hydraulic components for elevators

Hydraulic elevators are powered by fluid-driven pistons inside cylinders, utilizing Pascal’s principle to move cars safely in low- to mid-rise buildings. The system relies on four primary core components to control the ascent, descent, and leveling of the cabin:  

• Hydraulic Pump & Motor: Typically a screw pump powered by a submersible electric motor, this unit pressurizes and pushes hydraulic fluid (oil) from the reservoir into the cylinder.

• Valve Group: Acting as the "brain" of the system alongside the electrical panel, the valve group meticulously regulates the flow of hydraulic fluid, ensuring smooth starts, stops, and floor leveling.

• Cylinder & Piston: This is the mechanical driving mechanism. As the pump fills the cylinder with fluid, it forces the piston (ram) upward to lift the elevator cab.

• Oil Tank (Reservoir): A heavy-duty container that safely stores the hydraulic fluid required to drive the system.