electric screw lift

Electric Screw Lift: The Ultimate Guide

screw jack

An electric screw lift, also known as a screw jack, is a versatile and reliable lifting mechanism that is commonly used in various industrial applications. In this guide, we will discuss the working principle of screw jacks, their applications, differences between screw jacks and hydraulic jacks, how to choose the right screw jack for your needs, and why you should consider purchasing from HZPT – a leading manufacturer of screw jacks and other transmission products.

What is a Screw Jack used for?

screw jack

Screw jacks are used for various lifting and positioning applications, such as moving heavy machinery, adjusting the height of workbenches and platforms, and lifting vehicles for maintenance purposes. Here are some of the most common uses of screw jacks:

  • Industrial machinery lifting and positioning
  • Height adjustment of workstations and platforms
  • Material handling and transportation
  • Vehicles and heavy equipment maintenance
  • Load testing

What is the working principle of screw jack?

screw jack

The working principle of a screw jack is based on the concept of a screw and nut mechanism that converts rotary motion to linear motion. The screw jack consists of a screw and a nut that engage with each other. As the screw rotates, it moves linearly and pushes the load attached to it. The ratio of the screw pitch to the circumference of the screw determines the linear motion per revolution of the screw.

The load capacity of the screw jack depends on the pitch of the screw, the diameter of the screw, and the number of threads on the screw. The screw jack can be driven by various power sources, including electric motors, manual cranks, or hydraulic power units.

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

While both screw jacks and hydraulic jacks are used for lifting and positioning applications, they differ in their operating principles, load capacity, and speed. Here are some of the key differences between the two:

  • Operating principle: Screw jacks use a screw and nut mechanism to convert rotary motion to linear motion, while hydraulic jacks use hydraulic fluid pressure to lift the load.
  • Load capacity: Screw jacks have a lower load capacity compared to hydraulic jacks, but they are more precise and can lift heavier loads with multiple jacks.
  • Speed: Hydraulic jacks can lift loads faster than screw jacks, but they require a power source to operate.
  • Cost: Screw jacks are generally less expensive than hydraulic jacks, and they require less maintenance.

How to choose or customize the right screw jack?

screw jack

When selecting or customizing a screw jack, there are several key parameters that you need to consider to ensure that the jack meets your application requirements:

  • Load capacity: Determine the maximum load that the screw jack will need to lift. This will help you choose the appropriate screw diameter, pitch, and number of threads.
  • Lifting height: Determine the maximum height that the screw jack will need to lift the load. This will help you choose the appropriate screw length and stroke.
  • Operating speed: Determine how fast you need the screw jack to lift the load. This will help you choose the appropriate gear ratio and screw pitch.
  • Operating environment: Determine the operating temperature, humidity, and other environmental factors that the screw jack will be exposed to. This will help you choose the appropriate materials and coatings for the screw and nut.
  • Mounting options: Determine how you will mount the screw jack to your application, whether it is horizontal or vertical. This will help you choose the appropriate mounting brackets and accessories.

Why choose HZPT for your screw jack needs?

As a leading manufacturer of transmission products, HZPT offers a wide range of high-quality screw jacks that are designed to meet the needs of various industrial applications. Here are some of the key advantages of choosing HZPT:

  • Customization: HZPT can customize a screw jack to meet your specific application requirements, including load capacity, lifting height, and operating speed.
  • Quality: HZPT uses high-quality materials and components to ensure that every screw jack meets strict quality standards and provides reliable performance.
  • Expertise: HZPT has a team of experienced engineers and technicians who can provide technical support and guidance throughout the design and manufacturing process.
  • Cost-effectiveness: HZPT offers competitive pricing for its screw jacks, making them a cost-effective solution for your lifting and positioning needs.
  • Warranty: HZPT offers a warranty for its screw jacks, giving you peace of mind and assurance that you are investing in a high-quality product.

If you are looking for a reliable and high-quality screw jack for your industrial application, look no further than HZPT. Contact us today to learn more about our products and services.


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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.