compact screw jack

Compact Screw Jack

Compact Screw Jack


A compact screw jack is a versatile mechanical device used for linear motion, force transmission, and load lifting in various industries. It consists of a screw mechanism, a lifting nut, and a gearbox enclosure. This article provides an in-depth exploration of the compact screw jack, its applications, working principles, and how to select or customize the right screw jack for specific needs.

What is a screw jack used for?

A screw jack finds extensive use in different industries due to its ability to efficiently lift heavy loads and provide precise linear motion. Here are some key applications of a screw jack:

  • Industrial machinery positioning and leveling
  • Lifting and lowering heavy structures in construction
  • Adjusting platform heights in material handling equipment
  • Actuating valves and dampers in process control systems
  • Supporting and adjusting equipment in medical and laboratory settings

screw jack

What is the working principle of screw jack?

The working principle of a screw jack is based on the mechanical advantage gained through the rotation of a screw mechanism. It converts the rotational motion of the input shaft into linear motion of the lifting nut. The key components and working steps are as follows:

  1. Rotating the input shaft causes the screw to move linearly.
  2. The lifting nut, which is threaded onto the screw, moves along with the screw.
  3. This linear motion of the lifting nut translates to the desired vertical movement of the load.
  4. The gearbox enclosure provides protection, support, and lubrication to the screw mechanism.

screw jack

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

While both screw jacks and hydraulic jacks are used for lifting heavy loads, they differ in their operating mechanisms and characteristics. Here are some key differences:

  • Screw jacks use a mechanical advantage gained from a screw mechanism, while hydraulic jacks utilize fluid pressure.
  • Screw jacks offer precise and controlled linear motion, while hydraulic jacks provide faster and more powerful lifting.
  • Screw jacks are generally more compact and easier to maintain, while hydraulic jacks require hydraulic fluid and more complex components.

How to choose or customize the right screw jack?

Choosing or customizing the right screw jack involves considering various parameters and practical conditions. Here are some important factors to consider:

  1. Load capacity: Determine the maximum load the screw jack needs to lift or support.
  2. Travel length: Define the required linear motion distance for the application.
  3. Operating speed: Consider the desired speed of vertical movement for efficient operation.
  4. Environmental conditions: Evaluate factors like temperature, dust, humidity, and corrosion to select appropriate materials and protection options.
  5. Mounting options: Determine the best mounting configuration based on available space and installation requirements.

screw jack

Discover the Advantages of our Screw Jack

As a leading manufacturer of industrial motors, gearboxes, and drive systems, HZPT offers a wide range of high-quality screw jacks. Here are five key advantages of our products and company:

  1. Advanced technology: Our screw jacks incorporate cutting-edge design and technology for optimal performance and reliability.
  2. Diverse product range: We provide a comprehensive selection of screw jacks with varying load capacities, travel lengths, and operating speeds to meet diverse application requirements.
  3. Customization options: We offer the flexibility to customize screw jacks based on specific customer needs, including load capacity, mounting options, and environmental considerations.
  4. Superior quality: Our screw jacks are manufactured using high-quality materials and undergo rigorous quality control measures to ensure long-lasting durability and precision.
  5. Extensive industry experience: With years of experience in the industry, we have a deep understanding of customer needs and provide reliable solutions that meet or exceed expectations.

Partner with HZPT for all your screw jack needs and experience the difference our high-quality products and expert services can make in optimizing your industrial processes.

screw jack


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.