scissor type screw jack

Scissor Type Screw Jack: What is it and How Does it Work?

screw jack

A scissor type screw jack is a mechanical device that is used to lift heavy loads or apply large forces. It is commonly used in various industrial applications due to its ability to generate high forces with minimal input effort.

What is a screw jack used for?

screw jack

A screw jack can be used for:

  • Lifting heavy loads in manufacturing and construction processes
  • Adjusting the height of work tables, platforms, and stages
  • Controlling the position of heavy machinery or equipment
  • Applying force for testing and calibration
  • Generating linear motion in mechanical systems

What is the working principle of screw jack?

screw jack

The working principle of a screw jack is based on the fundamental property of a screw to convert rotational motion into linear motion. It consists of a threaded screw shaft and a nut that moves along the screw under the action of an external force. When the screw shaft is rotated, the nut moves linearly along the shaft, resulting in a lifting or lowering motion of the load. The amount of force generated by the screw jack depends on the pitch of the screw and the mechanical advantage of the jack.

What is the difference between a screw jack and a hydraulic jack?

The main difference between a screw jack and a hydraulic jack is the method used to generate the lifting force. While a screw jack uses a screw thread to lift a load, a hydraulic jack uses hydraulic fluid to generate pressure and lift the load. Screw jacks are generally slower and have a lower lifting capacity than hydraulic jacks, but they are more precise and require less maintenance.

How to choose or customize the right screw jack?

screw jack

When choosing or customizing a screw jack, the following parameters and conditions should be considered:

  • Load capacity and lifting height requirements
  • Maximum and minimum operating temperatures
  • Environmental conditions, such as dust, moisture, and corrosive agents
  • Speed and precision requirements
  • Power source and control system

A professional screw jack supplier can help you select or customize the right jack for your specific application and requirements.

HZPT – Your Reliable Screw Jack Supplier

As a leading manufacturer of industrial motors, gearboxes, and drive systems, HZPT offers a wide range of screw jacks that are designed and built to meet the most demanding industrial applications. Here are some of the advantages of our products and services:

  • High-quality materials and components that ensure reliable and long-lasting performance
  • Customizable designs that can be tailored to your specific requirements
  • Competitive pricing that offers the best value for your investment
  • Fast and flexible delivery options that minimize downtime and maximize productivity
  • Professional technical support and after-sales service that ensure your satisfaction

Contact us today to learn more about our screw jack products and services, and discover how we can help you achieve your industrial goals with confidence and ease.


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Ep Screw Jack Co., Ltd.

Mail: [email protected]

As one of leading manufacturers, suppliers and exporters of mechanical products in China, We offer reducers, sprockets, industrial and conveyor chain, belts, pulleys, gears, racks, gearboxes, motors, PTO Shafts, taper lock Bushing, vacuum Pumps, screw air compressors and many other products. Please contact us for details.