permanent screw jacks

Permanent Screw Jacks: Everything You Need to Know

Screw jacks are mechanical devices used to lift heavy loads or apply great force with minimal effort. The permanent screw jack is a type of screw jack that is designed to stay in place once installed. In this article, we will discuss the uses, working principle, differences from hydraulic jacks, and how to select and customize the right screw jack for your application.

What is a screw jack used for?

There are many applications for screw jacks, including lifting platforms, adjusting work table heights, supporting structures, and more. Here are some common uses:

  • Adjusting heavy machinery: Screw jacks can be used to raise or lower equipment for maintenance or installation purposes.
  • Stabilizing structures: Screw jacks can be used to support structures such as bridges or buildings, providing stability and security.
  • Positioning objects: Screw jacks can be used to position objects such as solar panels or telescopes for optimal performance.
  • Adjusting work table heights: Screw jacks can be used to adjust the height of work tables for ergonomic purposes.
  • Lifting platforms: Screw jacks can be used to lift platforms such as stages or lifts.

screw jack

What is the working principle of screw jack?

The working principle of a screw jack is based on the concept of a screw and nut. When a force is applied to the handle of the screw jack, the screw turns and moves the nut. This linear motion can be used to lift or lower heavy loads. Here are the main components:

  • Screw: A threaded rod that is turned by the handle.
  • Nut: A block with internal threads that moves along the screw.
  • Worm gear: A gear that meshes with the threads of the screw, transmitting the rotation to linear motion of the nut.
  • Load: The object being lifted or lowered.

screw jack

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

The main differences between a screw jack and a hydraulic jack are the power source, speed, precision, and weight. Screw jacks are manually operated and require more effort to lift heavy loads, but they offer greater precision and control. Hydraulic jacks are powered by fluid pressure and can lift heavier loads more quickly, but they are less precise and can be more difficult to control.

How to select or customize the right screw jack?

When selecting or customizing the right screw jack for your application, it is important to consider the following factors:

  • Load capacity: The maximum weight the screw jack can lift.
  • Lift height: The distance the screw jack can lift the load.
  • Screw diameter: The diameter of the screw affects the load capacity and lift speed.
  • Thread pitch: The distance between the threads of the screw affects the lift speed and precision.
  • Operating environment: The operating conditions, such as temperature, humidity, and vibration, can affect the performance and lifespan of the screw jack.

screw jack

About HZPT

HZPT is a leading manufacturer of industrial motors, gearboxes, and drives in China. Our products are known for their quality, reliability, and innovation. We offer a wide range of products, including micro gear motors, medium gear motors, brake speed-adjustable motors, torque motors, DC motors, NMRV worm gearboxes, bevel gearboxes, WPRV worm gearboxes, rigid gear face bevel gearboxes, helical bevel gearboxes, screw lift systems, rigid gear face gearboxes, and planetary gearboxes. Our products are widely used in various industries, such as transportation machinery, food machinery, medical machinery, printing machinery, textile machinery, packaging machinery, office equipment, instruments, and meters.

Why Choose HZPT?

  • Quality products: We use the latest technology and materials to create products that are durable and long-lasting.
  • Innovative solutions: We are committed to developing new products and finding innovative solutions to meet the needs of our customers.
  • Competitive pricing: We offer competitive pricing without sacrificing quality or service.
  • Expert support: Our team of engineers and technicians provides expert support to help you find the right product for your application.
  • Quick delivery: We have a large inventory of products ready for immediate shipment, ensuring quick delivery times.
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Ep Screw Jack Co., Ltd.

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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.