jack screw bolt

Jack Screw Bolt: The Ultimate Guide

Jack screw bolt is an essential component used in various industrial applications, including manufacturing, automation, and transportation. In this article, we will delve deeper into what jack screw bolt is, how it works, and its applications. We will also discuss the difference between a screw jack and a hydraulic jack, how to choose the right screw jack for your needs, and why you should choose HZPT as your reliable screw jack supplier.

screw jack

What Is a Screw Jack Used For?

screw jack

  • Heavy Load Lifting: Screw jacks are commonly used to lift heavy loads, such as bridges, buildings, and large machines.
  • Positioning: Screw jacks are used to position machines and equipment precisely.
  • Pressing: Screw jacks are used for pressing operations, such as crushing and grinding.
  • Crimping: Screw jacks are used for crimping operations, such as cable and wire crimping.
  • Clamping: Screw jacks are used to clamp workpieces in place during machining and assembly operations.
  • Adjustment: Screw jacks are used to adjust the height and angle of work surfaces and machines.
  • Stabilization: Screw jacks are used to stabilize structures, such as oil rigs and offshore platforms.
  • Load Testing: Screw jacks are used to test the load capacity of machines and equipment.

What Is the Working Principle of Screw Jack?

screw jack

The working principle of a screw jack is based on the principle of a simple machine called a screw. A screw is a long, inclined plane wrapped around a cylinder. When a force is applied to the screw, it moves up or down along the plane, depending on the direction of the force.

  • Input Force: The input force is applied to the screw jack using a lever or a motor.
  • Threaded Rod: The input force is transmitted to the threaded rod, which rotates, causing the lifting nut to move up or down along the rod.
  • Lifting Nut: The lifting nut moves up or down along the threaded rod, depending on the direction of the input force.
  • Load: The load is lifted or lowered by the lifting nut.
  • Output Force: The output force is the force required to lift or lower the load and is determined by the pitch of the screw and the diameter of the 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 they transmit force. A screw jack uses a mechanical screw to lift or lower a load, while a hydraulic jack uses a hydraulic cylinder to transmit force.

How to Choose or Customize the Right Screw Jack?

screw jack

Choosing the right screw jack can be a daunting task, especially with various options available. To select or customize the right screw jack, you should consider the following factors:

  • Load Capacity: The load capacity is the maximum weight the screw jack can lift or lower. Make sure to choose a screw jack with a load capacity that meets your requirements.
  • Speed: The speed is the rate at which the screw jack lifts or lowers the load. Consider the speed required for your application and choose a screw jack that meets your needs.
  • Travel Distance: The travel distance is the distance the screw jack can lift or lower the load. Choose a screw jack with a travel distance that meets your requirements.
  • Mechanical Advantages: Screw jacks come in different mechanical advantages, such as machine, ball, and cubic screw jacks. Choose a screw jack that provides the mechanical advantage you require for your application.
  • Environment: Consider the environment in which the screw jack will operate, such as temperature, humidity, and corrosion. Choose a screw jack that is suitable for your operating environment.

Why Choose HZPT as Your Reliable Screw Jack Supplier?

Our Products

  • Wide Range: We offer a wide range of screw jacks, including machine, ball, cubic screw jacks, and more, to meet various industrial needs.
  • Customization: We can customize screw jacks to meet specific customer requirements, such as load capacity, speed, and travel distance.
  • High-Quality: Our screw jacks are made of high-quality materials, such as stainless steel and carbon steel, for durability and reliability.
  • Cost-Effective: Our screw jacks provide cost-effective solutions for heavy load lifting, positioning, pressing, crimping, and clamping operations.
  • Easy Installation: Our screw jacks are easy to install and operate, requiring minimal maintenance.

Our Company

  • Experience: HZPT has over 20 years of experience in the production and supply of screw jacks, ensuring quality and reliability.
  • Expertise: We have a team of experienced engineers who can provide technical support and advice on screw jack selection and customization.
  • Customer Service: We provide excellent customer service, responding to inquiries and concerns promptly and efficiently.
  • Quality Assurance: We have a strict quality assurance system, ensuring that our products meet international standards.
  • Global Presence: HZPT has a global presence, supplying screw jacks to various industries worldwide, including transportation, manufacturing, and automation.

Choose HZPT as your reliable screw jack supplier and experience quality products and excellent customer service. Contact us today to learn more about our products and services.


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.