Importance Of Oil Filtration In Hydraulic System

Categories: Hydraulic

Hydraulic systems have been around for over two centuries now. Modern-day hydraulic systems are far more advanced equipped with components such as the pump, reservoir which also has the hydraulic oil filter, actuators, and valves. These systems are so prevalent these days that you even find one in the steering wheel of your car. 

Hydraulic systems are mechanical; hence they are also vulnerable to usual wear and tear. Issues such as ineffective fluid filtration or contamination are among the worst things that could happen to a hydraulic system. This makes it imperative to ensure effective oil filtration of these systems to function optimally.    

What Exactly Is Hydraulic Filtration?

The hydraulic filters are designed to protect the system against potential damage that can be caused due to contamination of oil or other hydraulic fluids caused by the particles present in the fluid in use. 

Approximately one million particles larger than the size of 1 micron can enter the hydraulic system in just a minute. This is awful news for the system as these particles can cause some severe damage to the hydraulic components due to hydraulic oil’s vulnerability to contamination. This makes it crucial to maintain effective filtration of the system as this will further enhance the life of the hydraulic system.   

An effective hydraulic filtration system is designed to rid the system of different metal particles found in hydraulic system oil. These particles include copper and iron that act as a catalyst to hasten the degradation of the hydraulic system. The filtration will remove these particles, which further helps in enhancing the longevity of the system.

Types Of Filters In Hydraulic Systems

It is not very challenging to find a variety of filters used in modern day hydraulic systems. However, finding the one that suits the project’s requirements and the system can be a bit tricky. Therefore, check out these popular types of filters in hydraulic system.  

  • Return Line Filters: These filters are very prevalent in open-loop applications. The primary job of return line filters is to filter the fluid before they flow back to the hydraulic system’s reservoir.
  • Pressure Line Filters: Also known as the standard hydraulic pressure filters, pressure line filters are equipped with a bypass check valve used to protect the hydraulic system and its components from general wear and tear.     
  • Strainers And Suction Filters: One can find these filters in the reservoir responsible for acting as the ultimate barrier to ensure protection against different contaminant particles before the fluid can enter the pump.
  • Reservoir Breather Filters: These filters are also located in the reservoir, where they remove any contaminant particle entering the system through the air while moving towards the tank.

Why Do You Need Oil Filtration In Hydraulic Systems? 

Hydraulic filters are essential in ensuring the optimal functioning capacity of any hydraulic system. Therefore, let’s check out some of those reasons that make oil filtration so important for your hydraulic system.

  • Elimination Of Foreign Particles: As mentioned earlier, foreign particles such as copper and iron in the hydraulic fluid can cause extensive damage to the system over time. Fortunately, one can safeguard their machines from the contamination caused by such by simply leveraging a practical approach to oil filtration of the system.
  • Better Productivity And Efficiency: Contamination by particles can hamper the productivity and efficiency of the machine. This makes appropriate oil filtration more important for every hydraulic system out there.
  • Lower Maintenance Cost: A hydraulic system without a robust oil filtration mechanism in place will be more likely to break down. This consequently increases the cost of maintenance which can be averted with robust oil filtration.
  • Enhanced Life Of The Hydraulic System: Effective oil filtration can contribute a great deal towards enhancing the overall life of the hydraulic system. This means insignificant expenses in oil filtration can bring significant investment returns.

Bottom Line

Leveraging effective oil filtration for hydraulic systems has always been beneficial for the project in many ways. This significance has incited many people to enquire about the hydraulic oil filter machine price in India for excellent reasons.


Can I use an oil filter in place of a hydraulic filter?

This depends on various factors such as the pressure, flow rate, pore size, and surface area. As long as everything meets the expected requirements, one can use whichever filter they prefer. 

How often should you change hydraulic oil filters?

Generally, the filter can hold dirt until it is 80% full, after which the filter is no longer of use. Therefore, it is better to keep track of the extent to which the system has been operated in a given period.

How to change the hydraulic oil filter on the log splitter?

This is a simple process where all you need to do is place a tank, disconnect the suction from the reservoir tank, and allow the oil to drain. Once drained adequately, place the suction back on and fill the reservoir with new oil.

What is the difference between a hydraulic filter and an oil filter?

The primary difference between these filters is the amount of pressure they can withstand and their filtering capacity.

Where do you put the oil filter in a hydraulic system?

The location of the oil filter can vary based on the reservoir’s capacity, pump flow rate, pressure, and more. However, in most cases, these filters are submerged within the reservoir.