Hydraulic Elevator

A hydraulic elevator is driven through the use of an electric pump to move a hydraulic jack. The large capacity of the elevator makes it suitable for transporting heavy loads. Hydraulic elevators are elevators which are powered by a piston that travels inside a cylinder. An electric motor pumps hydraulic oil into the cylinder to move the piston. The piston smoothly lifts the elevator cab. Electrical valves control the release of the oil for a gentle descent.

Freight elevators are designed to move goods and materials throughout a building. Compared to passenger elevators, freight cars travel at slower speeds, can carry much heavier loads and are designed to withstand tougher working conditions.An elevator is not always designed to carry passengers. There are elevators specifically designed to transport material goods and referred to as freight elevators.