Screw Jack
High-lead Screw Jack
Outline
This type of jack is compact and lightweight, yet delivers high performance similar to standard screw jacks; it is easy to use, while realizing high efficiency and high speed.
Features
- – Capacity: 2kN/5kN
- – The adoption of a 4-start screw (quadruple-thread) and high-lead model enables high-speed operation.
- – The speed is 2-5 times faster than that of conventional screw jacks (H) at the same input rotation speed.
- – The housing is compact and space-efficient; and its shape and mounting holes are designed to allow either its upper or lower surface to be attached to your device.
- – Wide-ranging options are available, including dustproof bellows to protect the lifting screw, limit switch for control, and RC encoder.
- – This type of jack does not have a self-locking function, so it is required to install a brake.
Specifications
| Series/Size Code | RMY | RSY | J0Y |
|---|---|---|---|
| Capacity | 2kN | 5kN | 10kN |
| Lifting screw diameter | 16mm | 20mm | 25mm |
| Lifting screw lead | 12mm | 16mm | 20mm |
| Worm gear ratio | 3 | 5 | 5 |
| Efficiency | 0.45 | 0.44 | 0.44 |
| Maximum allowable power per jack | 0.32kW | 0.63kW | 0.75kW |
| Input shaft torque at no load (b) | 0.07N・m | 0.15N・m | 0.3N・m |
| Torque coefficient (a) | 1.43 | 1.17 | 1.46 |
| Required input torque at maximum load | 2.9N・m | 6.0N・m | 14.9N・m |
| Standard Capacity | 0.6N・m | 1.2N・m | 3.0N・m |
| Speed coefficient (c) (screw lead per rotation of input shaft) |
4mm | 3.2mm | 4mm |
| Maximum allowable input rotation speed | 2000min-1 | 2000min-1 | 1800min-1 |
| Maximum input rotation speed at maximum load | 1020min-1 | 990min-1 | 475min-1 |
| Anti-rotation key torque at maximum load | 2.3N・m | 7.1N・m | 17.6N・m |
| Input shaft allowable overhang load | 117.6N | 294N | 294N |
| Amount of filled grease | Maintenance-Free | Maintenance-Free | 0.1kg |
| Operating temperature range | -15〜80℃ | -15〜80℃ | -15〜80℃ |
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Screw Jack
