Project Description
Worm Gear Screw Jack
These worm gear screw jacks are very precision and reliability, it can meet all the necessary safety, cost-efficiency, and durability mandates of your application. High strength bronze worm gear is used, the payloads from 0.5T to 100T . A total of 11 sizes are available, each in a traveling nut version and a basic version.
- Worm gear drive screw jack
- Translating(traveling screw) and rotating (traveling nut) configurations
- Electric Driven and Manual Operated both are available
- Trapezoidal spindle (self-locking) and Ball Screw spindle (high efficiency) version
- Design option: Standard, Anti-rotation, Anti-backlash or Safety nut
- Standard and custom end fittings, mounting options, and drive shaft
| Model | NDM1 T | NDM2.5T | NDM5T | NDM10T | NDM15T | |
| Maximum Load (T) | 1T | 2.5T | 5T | 10T | 15T | |
| Outer Diameter of screw (mm) | 20 | 26 | 40 | 50 | 55 | |
| Root Diameter of screw (mm) | 14.8 | 19.7 | 30.5 | 38.4 | 43.4 | |
| Screw Pitch (mm) | 4 | 5 | 8 | 10 | 10 | |
| Gear Ratio | H | 5 | 6 | 6 | 8 | 8 |
| L | 20 | 24 | 24 | 24 | 24 | |
| Efficiency % | H | 21 | 21 | 22 | 22 | 20 |
| L | 12 | 12 | 14 | 15 | 14 | |
| Permissible max. Power ( KW ) | H | 0.49 | 1 | 2 | 2.8 | 3.1 |
| L | 0.36 | 0.46 | 0.63 | 1.4 | 2.2 | |
| No-load Torque(N·m) | 0.29 | 0.62 | 1.4 | 2 | 2.6 | |
| Permissible torque of input shaft (N·m)* | 19.6 | 49 | 153.9 | 292 | 292 | |
| Required torque of input shaft at max. Load (N.m) | H | 6.2 | 16.1 | 48.7 | 90.7 | 149 |
| L | 2.9 | 7.4 | 20 | 45.3 | 72.3 | |
| Screw travel length (mm) per turn of worm shaft | H | 0.8 | 0.83 | 1.33 | 1.25 | 1.25 |
| L | 0.2 | 0.21 | 0.33 | 0.42 | 0.42 | |
| Permissible max. Input(rpm) when max. load | H | 750 | 600 | 400 | 300 | 200 |
| L | 1200 | 600 | 300 | 300 | 290 | |
| Screw torque when max. Load (N·m) | 20.1 | 65.1 | 201.5 | 503.6 | 813.2 | |
| Model | NDM20T | NDM30T | NDM50T | NDM75T | NDM100T | ||
| Maximum Load (T) | 20T | 30T | 50T | 75T | 100T | ||
| Outer Diameter of screw (mm) | 65 | 85 | 120 | 130 | 150 | ||
| Root Diameter of screw (mm) | 51.3 | 67 | 102 | 112 | 127 | ||
| Screw Pitch (mm) | 12 | 16 | 16 | 16 | 20 | ||
| Gear Ratio | H | 8 | 10.6 | 10.6 | 10.6 | 12 | |
| L | 24 | 32 | 32 | 32 | 36 | ||
| Efficiency % | H | 20 | 19 | 15 | 13 | 13 | |
| L | 13 | 11 | 10 | 8 | 8 | ||
| Permissible max. Power ( KW ) | H | 5 | 8.4 | 13.4 | 14.4 | 21.4 | |
| L | 3.2 | 4.6 | 5.7 | 7.2 | 9.4 | ||
| No-load Torque(N·m) | 3.9 | 9.8 | 19.6 | 29.4 | 39.2 | ||
| Permissible torque of input shaft (N·m)* | 292 | 735 | 1372 | 1764 | 2450 | ||
| Required torque of input shaft at max. Load (N.m) | H | 238.1 | 400.1 | 856 | 1380.5 | 2040.9 | |
| L | 124 | 244 | 453.3 | 761.3 | 1278.3 | ||
| Screw travel length (mm) per turn of worm shaft | H | 1.5 | 1.5 | 1.5 | 1.5 | 1.67 | |
| L | 0.5 | 0.5 | 0.5 | 0.5 | 0.56 | ||
| Permissible max. Input(rpm) when max. load | H | 200 | 200 | 150 | 100 | 100 | |
| L | 250 | 180 | 120 | 90 | 70 | ||
| Screw torque when max. Load (N·m) | 1287.7 | 2531.9 | 5551.3 | 8921.8 | 13878.3 | ||
NDM Series Worm Gear Screw Jack Ordering Guide Information
NDM – 1T – US – T – C – 1/6 – 300 – Y
1 2 3 4 5 6 7
1: Worm jacks Model
NDM series worm screw jack
2. Load Capacity
1T: Max. 1T lifting force
3: Screw Configuration & Mounting Orientation
US: Upright translating screw UK: Upright keyed screw UR: Upright rotating screw
IS: Inverted translating screw IK: Inverted keyed screw IR: Inverted rotating screw
Note: US, IS (Screw rotation, do axial motion) UK, IK (Screw anti-rotation, do axial motion)
UR,IR(Screw fixed rotation, traveling nut do axial motion)
4: Screw Top End
T: Top plate H: Clevis end S: Thread end R: Plain end SH: Spherical hinge U: Forked head
5: Worm Shaft Input Types
A: left side worm shaft input.
B: right side worm shaft input.
C: double worm shaft input.
M1: left side motor flange direct input.
M2: right side motor flange direct input.
M3: left side motor flange direct input, right side worm shaft input.
M4: right side motor flange direct input, left side worm shaft input.
6: Gear Ratio
7: Travel Stroke
8: Accessories
N: Standard Jack, No additional accessories
P: Protective Tube
R: Dust Cover
Y: Hand Wheel
Other accessories,please check below picture
We have been supplied worm gear screw jack and lift system since 2008.
- Has the unique ability to provide complete system lifting solutions with 3D models.
- Providing “turn key” solutions with the optimal balance of performance, life, and cost.
- Wide application experience in diverse industries including transportation, packaging, factory automation, material handling, printing, automotive, machine tool, paper, steel, food and beverage etc.
You can trust us on high quality, on-time delivery, controlled costs and reduced risk. Let us help you.
