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Ultra-Compact Screw Jack – Lightweight, Easy-to-Use, High Performance
Key Features
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Capacity: 2kN / 5kN
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Super lightweight design while ensuring excellent strength and rigidity.
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Compact, space-saving housing, with mounting holes designed for both top and bottom installation.
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Built with a high-precision worm gear and trapezoidal screw; features a self-locking function that works at any position within the lifting stroke.
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Multiple options available, including dustproof bellows for screw protection, limit switches for stroke control, and RC encoder.
Advantages of Nippon Gear Compact Screw Jacks
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Compact & flexible – ideal for limited installation space.
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High performance – comparable to standard screw jacks.
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Durability & long service life – robust construction for reliable performance.
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Versatile applications – suitable for industrial equipment, automation systems, and lifting mechanisms.
Standard Specifications
| Specification | RMG – 2kN | RSG – 5kN |
|---|---|---|
| Lifting screw diameter | 16mm | 20mm |
| Lifting screw lead | 3mm | 4mm |
| Worm gear ratio (H) | 3 | 5 |
| Worm gear ratio (L) | – | 24 |
| Efficiency (H) | 0.22 | 0.22 |
| Efficiency (L) | – | 0.13 |
| Max. power per jack (H) | 0.32kW | 0.63kW |
| Max. power per jack (L) | – | 0.25kW |
| Input torque (no load) | 0.07 N·m | 0.15 N·m |
| Torque coefficient (a–H) | 0.73 | 0.57 |
| Torque coefficient (a–L) | – | 0.21 |
| Required input torque (H) | 1.5 N·m | 3.0 N·m |
| Required input torque (L) | – | 1.2 N·m |
| Speed coefficient (H) | 1.0mm | 0.8mm |
| Speed coefficient (L) | – | 0.17mm |
| Max. input speed | 2000 rpm | 2000 rpm |
| Max. input speed at full load | 2000 rpm | 2000 rpm |
| Anti-rotation key torque | 3.5 N·m | 7.5 N·m |
| Input shaft allowable overhang load | 120N | 300N |
| Grease amount | Maintenance-free | Maintenance-free |
| Operating temperature | -15〜80℃ | -15〜80℃ |
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