Screw jack for structural testing

Screw Jack for Structural Testing

Screw jacks for structural testing are widely used in the construction industry for the purpose of testing the structural strength of buildings and other structures. They are designed to provide a stable and reliable means of applying a vertical load to a structure so that its response can be accurately measured and analyzed. In this article, we will discuss the various aspects of screw jacks for structural testing, including their purpose, working principle, differences from hydraulic jacks, and how to select or customize the right screw jack for your needs. We will also introduce our company, HZPT, a leading manufacturer of screw jacks and other drive products.

What is a Screw Jack Used For?

Screw jacks are used to apply a controlled force or load to a structure or object that needs to be tested. Specifically, screw jacks for structural testing are used to apply a vertical load to a structure, such as a bridge or building, in order to test its strength and stability.

Some common applications of screw jacks for structural testing include:

  • Load testing of bridges, buildings, and other structures
  • Testing of structural components, such as columns and beams
  • Measurement of structural deflection and deformation
  • Testing of equipment, such as cranes and elevators
  • Simulation of real-world loads and conditions for analysis and design purposes

screw jack

What is the Working Principle of Screw Jack?

The working principle of a screw jack is based on the concept of a worm gear. A worm gear is a gear with a screw-like thread that meshes with a worm wheel, or worm gear. When the worm gear is rotated, it causes the worm wheel to move, resulting in a linear motion of the screw jack’s lifting mechanism.

There are several components that make up a screw jack, including the worm gear, worm wheel, lifting screw, and nut. When the worm gear is rotated, it drives the worm wheel, which in turn rotates the lifting screw. The nut, which is attached to the lifting mechanism, moves up or down the screw, depending on the direction of rotation. This movement causes the load to be lifted or lowered, depending on the direction of the force applied.

screw jack

What is the Difference Between a Screw Jack and a Hydraulic Jack?

The main difference between a screw jack and a hydraulic jack is the way in which they generate force. A screw jack uses a mechanical screw and nut mechanism to lift a load, while a hydraulic jack uses the pressure of a hydraulic fluid to generate force. Screw jacks are typically slower and more precise than hydraulic jacks, but they can also handle much heavier loads.

How to Select or Customize the Right Screw Jack?

When selecting or customizing a screw jack, there are several factors to consider, including:

  • Load capacity: The maximum weight that the screw jack can lift
  • Lifting height: The maximum distance that the screw jack can lift a load
  • Operating speed: The speed at which the screw jack can lift or lower a load
  • Environmental conditions: The temperature, humidity, and other conditions in which the screw jack will be used
  • Mounting options: The different ways in which the screw jack can be mounted or attached to a structure or object

screw jack

About HZPT

As a leading manufacturer of drive products, including screw jacks, HZPT is committed to providing our customers with the highest quality products and services. Our products are widely used in various industrial production lines, such as transportation machinery, food machinery, medical machinery, printing machinery, textile machinery, packaging machinery, office equipment, and instrumentation. We offer a wide range of products, including micro gear motors, medium gear motors, brake speed-regulating motors, torque motors, DC motors, NMRV worm gear motors, helical bevel gear motors, WPRV series worm gear reducers, rigid tooth surface helical gear reducers, helical-bevel gear reducers, parallel-axis helical gear reducers, spiral bevel gear reducers, worm gear screw lifts, rigid tooth surface gear reducers, planetary gear reducers, and other transmission products.

Our products are known for their high quality, reliability, and performance. We are dedicated to providing our customers with the best possible products and services, and we take pride in our ability to meet the needs of a wide range of industries and applications. Whether you need a standard product or a customized solution, we are here to help you find the right product for your needs.

Our Products and Company Advantages:

  • High-quality materials: Our products are made from high-quality materials, ensuring their durability and reliability.
  • Precision engineering: Our products are designed and manufactured with precision engineering, ensuring their high performance and accuracy.
  • Customization options: We offer a wide range of customization options, allowing you to tailor our products to your specific needs.
  • Competitive prices: We offer competitive prices on all of our products, ensuring that you get the best possible value for your money.
  • Expert support: Our team of experts is always available to provide you with the support and advice you need to find the right product for your needs.

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.