| ITEM | UNIT | CK6140B |
| General Rules | CNC system | | GSK |
| physical dimention | mm | 2100*1300*1900 |
| The total weight of machine tool | kg | 1700 |
| Scope of work | Max. workpiece rotation diameter of bed body | mm | 420 |
| Max.machining length | mm | 210 |
| The X axis | mm | 295 |
| Max. Z-axis stroke | mm | 750 |
| Bed | Width of bed rail | mm | 335 |
| Max. apex distance | mm | 750 |
| Spindle | Spindle head type | | D-6 |
| Taper of spindle inner hole | | MT6# |
| Main shaft aperture | mm | 58 |
| Spindle speed | rpm | 60-300;250-800;600-2000 |
| Spindle motor powwer | rpm | Ordinary motor 7.5/optional 11 |
| Manual three -jaw collet dimensions | | Manual three jaw chuck 250 |
| Servo shaft | X/Z ball screw | | 2505/3210 |
| X /Z axis motor power | nm | 6/10 |
| Working accuracy | Fast feed speed | m/min | 6;8 |
| Positioning accuracy | mm | X axis (transverse)≤0.01 Z axis (longitudinal)≤ 0.015 |
| Repeated positioning accuracy | mm | X axis (transverse)≤ 0.01 Z axis (longitudinal) ≤ 0.01 |
| Roundness | mm | < 0.007 |
| Consistency in diameter | mm | ≤ 0.03/Length 300 |
| Flatness | mm | ≤ 0.02/Diameter 300 |
| Surface roughness(steel parts) | um | <Ra1.6 |
| Tailstock | Diameter of tailstock sleeve | mm | 65 |
| Tailstock sleeve stroke | mm | 150 |
| Taper hole of tailstock center | | MT4# |
