50 Ton Hydraulic Jack with Pump

Types of Hydraulic Jacks

Two common types of hydraulic jacks include bottle jacks and floor jacks.

Bottle Jacks

Bottle jacks became popular in the early 1900s when the automobile industry began to take off. Also called hand jacks, bottle jacks provided an easy way for an individual to lift a vehicle for roadside inspection or service. The design of the hydraulic bottle jack resembles a milk bottle, thus earning bottle jacks their name—today, they range in size and lifting capability from one hundred pounds to several tons. How does a bottle jack work? Bottle jacks feature a vertical shaft, which supports a platform (called a bearing pad) that directly bears the weight of the object as it is lifted.

Although they are most commonly used in the automobile industry (1.5 to 5-ton jacks are the range of capacities typically used to lift cars), bottle jacks have other uses as well. In the medical industry, they can be used in hydraulic stretchers and patient lifts. In industrial applications, they can be found as pipe benders used in plumbing, in cable slicers for electrical projects, and as material lifts within warehouses. Their ability to lift heavy loads plays a big role in enabling the repair of large agricultural machinery and in many construction operations. Bottle jacks can be secured within a frame, mounted on a beam, or simply used as free-standing to allow for repositioning as needed.

Floor Jacks

What is a floor jack? Unlike bottle jack shafts which operate vertically, the shaft in a floor jack is horizontal—the shaft pushes on a crank that connects to a lifting pad, which is then lifted vertically. Floor jacks typically provide a greater range of vertical lift than bottle jacks and are available in two sizes. The original jack is about four feet long, a foot wide, and weighs around 200 pounds—they can lift 4-10 tons. A more compact model was later made, which is about three feet in length and can lift 11/2 tons. Although “mini jacks” are also produced, they are not a recognized standard type of floor jack. Typically, one of the first two sizes should be used.

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