High-Lead Screw Jacks: Optimizing Lifting Speed and Efficiency
Compact Design – Superior Performance for Automation
Designed specifically for applications demanding high speed and efficiency, the High-Lead (Quick-Action) Screw Jack series from Nippon Gear Maker provides a lifting solution that is compact and lightweight yet offers vastly superior operation compared to standard screw jack types.
Technological Highlights and Customer Benefits
1. Ultra-Fast Lifting Speed (2x – 5x)
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Advanced Screw Technology: The product uses a quadruple-thread lead screw combined with a special high-lead pitch.
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Operational Efficiency: Thanks to this design, the lifting speed is 2 to 5 times faster than standard screw jacks (at the same input shaft speed), making it ideal for fast automation systems.
2. Optimized and Flexible Design
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Compact Size: The optimized design helps save valuable installation space in the production line.
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Multi-Directional Mounting: Smart mounting holes allow you to mount the jack on both the top or bottomof the equipment, increasing flexibility in system design.
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Load Capacity: Suitable for light and medium load ranges: 2kN / 5kN / 10kN.
3. Control and Protection Options
Despite their compact size, high-lead screw jacks can still be equipped with essential options:
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Protection: Dust-proof bellows (helps protect the lifting screw from dirty environments).
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Control: Limit Switch (for stroke control), RC Encoder (ensures positional accuracy in synchronized systems).
IMPORTANT SAFETY WARNING
Non-Self-Locking Function:
Due to the use of a high-lead screw pitch to maximize speed, this type of screw jack does not have a self-locking function (Non-Self-Locking). This means the load may slide down when the motor stops.
It is mandatory to install a Safety Brake or use an appropriate motor braking system during installation to ensure absolute safety for personnel and equipment.
Ideal Applications
High-lead screw jacks are the perfect choice for:
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High-speed lifting/lowering tables.
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Fast positioning systems in assembly lines.
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Actuators requiring quick response in automated environments.
Standard Technical Specifications Table
| Series/Size Code | RMY | RSY | J0Y |
| Load Capacity | 2kN | 5kN | 10kN |
| Lifting Screw Diameter | 16mm | 20mm | 25mm |
| Lifting Screw Pitch | 12mm | 16mm | 20mm |
| Gear Ratio | 3 | 5 | 5 |
| Efficiency | 0.45 | 0.44 | 0.44 |
| Max Rotation Speed | 2000 rpm | 2000 rpm | 1800 rpm |
| Max Speed at Max Load | 1020 rpm | 990 rpm | 475 rpm |
| Lubrication Grease | Maintenance-free | Maintenance-free | 0.1 kg |
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