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STAR SR-20 J type C
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STAR SR-20 J type C is a CNC automatic lathe (Swiss-type) designed for high precision, exceptional accuracy and reliable performance. Total axes 7; max. turning diameter 20 mm; turning length 205 mm. Spindle up to 10,000 rpm; back spindle up to 8,000 rpm; driven-tool speeds 8,000 rpm; turning tools 6 pcs, drilling tools 4 pcs, transverse tools 5 pcs (ER16). Rapid traverse 35 m/min. Voltage 3x400 V 50 Hz; spindle motor 2.2 kW; back spindle 1.5 kW; driven-tool power 1.2 kW; total power 5 kVA; weight ≈2200 kg; footprint L2250×W1200×H1700 mm. Equipped with coolant system. Achieves tight tolerances; suited for automotive, watchmaking, tooling, aerospace and medical sectors
Technical specifications are subject to change without notice
| Number of axis total | 7 |
| Max. turning diameter | 20 mm |
| Turning length | 205 mm |
| Spindle speeds: | |
| stepless | |
| up to | 10000 t/min |
| Back spindle: | |
| speeds: | |
| up to | 8000 t/min |
| Spindle speeds (turning tools) | 8000 t/min |
| Counter-operation: | |
| Turning tools | 6 pce |
| Drilling tools | 4 pce |
| Transverse processing tools | 5 (ER 16) pce |
| Rapid traverse: | 35 m/min |
| Voltage 50 Hz 3x | 400 Volt |
| Spindle motor | 2.2 kW |
| Power of back spindle | 1.5 kW |
| Power of driven tools | 1.2 kW |
| Total power required | 5 kVA |
| Machine's weight about | 2200 kg |
| Overall dimensions machine: | |
| Length | 2250 mm |
| Width | 1200 mm |
| Height | 1700 mm |
| Various accessories: | |
| Coolant system |
