ellis manufacturing screw jacks

Ellis Manufacturing Screw Jack

Ellis Manufacturing Screw Jack

A screw jack, also known as a jackscrew or a worm screw jack, is a mechanical device used to lift heavy loads or apply great force using only a small amount of input force. Ellis Manufacturing’s screw jacks are designed to provide precise lifting and positioning in a variety of industrial applications. In this article, we will discuss the various uses, working principles, and differences between screw jacks and hydraulic jacks, as well as how to select or customize the right screw jack for your needs.

What is a Screw Jack Used for?

screw jack

  • Heavy machinery lifting and positioning
  • Cranes and hoists
  • Adjusting height of platforms and workstations
  • Stabilizing structures during construction or repair
  • Adjusting tension in cables and wires

What is the Working Principle of Screw Jack?

screw jack

  • The input force is applied to a worm gear, which turns a worm screw
  • The worm screw then moves a lifting mechanism, usually a lead screw or ball screw
  • The lifting mechanism engages with a load, causing it to move up or down depending on the direction of the input force
  • The screw jack can be locked in place by disengaging the worm gear from the worm screw

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

  • Screw jacks use mechanical force to lift and lower loads, while hydraulic jacks rely on hydraulic fluid
  • Screw jacks are typically slower and have a lower weight capacity than hydraulic jacks
  • Screw jacks are more precise and have better positioning accuracy than hydraulic jacks
  • Screw jacks require less maintenance and are more durable than hydraulic jacks
  • Screw jacks are more compact and easier to install than hydraulic jacks

How to Select or Customize the Right Screw Jack

screw jack

  • Load capacity
  • Lifting height
  • Speed of lifting
  • Operating environment (temperature, humidity, etc.)
  • Mounting requirements

When selecting or customizing a screw jack, it is important to consider these parameters in relation to your specific application. Ellis Manufacturing offers a wide range of screw jacks and related accessories to meet your needs. Our screw jacks feature precision positioning, high efficiency, and long life. We also offer custom solutions and modifications to meet your unique requirements.

  • High load capacity up to 500 tons
  • Multiple lifting mechanisms available, including lead screws and ball screws
  • Wide range of sizes and lifting heights
  • Corrosion-resistant coatings and materials for harsh environments
  • Expert technical support and customization services

With over 20 years of experience in the industry, Ellis Manufacturing is a trusted supplier of high-quality screw jacks and related products. Contact us today to learn more about how we can help you meet your lifting and positioning needs.

About HZPT

HZPT is a leading manufacturer of industrial motors, gearboxes, and other power transmission products. Our products are widely used in various industries, such as transportation, food, medical, printing, textile, packaging, and instrumentation. We are committed to innovation, quality, and customer satisfaction, and strive to provide the best products and services to our customers.


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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.