Hydraulic Filtration Systems & Hydraulic Filters | Hidroman

Hydraulic Filtration Technology and Hydraulic Filter Systems

Reliable hydraulic equipment starts with clean hydraulic fluid. Contamination from dirt, metal particles, dust, water, and other debris can contribute to component wear, reduced system performance, unplanned downtime, and increased maintenance requirements.

Hidroman provides hydraulic filtration systems, hydraulic filters, filter elements, offline filtration units, and mobile hydraulic filtration equipment for industrial machinery, mobile equipment, manufacturing facilities, mining operations, steel plants, energy systems, and other demanding applications.

Our hydraulic filtration solutions are designed to help control fluid contamination and maintain the cleanliness required for reliable hydraulic system operation.

Why Is Hydraulic Filtration Important?

Hydraulic oil does more than transfer power. It also lubricates components, transfers heat, and helps protect internal surfaces.

When contaminants enter hydraulic fluid, they can circulate through pumps, valves, cylinders, motors, and other components. Fine particles can be particularly problematic in systems using precision hydraulic components.

A properly designed hydraulic filtration system can help:

Control particulate contamination in hydraulic oil
Protect hydraulic pumps and valves
Reduce the circulation of damaging particles
Support longer component service life
Maintain hydraulic fluid cleanliness
Improve preventive maintenance practices
Reduce contamination-related maintenance issues
Support reliable hydraulic system performance

For critical hydraulic equipment, filtration should be considered an integral part of the overall hydraulic maintenance strategy.

Types of Hydraulic Filters

Hydraulic systems require different types of filtration depending on system design, operating pressure, flow rate, oil viscosity, component sensitivity, and contamination requirements.

Suction Filters

Hydraulic suction filters are installed on the pump suction side or inside the hydraulic reservoir.

Their primary purpose is to help protect the hydraulic pump from larger contaminants before the fluid reaches the pump.

When selecting a suction filter, important considerations include:

Hydraulic pump flow rate
Hydraulic oil viscosity
Filter pressure drop
Required filtration level
Suction line conditions
Reservoir configuration

The filter must be selected carefully because excessive restriction on the pump suction side can negatively affect hydraulic pump operation.

Hydraulic Return Line Filters

Return line filters are installed in the hydraulic return circuit before fluid flows back into the reservoir.

They help capture contaminants generated inside the hydraulic system before those particles return to the tank and circulate again.

Return filters are commonly selected according to:

System flow rate
Operating temperature
Hydraulic oil viscosity
Required filtration rating
Dirt-holding capacity
Filter element compatibility

Hydraulic Pressure Filters

Pressure filters are installed in hydraulic pressure lines and are used to protect sensitive downstream components from contamination.

They can be particularly important in systems using:

Servo valves
Proportional valves
Precision control valves
Hydraulic pumps
Hydraulic motors
Sensitive hydraulic components

For demanding hydraulic applications, filter housing pressure rating and element performance should be selected according to the actual operating conditions of the system.

Offline Hydraulic Filtration Systems

Offline hydraulic filtration, also commonly referred to as kidney loop filtration, is a method of continuously filtering hydraulic oil independently from the main hydraulic circuit.

In a typical offline filtration system, hydraulic oil is drawn from the reservoir, passed through one or more filter stages, and returned to the tank after filtration.

This approach can be particularly useful for hydraulic systems with large oil reservoirs or applications where maintaining fluid cleanliness is critical.

Advantages of offline hydraulic filtration may include:

Continuous oil filtration
Independent operation from the main hydraulic circuit
High-efficiency contamination control
Reduced particle circulation
Improved hydraulic oil cleanliness
Flexible maintenance operation
Compatibility with stationary or mobile filtration equipment

Offline filtration can be used as part of a preventive maintenance program to help maintain hydraulic fluid cleanliness over time.

Mobile Hydraulic Filtration Systems

Mobile hydraulic filtration units provide a flexible solution for filtering hydraulic oil at different machines and locations.

A mobile hydraulic oil filtration system can be used during preventive maintenance, oil transfer, reservoir cleaning, equipment servicing, and contamination control operations.

Hidroman offers mobile filtration and flushing equipment designed for demanding industrial applications.

Mobile filtration equipment can be particularly useful for:

Mining equipment
Construction machinery
Agricultural machinery
Steel production facilities
Industrial hydraulic systems
Heavy-duty mobile equipment
Hydraulic service workshops
Maintenance departments

Instead of moving large machines to a filtration station, mobile equipment allows the filtration process to be brought directly to the hydraulic system.

Hydraulic Filter Elements

The performance of a hydraulic filtration system depends not only on the filter housing but also on the hydraulic filter element installed inside it.

Selecting the correct filter element requires more than simply choosing a micron rating.

