Hydraulic systems are important for many machines. The use of hydraulics can actually be traced back to the 1st century, according to Tech Target. Hydraulic fluid is essential to the operation of hydraulic systems, and there are different types of hydraulic fluid to choose from. You need a basic understanding of the three main types in order to choose hydraulic fluid wisely. Let's learn a little about the three most commonly used types of hydraulic fluid below.

1. Petroleum Based

Petroleum-based or mineral-based fluids are made from crude oil. The performance of petroleum-based oil is based on a few different factors. First, the quality of the original oil matters. Second, the refining process that was used to create the product is key. Lastly, performance is based on any additives that are used. You should pay close attention to these details to ensure you're getting the best product for your needs.

Petroleum-based hydraulic fluid is the least expensive type; it also comes in a wide variety of options for different needs. This type of fluid often has a dye added to ease leak detection.

2. Water Based

Another option is water-based hydraulic fluid. It's a good choice when used in applications in which there's a high probability of fire. However, you should be aware that these don't provide the same protection as petroleum or synthetic-based fluids.

Water-based hydraulic fluid comes in oil-in-water emulsions, water-in-oil emulsions, and water-glycol blends. A professional can help you determine which type is best suited for your machinery.

3. Synthetic

A third option is synthetic hydraulic fluids. This type is made from chemically produced base fluids. Synthetic fluid provides oxidation stability, fire resistance, and biodegradability. Of the three types described in this article, synthetic will offer you the best performance. They're also a great choice for applications involving high pressure or extreme temperatures.

These are the three main types of hydraulic fluid to choose from. If you'd like to learn more about hydraulics and fluid options, turn to our team at Crown Hydraulics. We offer decades of experience in the heavy equipment and aggregate production industries and are eager to assist you in ensuring your machinery operates smoothly. Contact our dependable, full-service hydraulic shop today to get started with our services.