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ESTARTA 312 is a Centreless grinding machine engineered for precision, high accuracy and reliable performance. Working capacities: min. grinding diameter 2 mm, max. 75 mm; grinding wheel width 160 mm; infeed grinding depth 160 mm; grinding wheel (new Ø508 mm, used Ø388 mm, bore 305 mm); regulating wheel (new Ø305 mm, used Ø225 mm, bore 127 mm, width 160 mm). Main specs: main spindle from 1200 t/min; regulating spindle stepless 15–250 t/min; voltage 50 Hz 3x 380 Volt; main motor 15 CV; machine weight approx. 2640 kg; overall dimensions LxWxH 2300x1700x1495 mm. Accessories: coolant system. Achieves tight tolerances; typical applications include automotive, watchmaking, machine tools, aerospace and medical.
| Min. grinding diameter | 2 mm |
| Max. grinding diameter | 75 mm |
| Width of the grinding wheel | 160 mm |
| Max. workpiece length | |
| for infeed grinding | 160 mm |
| Grinding wheel: | |
| diameter new wheel | 508 mm |
| diameter used wheel | 388 mm |
| Width | 160 mm |
| Bore | 305 mm |
| Speeds: | |
| number (steps) | |
| from | 1200 t/min |
| Regulating spindle: | |
| diameter new wheel | 305 mm |
| diameter used wheel | 225 mm |
| Width | 160 mm |
| Bore | 127 mm |
| Speeds: | |
| stepless | |
| from | 15 t/min |
| up to | 250 t/min |
| Voltage 50 Hz 3x | 380 Volt |
| Main motor | 15 CV |
| Machine's weight about | 2640 kg |
| Overall dimensions machine: | |
| Length | 2300 mm |
| Width | 1700 mm |
| Height | 1495 mm |
| Various accessories: | |
| Coolant system |
