The basic design of hydraulic pumps is simple, but they can be used in many ways. The basic structure of hydraulic pumps is a piston inside a cylindrical that exerts pressure on incompressible liquids (usually oil). This force is then transmitted to another piston, which will perform a useful function for you.
Because the force is often multiplied during the process, the second piston can accomplish more than the first. The relative sizes of the pistons can be extended to increase force multiplication. Oil must be free of air bubbles. This is because when there are bubbles in the oil, a lot of force is lost compressing them rather than driving the second piston.
This is not an efficient way to do things. Most pump failures result from oil contamination. To prevent oil contamination and corrosion, the oil reservoirs should be made of stainless steel or aluminum. Before you buy one, ask your hydraulic pump contractor if the hydraulic pump can contain oil in any length or shape.
This is very convenient because it can be used in almost every system design. You can branch the pipes so that the master piston can drive two or more slaves. Although you may not be aware of it, most people have a hydraulic pump. They are used in cars for their brake system.
The brake pedal pushes the master cylinder pistons, which drive two slave pistons. There's one at each end. To stop your car, these pistons press on the brake pads to the brake rotor. There are many types of hydraulic pumps. Some are manual while others are powered by compressed air, petrol or electricity.