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NDM Worm Gear Screw Jack
NDM Worm Gear Screw Jack
Description
NDM Series Worm Gear Screw Jacks are robust linear motion actuators designed for heavy-duty lifting, precise positioning, and synchronized multi-point motion. Using a worm-gear reducer paired with a trapezoidal (T-type) screw, the system ensures smooth transmission, high self-locking capability, and long service life even under continuous duty.
The product range includes capacities from 1T to 100T, supporting both translating screw type (Type 1) and rotating screw type (Type 2) structures. Multiple screw-tip end forms, upward or downward installation (A / B type), anti-rotation options, protective covers, and fully customized stroke lengths allow the NDM screw jacks to integrate seamlessly into a wide range of industrial systems.
Features
- Heavy load capacity: 1–100 tons
- Worm-gear mechanism with strong self-locking safety
- Two structure types: Translating screw or rotating screw
- Multiple screw-tip end forms (cylindrical, flange, threaded, flat-head, etc.)
- Optional anti-rotation protection (F-key, square guide)
- Optional protective covers (Z-steel tube, X telescopic tube, O double protection)
- Upward/downward installation direction: A / B
- Shaft direction options: A / B / C
- Customizable stroke lengths
- High mechanical efficiency and stable output torque
- Suitable for individual lifting or synchronized multi-jack systems
NDM Series Basic Parameters Table
(Recreated in English based on catalog layout)
Basic Parameters
| Type | NDM1T | NDM2.5T | NDM5T | NDM10T | NDM15T | NDM20T | NDM30T | NDM50T | NDM75T | NDM100T |
|---|---|---|---|---|---|---|---|---|---|---|
| Max Load (kN) | 9.8 | 24.5 | 49 | 98 | 147 | 196 | 294 | 490 | 735 | 980 |
| Screw Rod OD (mm) | 20 | 25 | 40 | 55 | 65 | 85 | 120 | 130 | 150 | 180 |
| Screw Bottom Diameter (mm) | 15 | 18 | 31 | 44 | 52 | 67 | 102 | 112 | 128 | 155 |
| Screw Lead (mm) | 5 | 5 | 6 | 10 | 12 | 16 | 16 | 16 | 18 | 20 |
| Ratio i | 6 | 6 | 6 | 24 | 29 | 32 | 38 | 31 | 31 | 34 |
| Rated Input Speed (rpm) | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 15 | 15 | 15 |
| Efficiency (%) | 21 | 21 | 21 | 13 | 11 | 9 | 9 | 9 | 8 | 8 |
| Max Input Power (kW) | 0.47 | 1.06 | 2.36 | 3.78 | 5.17 | 8.18 | 13.39 | 13.37 | 22.63 | — |
| Allowable Radial Load (N) | 127 | 247 | 480 | 973 | 1745 | 2816 | 4973 | 7245 | 8790 | 13019 |
| Allowable Axial Load (N) | 290 | 408 | 613 | 1260 | 2459 | 4630 | 8355 | 12772 | 16000 | 19000 |
| Max Input Shaft Torque (Nm) | 3.6 | 6.9 | 12.3 | 20.3 | 39.8 | 56.6 | 69.0 | 89.5 | 124.5 | 153.5 |
| Input Torque (No-Load) (Nm) | 0.18 | 0.26 | 0.48 | 0.74 | 1.25 | 1.55 | 1.85 | 2.3 | 3.1 | 3.79 |
| Max Screw Speed (rpm) | 720 | 600 | 500 | 200 | 200 | 150 | 150 | 100 | 100 | 100 |
| Screw Max Load Torque (Nm) | 290.1 | 465.1 | 813.2 | 1287.7 | 2513.9 | 5551.3 | 8021.8 | 10783.9 | — | — |
Material: Carbon steel screw & common steel pipe
Lubrication: Grease, splash lubrication
Cooling: Natural cooling
Ambient temperature: –10°C to +90°C
Highlights
- Strong self-locking performance ensures lifting safety during power loss
- Modular design with extensive customization possibilities
- Capable of synchronized lifting through mechanical linkage or motorized control
- Heavy-duty construction for demanding industrial environments
- Reliable operation with minimal maintenance requirements
- Multiple installation and screw-end interface options to match any equipment
Application
- Industrial lifting platforms and automated workstations
- Metallurgy, mining, and heavy-processing equipment
- Stage lifting, theater platforms, and motion-control structures
- Solar tracking and renewable-energy positioning systems
- Mechanical presses, valve actuators, and adjustable tooling
- Automated production lines requiring precise height control
- Conveyor height adjustment and synchronized multi-jack lifting
- Bulk material handling and loading systems
FAQs
Does NUODUN support non-standard customization? What is the typical lead time?
Yes. NUODUN’s core competitiveness lies in the synergistic advantage of “customization + system integration.” We support structural customization, torque customization, input flange customization, mounting interface customization, stroke customization and more for products such as planetary gearboxes, screw jacks, electric cylinders, and gearboxes. The typical lead time for standard non-standard customization is 7–20 days, while more complex engineered projects are usually delivered within 3–6 weeks.
How does NUODUN ensure high precision and reliability in customized transmission systems?
Our engineering strength comes from long-term R&D investment, CAE simulation, lifetime calculation databases, modular design frameworks, and a mature testing/verification system. This ensures that every customized solution is not only manufacturable, but also reliable under real-world loads — balancing precision, durability, and cost efficiency.
Which industries commonly use NUODUN transmission components?
Our products are widely used in photovoltaic manufacturing, semiconductor equipment, automotive production, metallurgy, logistics, medical devices, aerospace, stage automation, and industrial automation — especially where precision positioning, heavy loads, or long service life are required.
How does NUODUN guarantee long-term product reliability?
All products undergo type testing, torque testing, vibration testing, life testing, noise measurement, and precision inspection. Core components such as gears, screws, and bearings are produced using advanced machining, grinding, heat treatment, and automated assembly processes.
Does NUODUN provide global after-sales support?
Yes. We offer remote technical support, installation guidance, troubleshooting, selection assistance, and long-term spare parts support for OEM/ODM partners.
