MK8480 Rolling Grinding Machine Manufacturer for High Precision Roller Machining CNC Automatic Roll Grinder
| Max. diameter to be ground (Grinding wheel, OD 750mm) | 800 mm |
| Min. diameter to be ground (Grinding wheel, OD 750mm) | 120 mm |
| Max. length to be ground | 5000 mm |
| Max. weight of workpiece to be ground | 5000 Kg |
| Workpiece speed | 6 to 60 RPM |
| Dimension of grinding wheel | 750×70×305 mm |
| Speed of grinding wheel | 35 m/s |
| Cross stroke of grinding wheel | 380 mm |
| Cross rapid traverse of grinding wheel | 400 mm/min |
| Crown in radius direction | ≤ 1.5 mm |
| Rapid speed of saddle in Z-axis | 20 – 2500 mm/min |
| Continual cross feed speed | 0.002 – 1.2 mm/min |
| Periodical cross feed | 0.003 – 0.12 mm/travel |
| Measuring range of measuring system | 90 – 820 mm/min |
| Stroke of tailstock quill | 300 mm |
| Steady Rest | 120 – 300 – 420 mm |
| Flow of coolant system | 250 L/min |
| Motor for workpiece rotation | 45KW |
| Motor for the grinding wheel | 45KW |
| Motor for motion of saddle in Z-axis | 41 Nm |
| Feeding motor for wheelhead in X-axis | 24.5 Nm |
| U-axis motor for crown | 8 Nm |
| Motor for measuring device | 8 Nm |
| Net dimension of the machine | 11,500×3,800×2,600 mm |
| Net weight | approx. 70,000 kg |
| Integrated lubrication | |
| Main electrical parts: Schneider in France | |
| Coolant system, magnetic separated paper filter | |
| Cover for bed paths of grinding wheel support: telescopic stainless steel | |
| Control system SINUMERIK 840D (NCU573.4 CPU PⅢ 500MHz) | |
Machine Accuracy with center rest:
Roundness ≤0.002 mm
Cylindrical tolerance ≤0.002 mm/m
Roller body tolerance ≤0.003 mm
Repeated positioning X-axis, 0.005 mm; Z-axis: 0.050 mm
Roughness Ra: 0.2 μm
| Item No. | Part Name | Supplier |
| 1 | Controller | Siemens Company in Germany |
| 2 | Servo motor | Siemens Company in Germany |
| 3 | DC motor for wheelhead | Siemens Company in Germany |
| 4 | DC motor for rotating workpiece | Siemens Company in Germany |
| 5 | DC adjusting speed device | Siemens Company in Germany |
| 6 | Ball leadscrew for U-axis & X & X1-axis | Shuton in Spain |
| 7 | Special bearings for ball lead-screw | IBC. Co. in Germany |
| 8 | Reducing gearbox | Stober or Alpha in Germany |
| 9 | Helical rack for Z-axis | WMH Co. in Germany |
| 10 | Linear encoder & feedback units | Heidenhain made by Germany |
| 11 | Main bearings | NSK Croup. in Japan |
| 12 | Hydraulic units | Atos in Italy |
| 13 | Automatic lubrication system | Rexroth products |
| 14 | Electrical cabinet and air-conditioner | Famous brand in China |
| 15 | Shaft coupling | Brand of KTR made Germany |
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