |
| Grinding Fluid Pump | 1.1KW |
| Hydraulic Pump | 0.4KW |
| Sliding Surface Lubrication Pump | 0.06KW |
| Grinding Wheel Shaft Lubrication Pump | 0.75KW |
| Box volume | Grinding Fluid Tank | 150L |
| Box volume | Hydraulic Oil Reservoir | 20L |
| Grinding Wheel Shaft Lubrication Box | 80L |
| Sliding Surface Lubrication Box | 5L |
| Machine Tool Precision | Processing Roundness | ≤0.001mm |
| Machine tool accuracy | Dimensional Consistencynal consistency） | ≤0.004mm |
| Surface Roughness | Ra0.2μm (vertical grinding), Ra0.32μm (cutting grinding) |
| X-axis Repeated Positioning Accuracyning accuracy） | ≤0.0015mm |
| Z-axis Repeated Positioning Accuracyning accuracy） | ≤0.0025mm |
| Executive Standards | JB/T9914-1999 |
