screw pole jack

screw pole jack


Screw pole jack is an essential device in the field of mechanical engineering. It is widely used for various purposes, including lifting heavy loads, adjusting heights, and providing mechanical support. In this article, we will explore the key aspects of screw pole jack and its applications in different industries.

What is a screw jack used for?

  • Industrial Lifting: Screw jacks are commonly employed in industrial settings for lifting heavy machinery and equipment. The precise and controlled lifting capability of screw jacks makes them ideal for this purpose.
  • Leveling and Positioning: Screw jacks are used to level and position objects or structures with great accuracy. They provide stability and ensure proper alignment, especially in applications where precision is crucial.
  • Load Balancing: Screw jacks are utilized to distribute and balance loads in various systems. By adjusting the screw jack, the weight can be evenly distributed, preventing excessive stress on specific components.
  • Support and Stabilization: Screw jacks play a vital role in providing support and stabilization to structures such as bridges, stages, and platforms. They help maintain structural integrity and ensure safety.
  • Motion Control: Screw jacks are implemented in motion control applications, enabling smooth and controlled movement in machines and systems. They offer precise positioning and adjustability, contributing to efficient operations.

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 mechanism. When rotational force is applied to the screw, the nut moves linearly along the screw, resulting in vertical displacement. This principle allows the screw jack to convert rotational motion into linear motion, enabling lifting or lowering of loads.

screw jack

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

Screw jacks and hydraulic jacks are both mechanical devices used for lifting and supporting heavy loads. However, they differ in their working principles and applications. The main differences include:

  • Power Source: Screw jacks utilize mechanical power, usually provided through manual operation or electric motor, while hydraulic jacks rely on hydraulic fluid pressure for operation.
  • Load Capacity: Screw jacks generally have lower load capacities compared to hydraulic jacks. Hydraulic jacks can handle much higher loads due to the hydraulic fluid’s ability to generate substantial force.
  • Speed and Control: Screw jacks offer slower and more controlled lifting and lowering speeds, making them suitable for applications that require precision. Hydraulic jacks can provide faster operation but may lack the same level of control.
  • Maintenance and Complexity: Screw jacks are relatively simple in design and require less maintenance compared to hydraulic jacks, which involve hydraulic systems that may require periodic servicing.

How to choose or customize the right screw jack?

When selecting or customizing a screw jack, several parameters and practical considerations need to be taken into account:

  • Load Capacity: Determine the maximum weight the screw jack needs to lift and choose a model with an appropriate load capacity to ensure it can handle the desired load.
  • Travel Distance: Consider the required vertical travel distance for the application and select a screw jack with the necessary stroke length to meet the specific needs.
  • Operating Speed: Evaluate the desired operating speed and choose a screw jack with the appropriate gear ratio to achieve the required lifting or lowering speed.
  • Environmental Factors: Consider the environmental conditions in which the screw jack will operate, such as temperature, moisture, and corrosive substances, and choose a suitable material or protective coating accordingly.
  • Mounting and Integration: Assess the space available for mounting the screw jack and ensure compatibility with the existing system or machinery for seamless integration.

screw jack

As a leading manufacturer of industrial electric motors, gearboxes, and drives, HZPT is committed to technological innovation and excellent product quality. Our range of products includes:

  • Micro Gear Motors
  • Medium Gear Motors
  • Brake Speed Control Motors
  • Torque Motors
  • DC Motors

At HZPT, we also offer innovative and reliable screw jacks that meet the highest industry standards. Our screw jacks are designed for various applications and provide exceptional performance and durability. Here are some advantages of our products:

  • High Load Capacity: Our screw jacks are engineered to handle heavy loads with ease, ensuring reliable and efficient lifting operations.
  • Precision and Control: With precise gear ratios and smooth operation, our screw jacks offer excellent control and positioning accuracy.
  • Durable Construction: Built with high-quality materials, our screw jacks are designed to withstand demanding industrial environments and provide long-lasting performance.
  • Customization Options: We offer flexible customization options to meet specific customer requirements, including load capacity, stroke length, and mounting options.
  • Expert Support: Our team of experienced professionals is dedicated to providing technical assistance, ensuring you find the perfect screw jack solution for your application.

Choose HZPT as your trusted partner for all your screw jack needs. Contact us today to discuss your requirements and experience the superior quality and performance of our products.


Find us

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.