Filter Test Systems

The success of a system depends on the capabilities of all its components. In hydraulic systems, parts' capabilities are critically important. These systems transmit and control power through the fluid under pressure in a closed circuit. Filters remove insoluble contaminants, ensuring fluid cleanliness. As hydraulic pressure levels have increased from 70 bars to 140 bars and up to 280-350 bars, additional sealing measures have become necessary. This has led to improvements in filters with enhanced sealing performance. Preventing oil contamination is crucial; the solution lies in cleaning the oil with appropriate filters. Rota Filter Test Systems have been specifically developed to test hydraulic system oil filters' performance.

Qualified Solutions for Every Filter

Rota Filter Test Systems evaluate the performance of filters used in oil, fuel, and hydraulic fluids. The system serves various fields, including automotive, heavy industry, aircraft, and marine filters. It determines filtering ability according to specific requirements for oil, hydraulic, and fuel filters of all sizes, providing accurate reporting.

From R&D to Quality

Filter manufacturers need test systems to assess filters during product development. Consequently, all values listed in a new filter's catalog are tested. Although only some produced filters can be tested, the filter's characteristics must be verified during R&D studies. Standards in this field require a series of stringent test conditions. Robust tests must support filter compliance with specific standards and verified reports. Filter Test Systems enable quality and R&D departments in enterprises to select products with the Audit Test method, checking whether filters meet the same standards. Companies regularly purchase large quantities of filters from manufacturers and also use these systems in their incoming quality departments to ensure filters meet the expected requirements.


One Solution for All Tests

The Rota Filter Test System, developed to verify filters' compliance with standards, covers a wide range of tests:

Supported standards

ISO 2942-2004 Test:

Specifies a bubble point test method applicable to filter elements used in hydraulic fluid power systems. It can be used to verify the fabrication integrity of a filter element (checking for the absence of bubbles) or to identify the first bubble point to allow localization of the filter element's largest pore.

ISO 14085-3 Test:

Since the filtration efficiency of a filter element can vary over its service life as it becomes clogged, this test method refers to its continuous measurement using online particle counters with continuous injection of contaminants and recirculation of particles not retained by the filter element.

ISO 3968-2001 Test:

This international standard defines a procedure for evaluating differential pressure versus flow characteristics of hydraulic filters. It includes a method for measuring the differential pressure within the respective parts of a filter assembly, namely the body, the filter element, and the body and other parts produced at different flow rates and viscosities.

ISO 14085-4 Test:

The slump/burst pressure test is performed in conjunction with an efficiency test performed according to the procedure defined in ISO 14085-3 by continuing the injection of contaminants until the specified filter element differential pressure is reached.

SAE J1985 Test:

This standard is designed for fuel filters of all sizes. The low level of contamination, the downstream cleaning filter and the duration of the test allow the filter's particulate holding ability to be measured in a single pass as there will be no appreciable loading or setback.

ISO 3724-2007 Test:

It describes a method for determining the resistance of a hydraulic filter element to flow fatigue after it has been loaded with particulate pollutant and subjected to a smoothly varying flow rate and predetermined differential pressure.

Overview of Specifications

• High repeatability • Precise pressure adjustment • Manual and fully automatic control options • Efficient operation with variable speed motors • Variable flow: 1-200 L/min • Variable Pressure: 10-250 bar