What is a Hydraulic pump?

A hydraulic pump is a device that pressurizes liquid (mainly hydraulic oil) to supply energy to a hydraulic system. It is widely used in construction machinery, industrial machinery, machine tools, automobiles, and aircraft, playing a crucial role in driving hydraulic cylinders and motors. There are two main types of hydraulic pumps: positive displacement and non-positive displacement. The most commonly used type is positive displacement pumps, which include gear pumps, vane pumps, and piston pumps. Gear pumps are simple and durable, vane pumps operate with low noise and high efficiency, and piston pumps provide high-pressure performance with precise control.

Selecting the right hydraulic pump requires considering factors such as required pressure, flow rate, application, and type of hydraulic fluid. Choosing the appropriate pump ensures efficient and stable hydraulic system operation.

Application of Hydraulic pump

✅Hydraulic Pump in Excavators
Excavators use hydraulic pumps to operate their arms and buckets. The pump converts engine power into hydraulic energy, allowing the hydraulic cylinders to perform digging and lifting tasks.
✅Hydraulic Pump in Forklifts
Forklifts use hydraulic pumps to lift and lower pallets and cargo. Gear pumps and vane pumps are commonly used, ensuring smooth and efficient lifting operations.
✅Power Steering Pump in Automobiles
In vehicles, the power steering system uses a hydraulic pump (typically a vane pump) to assist steering, making it easier to turn the wheel. While electric power steering (EPS) is becoming common, hydraulic systems are still widely used in trucks and heavy-duty vehicles.
✅Hydraulic Pump in Injection Molding Machines
Injection molding machines use high-pressure hydraulic pumps to inject molten plastic into molds. Piston pumps are preferred for their high precision, ensuring consistent molding pressure.
✅Hydraulic Pump in Aircraft
Aircraft use hydraulic pumps to control flaps (wing angle adjustments) and landing gear operations. Lightweight and high-pressure piston pumps are essential for stable performance during flight.

※Includes information on some trading companies