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A Guide to Hydraulic Power Supplies header image

A Guide to Hydraulic Power Supplies


Understanding the nuances of hydraulic power supplies is crucial for professionals operating in industries such as industrial manufacturing, marine, aerospace, and motorsport. This comprehensive guide to hydraulic power supplies aims to navigate through the essential aspects, ensuring you make an informed decision for your hydraulic needs.

What is a Hydraulic Power Supply?

At its core, a hydraulic power supply, also known as a hydraulic power unit (HPU), is the driving force behind any hydraulic system. It consists of several components including a motor, reservoir, hydraulic pump, and the necessary valves and controls to manage fluid flow within the system. The primary function is to convert mechanical energy into hydraulic energy, creating the flow needed to power hydraulic machinery.

Key Components and Their Functions

Understanding each component is vital:

  • The Motor: Typically electric or combustion-powered, the motor provides the energy needed to run the pump.

  • The Reservoir: It holds the hydraulic fluid and helps in de-aerating and cooling the fluid.

  • The Hydraulic Pump: This is the heart of the unit, pumping hydraulic fluid from the reservoir into the system under pressure.

  • Valves and Controls: These components manage the direction, pressure, and flow of the hydraulic fluid.

A view of multiple components recently used in a hydraulic power pack assembly by Zeus Hydratech.

Above: A selection of components recently used in a hydraulic power supply (Hydraulic Power Unit) assembly recently completed by Zeus Hydratech.

Types of Hydraulic Power Units

Hydraulic power units come in various shapes and sizes, from compact versions for small machinery to large-scale units for industrial applications. Each type is tailored to certain specifications and requirements, such as:

Choosing the Right Hydraulic Power Supply

When selecting a hydraulic power supply, consider the following factors:

  • Performance Requirements: Determine the pressure, flow, and speed needed for your application.

  • Size and Space: Assess the space available to accommodate the HPU without compromising maintenance accessibility.

  • Environmental Conditions: Ensure the unit is suitable for the operational environment, taking temperature and atmospheric conditions into account.

  • Energy Efficiency: Look for units that offer energy-saving features to reduce operational costs and environmental impact.

Customisation and Adaptation

At Zeus Hydratech Limited, we recognise that off-the-shelf options may not address all your specific needs. Our expertise enables us to custom-design and manufacture hydraulic power supplies that fit precisely with your specifications, maximising efficiency and reliability.

Customisation being carried out on one of Zeus Hydraetch's hydraulic power packs.

Maintenance and Reliability

Regular maintenance is key to guaranteeing the longevity and reliability of any hydraulic power supply. Scheduling periodic checks and following proper servicing protocols are essential practices to prevent downtime and extend the life of your equipment. A reputable supplier will offer support and maintenance services post-installation to ensure optimal performance.


Investing in the right hydraulic power supply can profoundly impact the productivity and efficiency of your operations. With this guide to hydraulic power supplies, you are now equipped with foundational knowledge to make informed decisions. Whether you’re upgrading an existing system or implementing a brand-new setup, Zeus Hydratech Limited is your partner for quality, affordability, and tailored hydraulic solutions. Contact us to discuss your hydraulic power supply requirements and discover how we can enhance your operations.

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