Quick Details

Applicable Industries:

Machinery Repair Shops

Gearing Arrangement:


Output Torque:


Input Speed:


Output Speed:


Place of Origin:

Zhejiang, China

Brand Name:


Product name:

Worm Gear Screw Jack


Cast Iron


Blue, Green

Mounting Position:

Foot Mounted or Flange mounted

Input Form:

Motor, IEC Flange

Output Form:

Flange Output, Solid Shaft,




Power Tranmission



Gear material:

Low Carbon High Alloy Steel

Packaging & Delivery

Selling Units:
Single item
Single package size:
80X48X21 cm
Single gross weight:
45.000 kg
Package Type:
Polythene liner bag enclosing screw jack (which is moisture barrier, rust-proof).
Polyurethane foam around the screw jack (avoiding shock in delivery) in veneer case.
Picture Example:
Lead Time
Quantity(Sets) 1 – 10 >10
Est. Time(days) 25 To be negotiated

Online Customization

Video Description

Manual Worm Gear Screw Jack

Product Description

1. Manual Screw Jack Instruction:

Manual Screw Jack is composed of hand wheel or hand crank and a worm gear screw jack, which has intermittent precisely positioning and self-locking feature for no creeping down without brake mechanism or other locking systems, when manual ball screw jack, no self-locking feature, avoid ball screw back drive with attached load, which needs additional brake mechanism or other locking system to prevent it creep.

2. Our Jack’s Advantages:






-2 /3 /4 /8 sets etc. screw jacks to linkage to use ( For screw jacks linkage scheme, pls see the below)

3.Screw Jack Part Introduction:

4. How to Choose aScrew Jack?Some questions you need answer pls.

Q1: The capacity isto load? KG (it means how many Kg or Tons the screw jack need to lift or drop?)

The stroke is ? mm (it means the screw shaft length, such as 500mm)

The lifting speed is ? mm/second (it means how much time you want to use to finish the stroke? Such as I want to use 20 seconds to finishthe500mm strokethen can come out the speed is 25mm/s )

Screw jack SWL2.5-120 performance parameters table asthe below:

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*thread dimension(mm) Tr30*6 Tr40*7 Tr58*12 Tr65*12 Tr90*16 Tr110*18 Tr120*20 Tr160*23 Tr180*25
Worm Ratio P 6 6 7 8 10 10 10 12 12
Worm Ratio M 24 24 23 24 32 32 32 36 36
Stroke for one input turn(mm) P 1.0 1.167 1.565 1.5 1.5 1.69 1.87 1.92 2.083
Stroke for one input turn(mm) M 0.25 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

Q2:Which the screw topyou need?Answer: I need (A B C D E F).

Q3:Manual type(Hand wheeldriven) or electric motor driven type?Answer: I need type.

Q4:Screw movement (screw travelling up and down when working) or Nut movement (the nuttravelling up and down when working)? Upright orInverted? Answer: I need (A B E F)

Q5:Screw jacks linkage

Do you need two or above two sets screw jacks to linkage, if yes pls seethe belowscrew jacks linkage scheme, if no pls ignore this.

Answer: 1. No need 2. Need,sets (2 /3 /4 /8 or othersets) screw jacks to linkage, ( I /T / L / H / U) )type ( Or you can mark it out on the below screw jacks linkage scheme picture).

For example, a 4-sets linkage H type ( without screw in this picture) as followIing:

After we got your answers we can make a CAD format drawing for you to check and quote you the best price.

5. Screw Jack’s Application:


Payment & Packaging


We acceptT/T, Credit Card (VISA or MasterCard), L/C, Paypal,Alibaba Trade Assurance(this service can guarantee the clients’ benefit to utmost)etc.

2. Package:

1. Common package: PE bags with bubble, carton box then bubble then plywood box, safe package.

2. According to clients’ special requirements.

3. Shipping:

1. Seatransportation: shipping FCL or shipping LCL, this is the most common way

2. Land transportation: this is suitable for the inland countries

3. Air transportation

4. Express:DHL,TNT,UPS,Fedex etc.

Welcome to contact us , we will give you reply within two hours!