Hydraulic Oil
Hydraulic MotorsThe hydraulic motor will convert the hydraulic pressure in to a rotary mechanical motion. The hydraulic motors are ..... One term that can be used to characterize hydraulic lubricants is variety. Hydraulic oils are sold by virtually every oil company and encompass a wide range of viscosities and performance characteristics. There is also a broad range of hydraulic oil quality in the marketplace. Some hydraulic oils are actually sold wholesale at less than per gallon, while certain specialty fluids can command prices of or more.
Hydraulic oils are used in a wide range of applications and in demanding environments such as under the sea and in outer space. They are used in virtually every industrial and agricultural field from manufacturing and farming to mining. All of these lubricants require different performance characteristics.
The most commonly used hydraulic oils are anti-wear and rust and oxidation inhibited oils. There are also biodegradable hydraulic oils that are used in more sensitive areas, as well as fire resistance hydraulic oils that are used where there is a fire safety issue.
High performance hydraulic oils are usually PAO-based synthetic oils such as the AW Series and RC Series or the Mobil SHC 500 Series oils. These oils are characterized by a wide operating temperature range, and in the case of the AMSOIL products, very high wear resistance as is evidenced by low four-ball wear test results. These oils are designed to last several times longer and operate in much higher temperatures than conventional mineral hydraulic oils.
Biodegradable hydraulic oils are made using a vegetable base such as rapeseed or synthetic esters. Rapeseed type oils such as Texaco's Biostar have a much shorter useful life when compared to synthetic biodegradable such as AMSOIL TBI, which may last up to 10 times longer.
On the lower end of the hydraulic oil spectrum are mineral oils made with paraffin base oils. These oils are not designed for long life and usually have a minimal additive package. These are typically used in systems that have a lot of leaks and can often be found in mining and agricultural applications. Other mineral hydraulic oils use naphthenic base stocks and have an improved additive system for slightly longer life and better protection.
Synthetic hydraulic oil should be considered as a replacement for mineral-based hydraulic oil due to its higher operating temperature capabilities, reduced wear and increased lubricant life.
Knowing enough about Hydraulic Oil to make solid, informed choices cuts down on the fear factor. If you apply what you've just learned about Hydraulic Oil, you should have nothing to worry about.
Hydraulic Filters"Hydraulic filters" are utilized for managing emulsions, petroleum based lubricant, lubrication oils .....
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