Understanding Hydraulic Oils: A Comprehensive Guide


Bardahl Hydraulic Oils: Multifaceted Performance for Your Machinery

Bardahl hydraulic oils represent a complete range of mineral oils not just designed for hydraulic systems but also suitable for oil baths and circulation lubrication. Versatile and secure for various applications, understanding the nuances of hydraulic oils before purchase is crucial.

Selecting the Right Hydraulic Oil

Discover essential insights into oil viscosity, associated risks, and strategies to enhance the longevity of your hydraulic oil in this informative piece.

Bardahl's Polar Attraction Formula

Our hydraulic oils incorporate Bardahl's exclusive polar-organic high-pressure compounds, ensuring an adhesive oil film resistant to high pressures and temperatures. The exceptional anti-wear properties assure prolonged life for your components, making these oils ideal for gearboxes with hydraulic drive and combined lubrication.

Viscosity and Performance

The viscosity of hydraulic oil is generally kept as low as possible to reduce friction loss. However, using thinner oils can lead to internal leakage losses, which significantly reduce efficiency. Therefore, it's crucial that hydraulic oil maintains minimal viscosity deviations during temperature changes, with viscosity index (V.I.) improved additives ensuring optimal performance.

Temperature and Oxidation Control

High pressures in hydrostatic systems can cause significant temperature rises. Hydraulic oil must prevent rapid oxidation or even coking (cavitation) due to elevated temperatures and present oxygen. Additives like pour point depressants keep the oil fluid at low temperatures, with higher viscosity oils having less of a pour point.

Corrosion Protection with Bardahl

Bardahl's components offer optimal rust protection, maintaining the lubricating power even after extended downtime. It's vital that any water present is quickly separated by the oil, as a strong water separation capability is indispensable for all hydraulic oils.

Maintaining Your Hydraulic Systems

Proper maintenance with the right hydraulic oil is essential for optimal and reliable performance of hydraulic systems, whether it's a jack, lift, or press. The right oil choice is paramount for the durability and reliability of any hydraulic system.

Addressing Hydraulic Issues

Incorrect or aged hydraulic oil can lead to mechanical cracking, reducing the maximum efficiency of machinery like excavators. Issues with hydraulic pumps or motors are not just annoying but can be costly. Hence, timely oil changes and choosing quality hydraulic oil are economical in the long run.

Bardahl's Hydraulic Oil Additive

Bardahl Industry Hydraulic Oil Additive is specially formulated to resolve or prevent the problems mentioned. This additive allows you to extend the intervals between hydraulic oil changes.

Choosing the Right Hydraulic Oil

Hydraulic oil is available in various viscosities from Bardahl, from H10 to H68. With a range of packaging options to suit different sizes of hydraulic systems, Bardahl ensures that by selecting the correct oil viscosity, you can maximize the lifespan of your engines and pumps while minimizing losses.

Bardahl’s Specialty Oils for Diverse Applications

Advies foodgrade

We offer oils for specific applications, like food-grade hydraulic oil with NSF certification for the food industry, and environmentally safer options for sectors where oil spillage poses a risk to the ecosystem.

Order Your Hydraulic Oil with Ease

Purchase high-quality Bardahl hydraulic oils directly online, available in all viscosities and packaging sizes. Curious about our hydraulic oil additive to prolong your oil change intervals?

hydraulisch olie kopen

Personalized Advice and Support

The right advice on which mineral oil to choose and when to change it is crucial. Our field service is happy to provide personal advice on-site. Inquire for the correct oil advice tailored to your needs.


Learn More


Can't find what you're looking for? Through support@bardahl.nl we handle your question quickly and professionally. You can also contact us directly by telephone on 0031 (0) 78-651 23 22.
Or fill in our contactform