SWLD Series Worm Gear Jack with Flange Input for Construction Lifting

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SWLD Series Worm Gear Jack with Flange Input for Construction Lifting

A worm gear jack is a mechanical drive that uses a worm wheel to convert rotational motion into linear motion. It is commonly used in a variety of industrial applications, such as lifting heavy objects or adjusting the height of equipment. Worm gear jacks are known for their high efficiency, strength, and durability.

The basic design of a worm gear jack consists of the worm gear, worm shaft, and lifting screw. The worm gear is a cylindrical gear with spiral threads engaged with the worm shaft. The worm shaft is the threaded rod that turns the worm gear. A lifting screw is a threaded rod that moves in a straight line when it is rotated by a worm gear.

SWL series worm gear jack is the basic part of lifting. Jack through worm gear drive screw to achieve lifting, pushing, turning, and other functions. The jack has two modes of movement: screw movement and nut movement. The input form of the jack has single shaft input, dual shaft input, flange input, flange plus shaft input, etc. Screw moving type and biaxial input type are the basic types of screw elevators, widely used.

SWLD Series Worm Gear Jack Model:

Model Motor Power Flange Model
SWLD1T 0.18kW, 0.37kW 63B5
SWLD2.5T 0.37kW 71B5
SWLD5T 0.75kW 80B5
1.5kW 80B5
SLWD10T/15T 1.5kW 80B5
 2.2kW 100B5,112B5
SWLD20T 2.2kW 100B5
3.0kW 112B5
SWLD25T 4.0kW 100B5,112B5
5.5kW 132B5

SWLD Series Worm Gear Jack Components:

Worm gear high quality 9-4 copper
Worm 20CrMnTi
Screw material 45# steel finishing
Housing material HT250 cast iron
Bearing high load bearing,
Chinese famous brand or C&U
Oil seal Chinese famous brands or NAK or SKF

SWLD Series Worm Gear Jack Parameter:

Model SWLD2.5 SWLD5   SWLD10/15  SWLD20 SWLD25 SWLD35 SWLD50 SWLD100 SWLD120
Max lifting load(Kn) 25 50 100/150 200 250 350 500 1000 1200
Screw diameter*
Tr30*6 Tr40*7 Tr58×12 Tr65*12  Tr90*16  Tr110*18 Tr120*20 Tr160*23 Tr180*25
Worm Ratio P 6:1 6:1 7:1 8:1 10:1 10:1 10:1 12:1 12:1
M 24:1 24:1 23:1 24:1 32:1 32:1 32:1 36:1 36:1
Stroke for one input turn
P 1.0 1.167 1.565 1.5 1.5 1.69 1.87 1.92 2.083
M 0.250 0.292 0.5 0.5 0.5 0.56 0.625 0.638 0.694
Max permissible power(kW) 1.45 2.59 3.47 4.02 5.38 13.06 13.9 28.5 62
Weight per 100mm
screw & protective tube(kg)
0.45 0.82 1.67 2.15 4.15 5.20 7.45 13.6 17.3

SWLD Series Worm Gear Screw Jack Applications:

Worm gear jacks are ideal for pushing, pulling, lifting, lowering, and positioning loads on objects. They are essential components in automated machinery because of their high reliability and synchronization. They typically run in high-load applications. In addition, screw jacks are increasingly being used as an alternative to traditional pneumatic and hydraulic systems because of their better energy efficiency and higher accuracy. NORTON Jack and Lifting Systems offer a wide range of lifting and positioning solutions for different industries.

  • Gypsum factories
  • Sheet metal forming machinery
  • Paper, press, printing industry
  • Food processing machinery
  • Construction sectorMechanical lifting applications
  • Bridge jacks for road and bridge lifting
  • Platform lifting applications
  • Opening and closing of penstocks
  • Industrial process
  • Roll form machinery
  • Stage setup applicationsShipyards
  • Mining industry
  • Lift tables
  • Defense industry


We are one of the best worm gear jack suppliers. We can offer wide worm gear jack stock. We have exported our products to clients worldwide and earned a good reputation because of our superior product quality and after-sales service. We welcome customers at home and abroad to contact us to negotiate business, exchange information, and cooperate with us!

Advantages of Worm Gear Jacks:

Worm gear jacks have several advantages over other types of lifting devices. Some of the main advantages of worm gear jacks include:

High load capacity: Worm gear jacks are designed to support heavy loads from a few hundred pounds to several tons.

Precise lifting: Worm gear jacks provide precise lifting and lowering control, making them ideal for applications where accuracy is critical.

Stability: Worm gear jacks provide steady lifting force and are unlikely to shift or slip even under heavy objects.

Durability: Worm gear jacks are designed to withstand heavy use and provide long-lasting performance.

Versatility: Worm gear jacks are available in a variety of sizes and configurations for a wide range of applications.

    Worm Gear Jack Application: