The working principle of mini hydraulic pumps is based on the process of converting mechanical energy into hydraulic energy. It is usually driven by an electric motor or engine, compressing fluid through changes in pump chamber volume, giving it pressure energy, and ultimately discharging pressure oil and sending it to actuating components (such as hydraulic cylinders, hydraulic motors, etc.). Different types of hydraulic pumps (such as gear pumps, vane pumps, plunger pumps) have different working principles, but overall they all follow this basic principle.

Mini hydraulic pumps, as a key hydraulic power component, are widely used in various situations that require hydraulic transmission. Mini hydraulic pump refers to a hydraulic pump that is relatively small in size, light in weight, and easy to carry and install. According to the different driving methods and structural forms, mini hydraulic pumps can be divided into manual hydraulic pumps, electric hydraulic pumps, pneumatic hydraulic pumps, and plunger hydraulic pumps. Among them, electric hydraulic pumps are the most common due to their high working efficiency and wide range of applications.