screw jack for house leveling

screw jack for house leveling

Screw Jack for House Leveling


A screw jack is a mechanical device used in various applications, including house leveling. It consists of a threaded rod (screw) and a movable platform (jack) that moves linearly when the screw is rotated. In this article, we will explore the uses, working principle, differences from hydraulic jacks, and how to choose the right screw jack for your needs.

screw jack

What is a screw jack used for?

1. House Leveling: Screw jacks are commonly used in construction to lift and level houses. They provide support and stability by adjusting the height of the foundation.

2. Stage and Theater Equipment: Screw jacks are used in stage productions to raise and lower heavy equipment, such as lighting rigs and props.

3. Mechanical Engineering: Screw jacks are employed in various mechanical systems, such as conveyors, lifts, and presses, to achieve precise linear motion and force control.

4. Industrial Machinery: Screw jacks are used in industrial machinery for positioning, lifting, and load handling applications.

screw jack

What is the working principle of screw jack?

1. Mechanical Advantage: Screw jacks use a mechanical advantage to convert rotational motion into linear motion, allowing for heavy loads to be lifted with less effort.

2. Thread Pitch: The pitch of the screw determines the distance the jack moves for each revolution of the screw. A finer pitch provides greater precision but requires more rotations to achieve the desired height adjustment.

3. Worm Gear: Screw jacks often incorporate a worm gear mechanism, which consists of a screw and a worm wheel. The worm wheel translates the rotational motion of the screw into linear motion of the jack.

4. Load Capacity: The load capacity of a screw jack depends on the size and strength of the components, such as the screw diameter, material, and design.

screw jack

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

1. Power Source: Screw jacks are manually operated or driven by an electric motor, while hydraulic jacks utilize hydraulic pressure to lift heavy loads.

2. Speed of Operation: Hydraulic jacks can lift loads quickly due to the high-pressure fluid, while screw jacks have a slower lifting speed.

3. Precision: Screw jacks offer more precise height adjustments compared to hydraulic jacks, making them suitable for applications that require accuracy.

4. Maintenance: Screw jacks are generally easier to maintain and repair due to their simpler mechanical design, whereas hydraulic jacks require regular fluid checks and potential hydraulic system repairs.

How to choose or customize the right screw jack?

1. Load Capacity: Determine the maximum load the screw jack needs to support. Consider factors such as the weight of the load and any additional force or impact it may experience.

2. Travel Distance: Calculate the required travel distance or height adjustment range needed for your specific application.

3. Operating Speed: Evaluate the desired lifting speed and determine if a manual or motorized screw jack is more suitable.

4. Environmental Conditions: Consider the operating environment, including temperature, humidity, and exposure to corrosive substances, to ensure the screw jack’s durability.

5. Mounting Options: Determine how the screw jack will be mounted or integrated into your system, considering factors such as space limitations and load distribution.

screw jack

About HZPT

As a leading manufacturer of industrial motors, gearboxes, and drives in China, HZPT is committed to technological innovation and excellent quality. Our product range includes micro gear motors, medium gear motors, brake speed-adjustable motors, torque motors, DC motors, NMRV worm gear reducers, bevel gear cone gear motors, WPRV worm gear reducers, rigid tooth surface bevel gear reducers, helical gear worm gear reducers, parallel-axis helical gear reducers, spiral bevel gear reducers, worm gear screw lifts, rigid tooth surface gear reducers, and planetary gear reducers.

Our transmission 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 instruments. They are the preferred choice for automated equipment.

Why choose HZPT?

1. High-Quality Products: We offer reliable and durable screw jacks that meet international standards, ensuring long-lasting performance.

2. Customization Options: Our screw jacks can be customized to fit specific requirements, allowing for precise integration into your application.

3. Technical Expertise: HZPT has a team of experienced engineers who can provide technical support and guidance in selecting the right screw jack.

4. Competitive Pricing: We offer competitive prices without compromising on quality, making our products cost-effective for various industries.

5. Excellent Customer Service: Our dedicated customer service team is ready to assist you with any inquiries or support you may need.


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.