Hydraulic Pumps

Hydraulic pumps are the core components of hydraulic systems, converting mechanical energy into hydraulic flow that powers machines, attachments and working equipment. At HPM Hydraulic, we supply a wide range of hydraulic pumps for construction machinery, industrial equipment and mobile hydraulic systems, including pumps for excavators, loaders, cranes, agricultural machines and other heavy-duty applications.

Our Hydraulic Pumps category includes solutions for different operating principles, pressure ranges and machine configurations. Customers can choose from hydraulic piston pumps, hydraulic gear pumps, hydraulic vane pumps and hydraulic gerotor pumps.

Types of Hydraulic Pumps Available

Our range includes:

• Hydraulic piston pumps – designed for high-pressure and high-performance hydraulic systems where efficiency, durability and precise control are essential.
• Hydraulic gear pumps – compact and reliable pumps widely used in construction, agricultural and industrial machinery.
• Hydraulic vane pumps – suitable for systems requiring smooth operation, stable flow and low noise levels.
• Hydraulic gerotor pumps – efficient solutions for selected low- and medium-pressure hydraulic applications.

The correct pump type depends on the hydraulic system design, required pressure, displacement, rotational speed, flow rate and machine application.

Hydraulic Pumps for Excavators and Heavy Equipment

HPM Hydraulic specializes in hydraulic components for heavy machinery. Our range includes hydraulic pumps for excavators, loaders, cranes, construction equipment and industrial machines.

Hydraulic pumps supply oil to components such as hydraulic cylinders, travel motors, swing motors, control valves and auxiliary hydraulic circuits. A properly selected pump helps maintain the required flow, operating pressure and machine performance.

When replacing a hydraulic pump, it is important to verify the complete technical specification rather than selecting a unit based only on its external appearance.

How to Select the Correct Hydraulic Pump

To identify the correct hydraulic pump, check the information available on the original pump and the machine.

The most useful data includes:

• machine manufacturer and model,
• pump manufacturer,
• OEM or reference number,
• pump model or type designation,
• displacement,
• maximum operating pressure,
• direction of rotation,
• shaft type and dimensions,
• mounting flange,
• inlet and outlet port configuration.

The OEM number or pump reference number is often the fastest and most reliable way to identify a compatible replacement.

If the pump identification plate is missing or unreadable, photographs of the existing pump, shaft, mounting flange and hydraulic connections can help with identification.

Replacement Hydraulic Pumps and OEM References

Our catalogue contains hydraulic pumps identified by manufacturer references, OEM numbers and technical designations. This makes it easier to search for a replacement pump for a specific machine or hydraulic system.

When searching for a pump, use the part number, OEM reference, machine model or pump designation. Exact reference numbers can significantly reduce the risk of selecting an incorrect hydraulic component.

Symptoms of a Worn Hydraulic Pump

Loss of hydraulic performance does not always mean that the pump must be replaced. However, common symptoms of hydraulic pump wear may include:

• slow hydraulic functions,
• reduced lifting force,
• loss of pressure after the oil reaches operating temperature,
• excessive pump noise,
• unstable hydraulic operation,
• overheating of hydraulic oil,
• reduced system efficiency.

Before replacing the pump, the hydraulic system should also be checked for contaminated oil, clogged filters, suction-side leaks, faulty relief valves and internal leakage in other components.

Why Proper Hydraulic Pump Selection Matters

A hydraulic pump must match the requirements of the hydraulic system. Incorrect displacement, rotation direction, shaft configuration or pressure capability can result in poor performance or damage to other hydraulic components.

Correct pump selection helps ensure:

• proper hydraulic flow,
• stable system operation,
• efficient machine performance,
• reduced risk of overheating,
• longer service life of hydraulic components,
• reduced machine downtime.

Hydraulic Pump Spare Parts and Related Components

In addition to complete hydraulic pumps, HPM Hydraulic also supplies spare parts for hydraulic pumps and other hydraulic components. Depending on the application, customers may also require seals, valves, hydraulic motors, hoses or other components during repair or overhaul.

If you are unsure which hydraulic pump fits your machine, contact HPM Hydraulic with the machine model, pump reference number and available technical data. This information can help identify the correct hydraulic solution for your application.