There are several aspects to consider when choosing a Hydraulic Pump. First, look at the system pressure requirements. For low-pressure systems (generally below 2.5MPa), gear pumps can be selected. They have a simple structure and low price, and are commonly used in lubrication systems of small machine tools. Medium-pressure systems (6.3-16MPa) are suitable for vane pumps, which have stable output flow and low noise, and are commonly used in hydraulic cranes and other equipment. High-pressure systems (above 31.5MPa) use plunger pumps, which can withstand high pressure and have high efficiency, and are mostly used in engineering machinery and heavy machinery.
The second is the flow requirement. The displacement and speed of the pump are selected according to the oil delivery volume required by the system. If the flow rate changes greatly, a variable pump can be considered, such as the variable type in the plunger pump, which can adjust the output as needed. It also depends on the working environment. For example, in places with noise restrictions, vane pumps are preferred; in dusty environments, gear pumps are more resistant to dirt.
Finally, consider the economy. Gear pumps are low in cost and simple to maintain, and are suitable for scenes with limited budgets; plunger pumps have high initial costs, but high efficiency under high pressure, and are more cost-effective for long-term use. Combining these factors, you can choose a Hydraulic Pump that meets your needs.