Important filter element specifications may include:

Filtration rating
Beta ratio
Nominal or absolute filtration rating
Maximum flow rate
Operating pressure
Hydraulic oil viscosity
Operating temperature
Dirt-holding capacity
Filter media type
Fluid compatibility

An incorrectly selected filter element can create excessive pressure drop or provide insufficient contamination control.

For this reason, hydraulic filter selection should be based on the complete operating conditions of the hydraulic system.

Hydraulic Filter Micron Ratings

Hydraulic filters are available with different filtration ratings, including 3, 5, 10, 25, and 50 micron configurations.

However, a lower micron rating is not automatically the correct choice for every hydraulic application.

The appropriate filtration level should be determined according to:

Hydraulic component requirements
System pressure
Flow rate
Oil viscosity
Hydraulic oil cleanliness requirements
Component sensitivity
Manufacturer recommendations
Existing contamination levels

Precision hydraulic systems may require significantly finer filtration than conventional hydraulic equipment.

The goal is to achieve the required fluid cleanliness without creating unnecessary pressure drop or restricting system flow.

Hydraulic Oil Filtration

Hydraulic oil can become contaminated during manufacturing, transportation, storage, equipment assembly, maintenance, and normal machine operation.

For this reason, new hydraulic oil should not automatically be assumed to be clean enough for direct use in a sensitive hydraulic system.

Using a dedicated hydraulic oil filtration system during oil transfer can help control contamination before the fluid enters the hydraulic reservoir.

For critical applications, hydraulic oil filtration can be combined with:

Oil analysis
Particle counting
Fluid cleanliness monitoring
Filter element inspection
Preventive maintenance
Reservoir cleaning
Hydraulic system flushing

This provides a more comprehensive approach to hydraulic fluid contamination control.

Hydraulic Filtration vs. Hydraulic Flushing

Hydraulic filtration and hydraulic flushing are related but different processes.

Hydraulic filtration focuses primarily on removing contaminants from hydraulic fluid using filtration media.

Hydraulic flushing is a more intensive cleaning process designed to remove contaminants from hydraulic piping, hoses, reservoirs, manifolds, and other parts of a hydraulic circuit.

Flushing may be particularly important after:

New hydraulic system installation
Hydraulic pipe installation
Hose replacement
Component replacement
Major system repair
Hydraulic cylinder replacement
System modification

For new or rebuilt hydraulic systems, an appropriate flushing procedure followed by effective filtration can help achieve the required fluid cleanliness before commissioning.

Hydraulic Filtration Equipment

Hidroman provides a range of hydraulic filtration and contamination-control solutions, including:

Hydraulic suction filters
Hydraulic return filters
Hydraulic pressure filters
Offline filtration systems
Kidney loop filtration systems
Mobile hydraulic filtration units
Hydraulic filter elements
Hydraulic oil filtration equipment
Filtration and flushing machines
Oil contamination control equipment
Hydraulic fluid maintenance solutions

Depending on the application, filtration equipment can be configured for different flow rates, filtration levels, oil viscosities, and operating conditions.

How to Choose a Hydraulic Filter

Selecting the correct hydraulic filter requires a complete understanding of the hydraulic system.

The following parameters should be evaluated before selecting a filter:

1. Flow Rate

The filter should be capable of handling the system's required flow rate without creating excessive pressure drop.

2. Operating Pressure

The filter housing and element must be compatible with the maximum operating pressure and pressure fluctuations of the hydraulic circuit.

3. Oil Viscosity

Hydraulic oil viscosity directly affects pressure drop and filtration performance. Filter selection should consider the actual operating temperature and oil viscosity range.

4. Filtration Rating

The required micron rating should be selected according to the cleanliness requirements of the hydraulic components.

5. Dirt-Holding Capacity

A filter element with appropriate dirt-holding capacity can help extend service intervals and maintain stable filtration performance.

6. Operating Temperature

Filter materials, seals, and filter media must be compatible with the expected operating temperature.

7. Installation Requirements

Filter size, port configuration, flow direction, mounting arrangement, and available installation space should all be considered.

8. Hydraulic Fluid Compatibility

The filter media, seals, and housing materials must be suitable for the hydraulic fluid being used.

Hydraulic Filtration for Industrial Applications

Hydraulic systems used in mining, steel production, energy, manufacturing, construction, agriculture, and heavy equipment can operate under demanding conditions.

High loads, high pressures, temperature variations, dust, vibration, and continuous operation can increase the importance of contamination control.

For these applications, hydraulic filtration should be considered as part of a complete hydraulic maintenance strategy rather than as an isolated component.

Hidroman provides hydraulic filtration, hydraulic oil filtration, offline filtration, mobile filtration, hydraulic filter elements, and flushing solutions for industrial and mobile hydraulic applications.

Hydraulic Filtration Solutions from Hidroman

Hidroman combines hydraulic engineering experience with filtration and fluid maintenance solutions for demanding industrial applications.

