SWL Series Hand Wheel Worm Gear Screw Jack

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SWL Series Hand Wheel Worm Gear Screw Jack

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.

Hand Wheel Worm Gear Screw Jack Model Nomenclature:

e.g. SWL 2.5 M-1 A-Ⅱ-500 FZ
SWL 2.5 M 1 A 500 FZ
worm gear screw jack bearing capacity(25kN) ratio code structural form code structure assembly form screw stroke(mm) Protection from code

Hand Wheel Worm Gear Screw Jack Parameters:

Model SWL2.5 SWL5   SWL10/15  SWL20 SWL25 SWL35 SWL50 SWL100 SWL120
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: