Product Information
HeJ
Hollow 2-Jaw Power Chuck
Double Slide
2-jaw type.
Features MMK’s original double-slide design, offering excellent rigidity and durability.
Additionally, its hollow design accommodates bar stock, enabling high-precision machining for a wide range of applications.
Method
| Unit | HeJA6-8-46 | HeJA6-10-66B | HeJA8-10-66 | HeJA8-12-67 | |
|---|---|---|---|---|---|
| Nominal Chuck Diameter | (inches) | 8 | 10 | 10 | 12 |
| Maximum Permissible RPM | min-1 | 4,100 | 3,700 | 3,700 | 2,700 |
| Jaw stroke | mm | Φ6.4 | Φ8 | Φ8 | Φ8 |
| Shifter stroke | mm | 20 | 25 | 25 | 25 |
| Maximum Workpiece Diameter | mm | 189 | 228.6 | 228.6 | 274.5 |
| Minimum Workpiece Diameter | mm | 18 | 39.6 | 39.6 | 16 |
| Maximum gripping force | KN | 54.88 | 65.86 | 65.86 | 76.44 |
| Cylinder Allowable Thrust | KN | 18.75 | 24.62 | 24.62 | 28.61 |
| Mass | kg | 25 | 40 | 40 | 86 |
Depending on the shape of the spindle end of the mounting machine, you can choose between the short taper type (JIS B 6109) and the straight fit type.
Draw screws (F) are available in sizes other than those listed in the table above. Please contact us for details.
Draw screws (F) are available in sizes other than those listed in the table above. Please contact us for details.
Download Materials
| HeJA6-8-46 |
| HeJA6-10-66B |
| HeJA8-10-66 |
| HeJA8-12-67 |
