Horizontal jacks belong to hydraulic jacks, but they do not rely entirely on the power of hydraulic oil pumps. In the process of lifting heavy objects, mechanical energy is also used.

When we manually press the handle of the horizontal jack, mechanical energy is converted into pressure energy, which acts on the hydraulic oil pump. The oil transmits strong hydraulic power, which is then converted into mechanical energy of the electric working mechanism. Therefore, in the process of lifting heavy objects, it is also necessary to consider the faults caused by oil leakage.

The process of transmitting force inside a horizontal jack will only increase the force, and it is often used to lift large vehicles, equipment, underground tracks, etc. Because of its simple structure, easy carrying, and no need for personnel to lie down under the car, this type of jack has become a commonly used lifting tool in auto repair shops and is loved by car maintenance personnel.

If compared with other types of jacks, horizontal jacks are more labor-saving under the same lifting weight, because when operating this type of jack, the person is in a standing state, while other jacks are in a squatting state. The human body is more labor-saving in a standing state than in a squatting state, and the same principle applies to inflating tires.