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Screw Jack – A Comprehensive Guide

Jack Car Metal Screw

What is a screw jack used for?

A screw jack is a mechanical device used for lifting heavy loads vertically or horizontally. It finds applications in various industries, including automotive, construction, and manufacturing.

Here are several uses of a screw jack:

  • Supporting structures during construction
  • Positioning heavy machinery
  • Adjusting the height of workbenches or platforms
  • Raising or lowering vehicles for maintenance
  • Stabilizing structures during repair or installation

screw jack

What is the working principle of screw jack?

A screw jack operates based on the principle of a rotating screw moving through a nut. When the screw rotates, it advances or retracts, allowing the load to be lifted or lowered.

The working principle involves converting rotational motion into linear motion using the threads of the screw and the nut. The force applied to the screw is amplified to lift heavier loads with ease.

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.

Here are the main differences:

  • Screw jacks use mechanical force and the rotation of a screw, while hydraulic jacks rely on hydraulic fluid and pressure.
  • Screw jacks are slower but can handle heavier loads, whereas hydraulic jacks are faster but have a lower load capacity.
  • Screw jacks require less maintenance and are more cost-effective in the long run.
  • Hydraulic jacks offer more precise control over the lifting process.
  • Screw jacks are better suited for applications where continuous lifting or holding is required.

How to choose or customize the right screw jack?

When selecting or customizing a screw jack, several parameters and practical factors need to be considered:

  • Load capacity: Determine the maximum weight the screw jack needs to support.
  • Travel length: Define the required vertical or horizontal travel distance.
  • Lifting speed: Consider the desired lifting speed for the application.
  • Environmental conditions: Assess factors such as temperature, humidity, and dust exposure.
  • Mounting options: Evaluate the available space and the most suitable mounting configuration.

screw jack

As a leading manufacturer of industrial motors, gearboxes, and drives, HZPT is dedicated to technological innovation and excellent quality.

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Our 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 choice for automated equipment.

Here are five key advantages of our products and company:

  • Advanced technology: Our products incorporate the latest advancements in motor and gearbox design.
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  • Excellent customer support: We provide comprehensive technical assistance and prompt after-sales service.

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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.