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Spindle bore：86(76)mm
Swing over bed：500/400mm
Chuck size：250/305mm
Main motor power：15(18.5)/11kw
| Model | Unit | STC400 | STC500 |
| Bed structure | – | 45°Integral bed | 45°Integral bed |
| Guideway type | – | Linear/Sliding | Linear/Sliding |
| Max. swing over bed | mm | 400 | 500 |
| Max. swing over cross slide | mm | 320 | 320 |
| Max diameter of bar | mm | 74(50) | 74 |
| Spindle speed | rpm | 2000(2500) | 2000 |
| Spindle nose | – | A2-8(A2-6) | A2-8(A2-6) |
| Spindle bore | mm | 86(76) | 86(76) |
| Chuck size | mm | 250(200) | 250/305 |
| Cross travel (x) | mm | 250 | 250 |
| Longitudinal travel (Z) | mm | 600/1000 | 1500/2150/3150 |
| x/Z-axis rapid feed speed | m/min | 20/16 | 20/16 |
| Hydraulic tool post type | – | 100-8T(80-12T) | 100-8T (100-12T) |
| Tool section size | mm | 25×25Ф40 | 25×25Ф40 |
| Tailstock quill diameter | mm | 75 | 110 |
| Tailstock quill travel | mm | 100 | 100 |
| Tailstock quill taper | – | MT5 | MT4 |
| Working accuracy | mm | IT6 | IT6 |
| x-axis repositioning accuracy | mm | 0006 | 0.006 |
| Z-axis repositioning accuracy | mm | 0.008/0.01 | 0.013/0.017/0.021 |
| Main motor power | kw | 11(15) | 15(18.5) |
| Power supply | kva | 35 | 35 |
| Machine dimensions (LxWxH) | mm | 2900/3100x1800x1800 | 4300/4950/5600x2050x1980 |
| Machine weight | kg | 3100/3600 | 4600/5300/6900 |
