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STUDER S 20-12 is a cylindrical grinder engineered for precision, high accuracy and reliability. Capacities: centre height 100 mm, distance between centres 400 mm; grinding wheel Ø300×30 mm, bore 127 mm; wheelhead angular 30°, workpiece spindle rotatable 20°. Specs: speeds 60–1200 t/min (stepless), spindle taper 3 CM, tailstock taper 2 CM; table tilt 30°; table speed 100–3500 mm/min stepless; external wheel motor 4.5 CV; supply 3x380 V 50 Hz; weight ≈1900 kg; dims 1500×1400×1600 mm. Accessories: tailstock with fine adjustment, paper filtration, safety device. Achieves tight tolerances; suited for automotive, aerospace, watchmaking, machine tools and medical.
| Centre height | 100 mm |
| Distance between centres | 400 mm |
| Grinding wheel: | |
| Diameter | 300 mm |
| Width | 30 mm |
| Bore | 127 mm |
| Angular displacement | 30 ° |
| Work piece spindle head: | |
| speeds: | |
| stepless | |
| from | 60 t/min |
| up to | 1200 t/min |
| rotatable | 20 ° |
| Spindle taper | 3 CM |
| Taper in tailstock: | 2 CM |
| Table angular displacement | 30 ° |
| Table speed: | |
| stepless | |
| from | m/min |
| from | 100 mm/min |
| up to | 3500 mm/min |
| Voltage 50 Hz 3x | 380 Volt |
| External Grinding wheel motor | 4.5 CV |
| Machine's weight about | 1900 kg |
| Overall dimensions machine: | |
| Length | 1500 mm |
| Width | 1400 mm |
| Height | 1600 mm |
| Various accessories: | |
| Tailstock with fine adjustement | |
| Paper filtration system | |
| Safety device |
