Brand：NTH
An integration of a rotary spindle, a power collet chuck,and an actuator.Specially designed for double-ended machining: saving setup,loading, and machining time.Accelerating the designing and building cycle of a new special purpose machine. Compact size. High clamping force. High rigidity.
Product introduction
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NTH JAM/JHM Spindle Collet Chuck is specially designed to provide the users with an all-in-one solution to build their special purpose machines. A traditional workholding system consists of a rotary spindle, a power chuck, and a actuator. JAM/JHM Spindle Collet Chuck combines these three elements in one, making machine builders very easy to design and to build a new special purpose machine. Since the gripping length of JAM/JHM Chucks are longer than regular collet chucks, JAM/JHM is mostly applied to grip double-ended work parts like hubs of bicycle wheels or piston rods of automobiles.
| Model | JAM-25(Push forward) | JAM-72(Push forward | JAM-65(Pull back) |
|---|---|---|---|
| A(Center H) | 135（5.31〞） | 145（5.71〞） | 145（5.71〞） |
| B | 232（9.13〞） | 265（10.43〞） | 255（10.04〞） |
| C | 270（10.63〞） | 288（11.34〞） | 260（10.24〞） |
| D | 210（8.27〞） | 236（9.29〞） | 220（8.66〞） |
| E | 64（2.52〞） | 105（4.13〞） | 92（3.62〞） |
| F | 238（9.37〞） | 256（10.08〞） | 228（8.98〞） |
| G | 92（3.62〞） | 111（4.37〞） | 106（4.17〞） |
| I(Pulley W) | 27（1.06〞） | 28.5（1.12〞） | 27（1.06〞） |
| J | 98（3.86〞） | 135（5.31〞） | 124（4.88〞） |
| K | 182（7.17〞） | 202（7.95〞） | 177（6.97〞） |
| L | 30（1.18〞） | 34（1.34〞） | 30（1.18〞） |
| M | 57（2.24〞） | 83（3.28〞） | 87（3.43〞） |
| collet | ER-40 | JR-72 | JR-65 |
| Power | Air | Air | Hydraulic |
| Working Pressure | 2-8kg/cm² (29-114psi) | 2-8kg/cm² (29-114psi) | 10-20kg/cm² (143-286psi) |
| Max RPM | 1800 | 2000 | 2000 |
| Pulley Type | 8M-72 | 8M-80 | 8M-70 |
| Clamping Range | 4-26mm (0.16〞-1.02〞) | 25-70mm (0.98〞-2.76〞) | 25-65mm(0.98〞-2.56〞) |
| Piston Area | 145cm²(22.5in²) | 177cm²(27.4in²) | 44cm²(6.82in²) |
| Clamping Force |
4070kgf@7kg/cm² (8954lbf@100psi) |
4070kgf@7kg/cm² (8954lbf@101psi) |
3080kgf@20kg/cm² (6775lbf@286psi) |
| N . W | 22.5kgs(49.5lbs) | 39.0kgs(85.8lbs) | 29.0kgs(63.8lbs) |
JAM/JHM AIR/HYDRAULIC POWER SPINDLE COLLET CHUCK APPLICATION
Subject to technology changes without prior information
Non-standard requirements can be made
