SWLD Series Worm Gear Screw Jack with Flange Input

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SWLD Series Worm Gear Screw Jack with Flange Input

A screw jack is a mechanical device that uses a screw to lift or move a heavy object. It is a simple and versatile tool used in a variety of applications, including automotive, construction, and manufacturing.

A jack is made up of screws, nuts, and handles. The screw is threaded and connected to a fixed base. The nut is set to the load that needs to be lifted. The handle is used to turn the screw in order to raise the nut and gear.

The amount of force required to turn a screw is determined by the pitch of the screw. Pitch is the distance between the screw threads. A coarse-pitch screw requires more force to ride than a fine-pitch screw.

The weight a screw jack can lift is determined by the bearing capacity of the screw. Carrying capacity refers to the maximum weight that the screw can be safely lifted.

SWLD Series Worm Gear Screw 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 Screw 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 Screw Jack Parameters:

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



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Advantages Of Screw Jacks:

Compared with other lifting mechanisms, screw jacks have the following advantages:

High lifting capacity: Screw jacks can lift heavy objects easily, making them ideal for applications with high lifting capacity.

Precise positioning: Screw jacks can precisely lift and position loads, making them ideal for applications requiring high accuracy.

Easy to use: Screw jack is a simple mechanical device, easy to operate, less maintenance needs.

Versatility: Screw jacks can be used in a variety of applications, from industrial machinery to automobile repair.

Safety: Screw jacks are designed to be stable and secure, which makes them a safe lifting mechanism.

Screw Jack Application: