thomson screw jack

Thomson Screw Jack: A Comprehensive Guide to Its Application and Working Principle

screw jack

What is a Screw Jack Used For?

Screw jacks are widely used in various industries for achieving linear motion. With the help of a motor, the screw jack converts rotary motion into linear motion to lift or lower heavy loads.

1. Lifting Heavy Loads

screw jack

A screw jack is mainly used for lifting heavy loads, especially in the automotive and construction industries. It is also used in shipbuilding, where it helps to lift the ship’s hull for maintenance and repair work.

2. Height Adjustment

Screw jacks are used for height adjustment in various applications, such as stage and theater lifts, conveyor systems, and solar panels. They are also used in the medical industry, where they help adjust the height of hospital beds and operating tables.

3. Load Positioning

Screw jacks are used for precise load positioning, such as in the assembly of heavy machinery and equipment. They are also used in the food processing industry to adjust the height of conveyor belts and production lines.

4. Door and Window Mechanisms

Screw jacks are used in door and window mechanisms for opening and closing, as well as for adjusting the position of the windows and doors.

5. Industrial Automation

In industrial automation, screw jacks are used in robotic arms and other machinery to precisely control movement and positioning.

What is the Working Principle of Screw Jack?

screw jack

The working principle of a screw jack is based on the law of the machine, which states that work output equals work input. The screw jack converts rotary motion into linear motion by turning the screw. The screw moves through the threaded nut, which is connected to the load, and lifts or lowers it.

1. Advantages

The screw jack has several advantages, such as:

  • Precision and accuracy in load positioning
  • High load capacity
  • Simple design and low maintenance
  • Easy installation and operation

2. Difference between Screw Jack and Hydraulic Jack

The main difference between a screw jack and a hydraulic jack is the mode of operation. A screw jack uses a mechanical screw and a motor to lift or lower heavy loads, while a hydraulic jack uses hydraulic fluid and a pump to generate pressure and lift the load. Screw jacks are more precise and have a higher load capacity, while hydraulic jacks are more convenient and easier to operate.

How to Choose or Customize a Suitable Screw Jack?

screw jack

When choosing or customizing a screw jack, the following factors should be considered:

1. Load Capacity

The load capacity of the screw jack should be sufficient to lift or lower the load. The load capacity depends on the diameter and pitch of the screw, as well as the strength of the material.

2. Stroke Length

The stroke length of the screw jack should be sufficient to achieve the desired height adjustment. The stroke length depends on the length of the screw and the number of threads.

3. Speed

The speed of the screw jack should be suitable for the application. The speed depends on the rotational speed of the motor and the pitch of the screw.

4. Environmental Conditions

The screw jack should be designed to withstand the environmental conditions of the application, such as temperature, humidity, and corrosive substances.

5. Safety Features

The screw jack should have safety features, such as limit switches and overload protection, to prevent accidents and damage to the equipment.

About HZPT Screw Jack

screw jack

As a leading manufacturer of industrial motors, gearboxes, and drives, HZPT specializes in the production and sales of screw jacks for various industries. Our screw jacks have the following advantages:

1. High Precision and Load Capacity

Our screw jacks are designed to provide high precision and accuracy in load positioning, with a load capacity of up to 100 tons.

2. Customizable Options

We offer customizable options to meet the specific needs of our customers, such as stroke length, speed, and load capacity.

3. Durable and Reliable

Our screw jacks are made of high-quality materials and are designed to withstand harsh environmental conditions and heavy loads, ensuring durability and reliability.

4. Easy to Install and Maintain

Our screw jacks are easy to install and maintain, with a simple design and low maintenance requirements.

5. Competitive Pricing

We offer competitive pricing for our screw jacks, without compromising on quality or performance.

Contact us today to learn more about our screw jacks and how we can help you with your lifting and positioning needs.


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.