starrett 190a little giant jack screw




Starrett 190A Little Giant Jack Screw

Starrett 190A Little Giant Jack Screw

The Starrett 190A Little Giant Jack Screw is a versatile tool that can be used for a variety of applications. It is a precision instrument that provides accurate and reliable support for a range of loads, and is commonly used in engineering, manufacturing, and construction projects. In this article, we will explore the various features and benefits of the Starrett 190A Little Giant Jack Screw, as well as its applications and working principles.

What is a screw jack used for?

  • Heavy Machinery Lifting
  • Positioning of Large Components
  • Adjusting Height of Platforms and Tables
  • Stabilizing Objects during Machining
  • Welding and Assembly Work

screw jack

Screw jacks are widely used in a variety of applications, including heavy machinery lifting, positioning of large components, adjusting the height of platforms and tables, stabilizing objects during machining, welding, and assembly work. Screw jacks are particularly useful in situations where precise vertical movement is required, and where other lifting and positioning methods are not suitable.

What is the working principle of screw jack?

The working principle of a screw jack is based on the conversion of rotary motion into linear motion. The screw jack consists of a threaded screw that is attached to a nut. When the screw is rotated, it moves the nut up or down, depending on the direction of the rotation. This linear motion can be used to lift or lower heavy loads, and provides precise and reliable positioning of components and machinery.

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 in which they create force. A screw jack uses mechanical force to lift and lower objects, while a hydraulic jack uses fluid pressure. Screw jacks are typically used for lighter loads and more precise positioning, while hydraulic jacks are better suited for heavier loads and faster lifting speeds.

How to choose or customize the appropriate screw jack?

  • Load Capacity: Determine the maximum load capacity required for the application.
  • Screw Pitch: Choose the appropriate screw pitch, which determines the amount of linear movement produced per revolution of the screw.
  • Lifting Speed: Determine the required lifting speed, which determines the amount of time required to raise or lower a load.
  • Operating Environment: Consider the operating environment, including temperature, humidity, and exposure to chemicals or other corrosive substances.
  • Mounting Options: Choose the appropriate mounting options, including base mounting, flange mounting, or threaded mounting.

screw jack

Why choose HZPT screw jack?

As a leading manufacturer of industrial motors, reducers, and drives, HZPT offers a range of high-quality screw jacks that are ideal for a variety of applications. Here are five reasons to choose HZPT screw jacks:

  • High Load Capacity: HZPT screw jacks are designed to handle heavy loads with ease, making them ideal for a range of industrial applications.
  • Precision Performance: With their precise linear movement and reliable positioning capabilities, HZPT screw jacks ensure accurate and consistent results every time.
  • Durable Construction: Made from high-quality materials, HZPT screw jacks are durable and long-lasting, even in challenging industrial environments.
  • Customizable Design: HZPT screw jacks can be customized to meet the specific needs of your application, ensuring maximum performance and efficiency.
  • Expert Support: With their expertise and experience, the HZPT team can provide expert advice and support to help you select and install the right screw jack for your needs.

Whether you need a screw jack for heavy machinery lifting, component positioning, or other industrial applications, HZPT has the right solution for you. Contact us today to learn more about our range of screw jacks and other industrial products.

As a professional manufacturer of screw jacks, we are committed to providing high-quality products and excellent service to our customers. Contact us today for more information on how we can help you with your industrial needs.

At HZPT, we are dedicated to leading technological innovation and achieving excellent quality. Our main products include: micro reducers, medium-sized reducers, brake speed controllers, torque motors, DC motors, NMRV worm gearboxes, bevel gearboxes, WPRV worm gear reducers, rigid face helical gear reducers, helical bevel gear reducers, parallel-axis helical gear reducers, spiral bevel gear reducers, worm gear screw lifts, rigid face gear reducers, planetary gear reducers, and other transmission products, which are widely used in various industrial production lines, such as transportation machinery, food machinery, medical machinery, printing machinery, textile machinery, packaging machinery, office equipment, instruments and meters, and other fields. They are the preferred supporting products for automation equipment.


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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.