| CAPACITY |
GRU-2040 |
GRU-2060 |
| Distance between centers |
420 mm |
620 mm |
| Max. swing over table |
O 200 mm |
| Max. load between centers |
80 kg |
| Max. external grinding diameter |
O 190 mm |
| Roundness |
0.8 μm |
| Machine positioning accuracy |
1 μm |
| WHEEL SPINDLE |
| Swivel angle |
± 30° |
| Wheel O.D. x width x I.D. |
O 405 x Max. 80 x O 127 mm |
| Wheel spindle travel |
180 mm |
| Max. travel |
180 mm |
| Min. setting unit |
0.001 mm |
| Max. rapid traverse speed |
8 m/min. |
| Grinding feed rate |
0.0001 - 6,000 mm/min. |
| WORK TABLE |
| Swivel angle |
-3˚ ~ +12˚ |
| Max. travel |
420 mm |
620 mm |
| Max. rapid traverse speed |
10 m/min. |
| Min. setting unit |
0.001 mm |
| Grinding feed rate |
0.0001 - 8,000 mm/min. |
| WORK-PIECE SPINDLE |
| Spindle motor |
Servo Motor |
| Swivel angle |
+90˚ ~ -30˚ |
| Center taper |
20 m/min. |
| X / Y axes servo motor |
1.5 kW |
| Z-axis servo motor |
2.3 kW |
| TOOL MAGAZINE |
| Tool magazine capacity |
14 T |
| Max. tool length |
250 mm |
| Max. tool weight |
3 Kg |
| Max. tool magazine load |
25 Kg |
| Max. tool dia. / adj. pocket empty |
O 90 / 150 mm |
| ACCURACY |
| Positioning accuracy |
0.005 / 300 mm |
| Repeatability |
± 0.003 mm |
| GENERAL |
| Standard CNC controller |
SIEMENS 828D ( MITSUBISHI 70M-2BV Opt. ) |
| Voltage requirement |
15 kVA |
| Pneumatic pressure requirement |
6 Kg/cm2 |
| Coolant tank capacity |
150 L |
| Machine weight |
2,500 Kg |
| Dimensions ( L × W × H ) |
1,580 x 2,245 x 2,260 mm |
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