From standard hydraulic filters and filter elements to mobile filtration machines and custom filtration systems, solutions can be selected according to the actual operating conditions of the hydraulic equipment.

Our engineering approach considers key parameters such as flow rate, operating pressure, oil viscosity, filtration level, contamination level, and application requirements.

Clean hydraulic fluid is an essential part of reliable hydraulic system performance.

Contact Hidroman to discuss your hydraulic filtration requirements and determine the appropriate hydraulic filter, offline filtration system, mobile filtration unit, or hydraulic oil filtration solution for your application.

All hydraulic components required for your machine are offered to you from a single address. With 20 years of experience in hydraulic system engineering, strong collaborations with the world's distinguished brands and following new technologies in the sector, we offer you perfect and competitive solutions.

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We manufacture in many areas under the roof of Hidroman. We manage each product group and production groups separately to increase our service quality. For more information: www.hidroman.com.tr

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www.seidehydraulics.com

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As Heben Makina, we produce mobile construction equipment with hydraulic systems.

As Hydraulic Market, we offer hydraulic equipment and services to our customers via the internet with our online sales platform in Türkiye. For more information: www.hidrolikmarket.com.tr

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As Pneumatic Market, we offer our customers pneumatic equipment and services over the internet with our online sales platform in Türkiye. For more information: www.pnomatikmarket.com

As Ata Hydraulic Cylinder, we manufacture hydraulic cylinders and perform hydraulic cylinder revisions.

As Hydraulic Service, we are not only there for you in case of Hydraulic System Failures and Sudden Stops, but also ensure that your hydraulic system machines operate with more efficiency with our predictive maintenance work. For more information: www.hidrolikservis.com.tr

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Hidroman Makes a Difference with Its Customer-Focused After-Sales Service Approach!

Hidroman, which has a 20-year history in the Hydraulic System sector, offers an after-sales service approach focused on increasing customer satisfaction with maintenance contracts that aim to reduce the operating costs of its customers and increase efficiency.

Hidroman, the innovative brand of the Hydraulic Equipment sector, continues to make a difference with its after-sales services positioned in accordance with the needs of its customers as well as the services it offers before and after sales. Hidroman, which aims to provide uninterrupted and safe services to its customers with its operations throughout Turkey and Europe, defines a perfect customer experience as product reliability and after-sales service reliability.

Hidroman, which has made being with its customers throughout the life of the product in order to create brand loyalty a part of its corporate culture, organizes the services it offers within the scope of After-Sales Services under four main headings as supervision and assembly, commissioning, maintenance-repair and original spare parts supply. Supervision service; It covers consultancy and training services on issues such as efficient hydraulic equipment selection, rules to be considered for correct product installation and connection of the pump with other installation equipment. After the installation of the device, the commissioning service is also carried out by Hidroman’s expert technical staff.

In hydraulic equipment technologies used in many different areas, malfunctions may occur over time due to operating conditions. During the 10-year life of a piece of equipment, the initial investment cost and repair expenses constitute 10-15% of its total cost, while the remaining expenses are due to energy consumption. Hidroman examines all processes from the selection of the hydraulic system to all the equipment on which the hydraulic system will operate, and offers “efficient system solutions that aim to minimize energy consumption”.

In addition, with preventive and protective maintenance agreements, it aims to reduce the risk of failure of the device, extend its life and ensure that the device operates with high efficiency and low energy consumption.

Thanks to the advantages offered by Hidroman with preventive and protective maintenance services, the budget allocated by its customers for maintenance pays for itself in a short time.

In businesses where uninterrupted service is important, Hidroman intervenes in malfunctions in a short time and minimizes damages caused by labor losses. Offering its customers a 10-year original spare part guarantee in the hydraulic systems it sells, Hidroman delivers tested original spare parts from stock in case of malfunction, shortens malfunction periods and eliminates disruptions that may occur during this period.

Hidroman After-Sales Services department stated that they offer annual maintenance services in accordance with the needs of the business. It states that their aim with maintenance services is to increase hydraulic system efficiency, ensure continuous operation of the hydraulic system and to detect, monitor and prevent possible malfunctions in operating equipment and devices by using technological measurement, control, analysis and monitoring devices.

We aim to standardize the service provided by our authorized services by inspecting them at certain intervals. In addition, we follow the calibration processes of our technical equipment in line with quality certificates. We attach importance to communication channels to be established in order to increase customer satisfaction both in sales and service. We are at the service of our customers 24/7 with our competent services that can answer the questions of our customers who buy our products by trusting our brand. In order to measure the customer satisfaction rate, we organize surveys for our customers at certain intervals through our call center. As a result of the feedback we receive, we take action quickly to meet the expectations of our customers. The nature of the products and services in the market is changing rapidly with the effect of the digital transformation we are experiencing due to technological developments. For this reason, we see the development in our products and services as a constantly living process and we continue our improvement and development works without stopping.