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STUDER S 40-2 is a Cylindrical grinder designed for precision, high accuracy and reliability. Working capacities: centre height 175 mm, distance between centres 650 mm, max longitudinal travel 700 mm; wheels Ø400 mm (width 80/40 mm) bore 127 mm; workpiece max 130 kg; hydraulic cross travel 300 mm; wheelhead swivel 180°; table angle 12°. Main specs: wheel speeds 6 steps 1500–2400 t/min (35 m/s); work spindle stepless 60–600 t/min, rotatable 0–90°; wheel motor 3 kW, work spindle motor 1 kW; 3×400 V 50 Hz; total 13 kVA; weight ≈3100 kg; dims 2150×2000×1800 mm. Accessories: 2‑axis DRO, internal grinding attachment, magnetic chuck Ø150 mm, paper filtration, flanges, lamp, balancing arbor, safety device. Achieves tight tolerances; suited to automotive, aerospace, tooling and medical sectors
| Centre height | 175 mm |
| Distance between centres | 650 mm |
| Grinding wheel right and left hand | |
| Max. Longitudinal travel | 700 mm |
| Grinding weehl left side: | |
| Diameter | 400 mm |
| Width | 80 mm |
| Bore | 127 mm |
| grinding wheel width | 80 mm |
| Grinding wheel right side: | |
| Diameter | 400 mm |
| Width | 40 mm |
| Bore | 127 mm |
| Workpiece weight on centres max. | 130 kg |
| Grinding wheel speeds: | |
| number (steps) | 6 |
| from | 1500 t/min |
| up to | 2400 t/min |
| Peripheral speed | 35 m/s |
| Hydraulic cross travel | 300 mm |
| Angular displacement | 180 ° |
| Work piece spindle head: | |
| speeds: | |
| stepless | |
| from | 60 t/min |
| up to | 600 t/min |
| rotatable | 0-90 ° |
| Spindle taper | 5 CM |
| Taper in tailstock: | 3 CM |
| Table angular displacement | 12 ° |
| Table speed: | |
| from | m/min |
| up to | 9 m/min |
| Voltage 50 Hz 3x | 400 Volt |
| External Grinding wheel motor | 3.00 kW |
| Workpiece spindle motor | 1 kW |
| Total power required | 13 kVA |
| Machine's weight about | 3100 kg |
| Overall dimensions machine: | |
| Length | 2150 mm |
| Width | 2000 mm |
| Height | 1800 mm |
| Various accessories: | |
| Digital readout number of axis: | 2 |
| Internal grinding attachment | |
| Spindle speeds | 25000 t/min |
| Macnetic chuck diameter | 150 mm |
| Paper filtration system | |
| Set of flanges | |
| Lamp | |
| Balancing arbor | |
| Safety device |
