Hydraulic Fluid Supply: Common Types and Their Applications

December 6, 2024

Learn about hydraulic fluid supply from Broda Hose, their most common types, and their applications across industries in Australia.

Hydraulic fluid helps carry out smooth operation of machinery and equipment across various industries, from construction to manufacturing. Choosing the right hydraulic fluid for your application ensures efficient performance, reduces wear and tear on components, and extends the lifespan of your system.

A Quick Look at Hydraulic Fluids

Hydraulic fluids are specialised liquids used in hydraulic systems to transmit power and perform critical functions like lubrication, heat transfer, and sealing. These systems rely on the fluid’s ability to generate force and movement when pressurised, allowing for the efficient operation of equipment like excavators, lifts, and industrial machinery.

Hydraulic fluids are formulated to handle the high pressures and temperatures involved in these processes while also protecting the system’s components from wear and corrosion.

Major Types of Hydraulic Fluids

Different types of hydraulic fluids are used depending on the application, environment, and performance requirements. Here are the most common types.

•  Mineral Oil-Based Hydraulic Fluids: Mineral oil-based fluids are the most commonly used hydraulic fluids. Derived from refined petroleum, they offer good lubrication properties, oxidation resistance, and stability. Additives such as anti-wear agents, rust inhibitors, and foam suppressants are often included to enhance performance. These fluids are widely used in industrial and mobile hydraulic systems.

•  Synthetic Hydraulic Fluids: Synthetic hydraulic fluids are designed to offer superior performance under extreme conditions, such as high or low temperatures. These fluids provide excellent stability, longer service life, and enhanced lubrication properties. They are typically used in aerospace, automotive, and other demanding applications where mineral oils may not suffice.

•  Water-Based Hydraulic Fluids: Water-based fluids are a safer option for environments where fire resistance is crucial.

•  Biodegradable Hydraulic Fluids: Biodegradable or environmentally friendly hydraulic fluids are designed to minimise environmental impact, often used in sensitive areas like marine, forestry, and agriculture. These fluids degrade quickly in case of a leak or spill and are preferred in applications where environmental regulations are strict.

•  Fire-Resistant Hydraulic Fluids: Fire-resistant fluids are used in applications where the fire risk is high. There are different types of fire-resistant fluids. Phosphate ester fluids, for instance, offer excellent fire resistance and are used in aviation, power generation, and high-heat industries. Water-containing fluids, alternatively, help reduce flammability, making these suitable for use in mining and steel production.

•  High-Temperature Hydraulic Fluids: In applications where hydraulic systems are subjected to extreme heat, high-temperature hydraulic fluids are necessary. These fluids are formulated to resist thermal breakdown, oxidation, and degradation at elevated temperatures, ensuring longer life and maintaining efficiency in hot environments.

Get Your Hydraulic Fluid Supply

Choosing the right hydraulic fluid starts with understanding your system’s operating conditions, including temperature, pressure, and load. For systems exposed to extreme temperatures, opt for fluids with a high viscosity index that performs well in varying conditions. If fire hazards are a concern, such as in steel mills or aviation, a fire-resistant fluid is essential. In environmentally sensitive areas, biodegradable fluids help minimise environmental impact in case of leaks or spills.

Get your hydraulic fluid supply now at Broda Hose to ensure your hydraulic systems will perform optimally. Our hydraulic fluids are formulated with quality ingredients so they can optimise the performance and energy efficiency of your systems.

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