ST 20M
BRAND : STARMAC
CNC LATHE
ST-20M machine tool is four shaft linkage, half closed loop control of all the function numerical control lathe, machine equipped with REXROTH MTX and numerical control system, adopt and lathe bed, and a 45 ° tilt level guide to decorate, W and Z axis axis motion guide is using sliding guide rail, friction coefficient little, dynamic characteristic well.
| ITEM | MACHINE SPECIFICATIONS | UNIT | ST-20M | ST-25M |
| CAPACITY | Max. swing diameter | mm | Φ600 | Φ650 |
| Max. cutting diameter | mm | Φ400 | Φ400 | |
| Max. milling and cutting diameter | mm | Φ310 | Φ320 | |
| Max. cutting length | mm | 500 | 650 | |
| SPINDLE | Spindle head form | A2-6 | A2-8 | |
| Chuck size | 8″ (Hollow hydraulic chuck) | 10″ (Hollow hydraulic chuck) | ||
| Max. spindle speed | rpm | 4500 | 3500 | |
| Spindle through hole diameter | mm | Φ76 | Φ87 | |
| Maine spindle motor power | kW | 13.6 | 15/20.5 | |
| VICE SPINDLE | Spindle head form | A2-6 | A2-6 | |
| Chuck size | 8″ (In implementing hydraulic chuck) | 8″ (In implementing hydraulic chuck) | ||
| Max. spindle speed | rpm | 4500 | 3500 | |
| Spindle through hole diameter | mm | Φ76 | Φ65 | |
| Main spindle motor power | kW | 9.5 | 11/15 | |
| TURRET | Tool turret type | 12 positions servo dynamic tool turret | 12 stations | |
| Encircle turning tool holder size | mm | 20*20 | 25*25 | |
| Inner diameter tool holder size | mm | Φ32 mm, φ25 mm, φ20 mm, φ16 mm | Φ40 mm, φ32 mm, φ25 mm, φ20 mm | |
| Max. speed of Power tools | rpm | 4000 | 4000 | |
| OPERATION TRAVEL | X axis travel | mm | 200 | 240 |
| Z axis travel | mm | 540 | 690 | |
| Y axis travel | mm | ±50 | ±50 | |
| W axis travel | mm | 520 (Vice spindle travel) | 750 (Vice spindle travel) | |
| RAPID SPEED | X axis rapid speed | mm/min | 20 | 12 |
| Z axis rapid speed | mm/min | 20 | 16 | |
| Y axis rapid speed | mm/min | 12 | 12 | |
| W axis rapid speed | mm/min | 20 | 16 | |
| CONTROL SYSTEM | Control system | Fanuc-0i-TD | SIEMENS 840D | |
| MOTOR PARAMETER | X/Y/Z/W axis servo motor torque | Nm | 14.5/14.5/20/20 | 10.3/10.3/18.5/18.5 |
| Spindle drive motor power/torque | kW/Nm | 13.6, 89.9 | 15/20, 95.5 | |
| Vice spindle drive motor power/torque | W/Nm | 9.5, 64.1 | 11/15, 12 | |
| Rotary tool drive motor power/torque | kW/Nm | 8.5, 20 | 5.7, 12 | |
| Machine size (L*W*H) | mm | 4336*1840*2160 | 5025*1940*2167 | |
| MACHINE | Spindle center height | mm | 1021 | 1010 |
| Machine weight | kg | 5500 | 8500 |
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