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Screw JacksMechanical Jacks

Mechanical jacks are often found in the automotive industry for lifting automobiles and other heavy loads. Unlike a hydraulic jack, a mechanical jack uses physical means, such as a motor or hand-operated lever, to lift and lower objects. They automatically lock in place even when power is disconnected and can only be moved again when power is reapplied. This built-in safety feature makes mechanical jacks an attractive choice for many industrial applications.

Basics of Mechanical Jacks

Mechanical jacks are capable of raising heavy equipment and other loads ranging from 1.5 to 3 tons. The mechanical jack’s lift capacity rating informs the operator if it can be used as needed. Here are three common types of mechanical jacks and how each is used.

Screw Jacks

Screw jacks utilize a screw mechanism to raise and lower the load. The screw is rotated clockwise or counterclockwise and the screw threads, or the screw pitch, hold the load in place. Other kinds of mechanical screw jacks feature a screw that turns in place while a nut moves up and down.

House Jacks

These heavy-duty screw jacks are used to raise and stabilize buildings or heavy beams in construction applications, such as relocation or repairs. Wood cribbing supports the structure until the house jacks successfully lift the load to its desired height.

Scissor Jacks

Mechanical scissor jacks are most commonly used to change tires. Because scissor jacks are compact, they can be stored and transported easily in the trunk of the car. This jack features two pairs of crisscrossed arms in the shape of an “X” or a diamond. Between the two pairs of arms is a screw that, when turned, lifts or lowers the load on top of the jack.


Mechanical jacks are used in all kinds of applications, from changing stage designs to altering settings on woodworking machines to adjusting radio telescopes. In construction applications, jacks are commonly utilized to lift heavy equipment and support or lift a building during renovation or relocation. Other industries that benefit from the use of mechanical jacks include:

Mechanical Jacks from Metro Hydraulic

Now that you know the benefits, types, and applications of mechanical jacks, you may be wondering how mechanical jacks can aid in your project. Metro Hydraulic Jack Co. is proud to offer reliable, high-performance mechanical jacks to customers across a diverse range of industries. Contact us to learn how we can help with your specific application, or request a quote to get started.

Quality Services Since 1941

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For over 70 years, Metro Hydraulic Jack Company, a third-generation, family-owned and operated business, has been providing industrial hydraulic parts and equipment services to commercial, automotive, marine, refuse, and construction industries.


As a leading U.S. sales and service center, we provide an unmatched customer experience and create long-lasting professional relationships with our clients.


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