screw jack lever

Screw Jack Lever


A screw jack lever is a versatile mechanical device used for lifting heavy loads or applying great force through linear motion. It consists of a screw mechanism and a lever handle, allowing for efficient and controlled movement. In this article, we will explore the various aspects of screw jack levers, their applications, working principles, and how to choose the right one for your specific needs.

screw jack

What is a screw jack used for?

– Industrial lifting: Screw jack levers are commonly used in industries such as construction, manufacturing, and transportation for lifting heavy objects, adjusting heights, and supporting structures.
– Mechanical presses: Screw jack levers can be employed in mechanical presses to generate and control the force required for operations like punching, pressing, and forming.
– Material handling: Screw jack levers are used in material handling equipment like conveyors and loaders to raise or lower goods, facilitating efficient movement and storage.
– Positioning systems: Screw jack levers find applications in various positioning systems, such as stage platforms, camera mounts, and adjustable worktables, enabling precise adjustments and stability.
– Rehabilitation equipment: Screw jack levers are utilized in medical and rehabilitation equipment for patient lifts, adjustable beds, and therapy tables, providing safe and controlled movements.

screw jack

What is the working principle of screw jack?

The working principle of a screw jack is based on the translation motion of the screw. When the lever handle is rotated, the screw translates linearly, allowing the load to be lifted or lowered. This motion is achieved due to the interaction between the screw threads and the mating nut. As the screw rotates, it moves through the nut, creating axial movement of the load. The mechanical advantage of the screw jack lever allows for a significant force multiplication, making it ideal for heavy-duty applications.

screw jack

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

– Power source: A screw jack lever operates through mechanical means, utilizing rotational force applied to the lever handle. On the other hand, a hydraulic jack uses hydraulic fluid and pressure to generate force and achieve lifting or lowering.
– Load capacity: Screw jack levers are capable of handling larger loads compared to hydraulic jacks, making them suitable for heavy-duty applications.
– Speed and control: Hydraulic jacks offer faster lifting and lowering speeds, along with precise control over the movement. Screw jack levers, although slower, provide greater stability and accuracy in positioning.

Choosing and Customizing the Right Screw Jack

When selecting or customizing a screw jack, it is important to consider the following parameters and practical conditions:

1. Load capacity: Determine the maximum weight the screw jack needs to lift or support.
2. Travel distance: Define the required vertical movement range.
3. Operating speed: Consider the desired speed for lifting or lowering the load.
4. Environmental conditions: Evaluate factors like temperature, humidity, and exposure to chemicals or dust.
5. Mounting options: Choose the appropriate mounting configuration based on the application requirements.

screw jack

As a leading manufacturer of industrial motors, gearboxes, and drive systems in China, HZPT adheres to the philosophy of “leading technological innovation for outstanding quality.” Our range of products includes micro gear motors, medium-sized gear motors, brake-adjustable speed motors, torque motors, DC motors, NMRV worm gearboxes, bevel gearboxes, WPRV worm gear reducers, rigid face gear reducers, helical-worm gear reducers, parallel-shaft helical gear reducers, spiral bevel gear reducers, worm gear screw lifts, rigid face gear reducers, and 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 instrumentations. We are the preferred choice for automation equipment.

Our screw jacks are designed and manufactured with utmost precision to meet the demanding requirements of various applications. Here are five key advantages of our products and company:

1. High load capacity: Our screw jacks are built to handle heavy loads and provide reliable lifting or supporting capabilities.
2. Robust construction: We use high-quality materials and advanced manufacturing techniques to ensure durability and long service life.
3. Precision positioning: Our screw jacks offer precise positioning and stability, ensuring accurate adjustments and smooth operations.
4. Customization options: We understand that every application is unique, and we offer customization services to meet specific requirements.
5. Expert support: Our team of experienced professionals provides technical assistance and guidance to help you choose the right screw jack for your needs.

Contact us today to explore our wide range of screw jack lever solutions and experience the reliability and performance of HZPT products.


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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.