screw jack rod

screw jack rod


The screw jack rod is an essential component in the field of mechanical engineering. It plays a crucial role in various applications, providing a reliable and efficient solution for lifting heavy loads. In this article, we will explore the key aspects of screw jack rods, including their applications, working principles, and the difference between screw jacks and hydraulic jacks. Additionally, we will discuss how to choose or customize the right screw jack for specific requirements and conditions. Let’s dive into the details.

screw jack

What is a screw jack used for?

– Precision lifting in industrial machinery: Screw jacks are widely used in various industries to provide precise and controlled lifting and positioning of heavy loads. They are commonly found in manufacturing, construction, and automotive sectors.

– Height adjustment in ergonomic workstations: Screw jacks are utilized in ergonomic workstations to allow height adjustments, ensuring optimal comfort and efficiency for workers.

– Load stabilization in stage equipment: In the entertainment industry, screw jacks are employed in stage equipment to stabilize and adjust the height of platforms, ensuring smooth performances and safety for performers.

– Pressing and pressing force control: Screw jacks are utilized in pressing applications, providing accurate force control for operations such as pressing, riveting, and joining components together.

– Load testing and calibration: Screw jacks are used in load testing and calibration processes to apply controlled forces and measure the performance and capabilities of structures and machinery.

screw jack

What is the working principle of screw jack?

The working principle of screw jacks is based on the conversion of rotary motion into linear motion using a screw mechanism. Here are the key points to understand:

– Input torque: By applying torque to the input shaft, the screw jack transfers the rotational energy to the screw mechanism.

– Screw mechanism: The screw jack consists of a worm screw and a worm gear. As the input torque rotates the worm screw, it engages with the worm gear, causing the linear motion of the screw.

– Load transfer: The linear motion of the screw is then used to move the load vertically or horizontally, depending on the screw jack configuration.

– Mechanical advantage: Screw jacks provide mechanical advantage by utilizing the thread pitch of the screw, allowing for efficient lifting of heavy loads with relatively low input torque.

screw jack

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

While both screw jacks and hydraulic jacks serve the purpose of lifting heavy loads, they operate on different principles:

– Operating mechanism: Screw jacks use a screw mechanism to achieve lifting, whereas hydraulic jacks rely on fluid pressure to generate force.

– Lifting capacity: Screw jacks are typically designed for heavy-duty applications, capable of lifting loads ranging from a few hundred kilograms to several tons. Hydraulic jacks, on the other hand, can handle much larger loads, often exceeding hundreds of tons.

– Speed and precision: Screw jacks provide slower but more precise and controlled lifting. Hydraulic jacks offer faster operation but with slightly less precision.

– Maintenance and durability: Screw jacks generally require less maintenance and have a longer lifespan compared to hydraulic jacks, as they have fewer moving parts and are not prone to hydraulic fluid leaks.

– Environmental considerations: Screw jacks are more environmentally friendly as they do not require hydraulic fluid, which can pose environmental risks if leaked.

Choosing and customizing the appropriate screw jack

When selecting or customizing a screw jack, it is essential to consider various parameters and actual conditions:

– Load capacity: Determine the maximum load the screw jack needs to lift to ensure it can handle the required weight.

– Travel distance: Evaluate the vertical or horizontal travel distance needed for the application and select a screw jack with an appropriate stroke length.

– Operating speed: Consider the desired speed of lifting or lowering the load and choose a screw jack with a suitable gear ratio.

– Environmental factors: Assess the operating environment, including temperature, humidity, and exposure to contaminants, and select a screw jack with suitable protective features.

– Mounting options: Determine the mounting configuration required for the specific application, such as top mounting, bottom mounting, or side mounting.

screw jack

As a leading manufacturer of industrial motors, gear reducers, and drives, HZPT upholds the philosophy of “leading technological innovation and achieving excellent quality.” Our range of products includes:

– Micro gear motors
– Medium-sized gear motors
– Brake speed controllers
– Torque motors
– DC motors
– NMRV worm gear motors
– Bevel gear motors
– WPRV worm gear reducers
– Rigid face gear reducers
– Worm gear screw reducers
– Parallel shaft bevel gear reducers
– Helical bevel gear reducers
– Worm gear screw lifts
– Rigid face gear lifts
– Planetary gear reducers

These transmission products are widely used in various industrial production lines, including transportation machinery, food machinery, medical machinery, printing machinery, textile machinery, packaging machinery, office equipment, and instrumentation. They are the preferred supporting products for automation equipment.

To meet your specific needs, we offer a wide range of screw jacks that are designed to provide reliable and precise lifting capabilities. Our products have the following advantages:

1. High load capacity: Our screw jacks are engineered to handle heavy loads, ensuring optimum performance and safety.

2. Precision and control: With precise screw mechanisms, our screw jacks offer accurate and controlled lifting, allowing for fine adjustments.

3. Durability: Our screw jacks are built to withstand demanding industrial environments, ensuring long-lasting performance and minimal maintenance requirements.

4. Customizability: We understand that each application has unique requirements. Therefore, we offer customization options to tailor our screw jacks according to your specific needs.

5. Expert support: Our team of experts is dedicated to providing technical assistance and guidance to help you select the right screw jack for your application.

Partner with HZPT for your screw jack needs and experience the reliability and performance of our products. Contact us today to discuss your requirements and explore the possibilities of collaboration.


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.