MP-FILTRI MR6304A03A Replacement Filter Element High Pressure Precision Hydraulic Filter Cartridge Servo System Oil Filtration Spare Parts

Core basic parameters of the product

The MR6304A03A replacement filter element is produced according to the European hydraulic filter cartridge DIN24550 standard. Each batch undergoes integrity, pressure impact resistance, and filtration efficiency sampling verification. The key technical parameters are as follows:

-Product model: MR6304A03A (domestic substitute)

-Filtering accuracy: 3 μm, β (c) ≥ 200, absolute filtering grade

-Adaptive filter: MP-FILTRI MR6304 series high-pressure pipeline filter

-Model code definition: MR=high-pressure pipeline filter element; A=Inorganic fiberglass filter material; 03=3 μ m accuracy; A=NBR nitrile rubber seal

-Applicable media: mineral anti-wear hydraulic oil, gear lubricating oil, water ethylene glycol emulsion

-Maximum collapse pressure difference: 21 bar, able to withstand instantaneous alternating pressure difference impact of high-pressure system

-Working temperature range: -25 ℃ to+105 ℃

-Suggest replacing the pressure difference: 0.22MPa. If the pressure difference reaches the set threshold, replace the filter element in a timely manner

-Oil flow direction: from outside to inside, matching the standard flow direction of MR high-pressure filter

-Structural form: Multi layer ultra-fine gradient glass fiber folding, thickened galvanized carbon steel internal and external bidirectional support skeleton

Detailed introduction of product materials

MR6304A03A belongs to a small shell high-precision high-pressure filter element, with strict requirements for filter material, skeleton, and bonding process for a precision of 3 μm. It focuses on avoiding fatal problems such as filter material breakdown, fiber detachment, skeleton flattening, and end cap delamination caused by low-priced substitute parts in the market, and preventing small fibers from entering the servo circuit and causing component damage.

-Filter material: Multi layer gradient inorganic resin cured fiberglass filter material, with the outer layer intercepting larger impurity particles and the inner layer achieving precise interception of 3 μ m. The filter material undergoes high-temperature impregnation and solidification process, and the fibers are firmly bonded to each other. Under the repeated flushing conditions of high-pressure oil flow, fiber peeling and detachment will not occur, avoiding fine fiber wear on the servo valve core. Gradient layered pollutant absorption design, where impurities accumulate layer by layer in different filter layers, improves the short board of high-precision filter cartridges that are prone to rapid clogging, effectively delays the rate of pressure difference rise, and extends the service life of the filter cartridge.

-Internal and External Support Skeleton: Thickened punched galvanized carbon steel bidirectional support skeleton, strengthened anti extrusion ability, to cope with the alternating high pressure impact caused by equipment start and stop, and prevent the filter element from being flattened and collapsed due to pressure difference; The skeleton adopts a high porosity design, which controls the initial pressure difference of the filter element while ensuring mechanical strength, without interfering with the dynamic response performance of the servo oil circuit.

-Sealing parts: NBR nitrile rubber sealing ring is standard, which is oil resistant, anti-aging, and resistant to medium swelling, ensuring that the filter element and the filter seat are fully fitted, and avoiding medium bypass short circuit. Support the upgrade of FKM fluororubber seals for special media such as high-temperature working conditions and phosphate ester fire-resistant oil.

-End caps and bonding process: Machine processed metal end caps, using high-strength two-component adhesives for hot pressing composite molding. The bonding strength between the filter material, skeleton, and end caps is tested by cyclic differential pressure impact testing, and will not peel or crack under high-pressure alternating environments; All assembly dimensions are 1:1 replica of the original factory standard, with precise disassembly and positioning inside the narrow filter housing.

Main applicable scenarios and industries

MR6304A03A is a precision filter for positioning high-pressure pipelines, installed in the servo control oil circuit downstream of the oil pump, and is not recommended for use in return or suction pipelines.

-Metallurgical industry: The servo control circuit of the rolling mill protects the servo valve in a narrow installation space, ensuring the control accuracy and production continuity of the rolling equipment.

-High end machine tool equipment: precision machining center hydraulic servo system, protecting proportional valves and servo valves, reducing the probability of valve failure.

-Experimental testing equipment: hydraulic fatigue test bench, performance test bench, high-pressure oil precision purification.

-Power industry: High voltage precision filtration for power plant speed control and oil station, suitable for domestic replacement of imported complete filtration equipment.

-Industrial complete equipment: renovation project of imported high-pressure filtration equipment for various space limited locations.

Core advantages of the product

1. 3 μm high-precision interception, guarding expensive servo components: stable β value filtering level, effectively intercepting small hard particles, reducing servo valve jamming and valve core strain, ensuring equipment control accuracy, and reducing economic losses caused by shutdown maintenance.

2. The reinforced structure of the small shell is resistant to high-pressure alternating impact: the thickened bidirectional metal skeleton is matched with high-pressure grade ultra-fine fiberglass filter material, which has undergone cyclic pressure difference impact testing to adapt to frequent start stop and pressure fluctuation conditions in industrial sites.

3. Gradient pollution absorption design to alleviate the pain point of easy blockage of high-precision filter elements: Multi layer gradient filter materials optimize impurity distribution, and the pressure difference rises smoothly, effectively extending the service life compared to ordinary single-layer high-precision filter elements.

4. Controllable low initial pressure difference, does not interfere with servo system response: optimizes the folding arrangement of filter materials and the opening rate of the skeleton, controls the flow resistance while ensuring high precision, and does not affect the dynamic response of the servo oil circuit.

Core advantages of source factory substitution

Our factory has mature mass production experience in the MP-FILTRI MR series of high-pressure filter cartridges. We have established a special factory inspection process for 3 μm high-precision small shell filter cartridges, and conduct pressure testing, sealing testing, and filtration efficiency verification for each batch of samples. We strictly control the risk of fiber detachment and prevent unqualified products from flowing to precision equipment sites. As a source manufacturer, we have cut the premium of multi-layer intermediaries for imported brands. We not only support single sample machine testing, but also undertake annual factory maintenance and large-scale bidding procurement for engineering projects; Mainstream regular models are in stock and can quickly respond to customers' urgent spare parts needs. We can customize and upgrade filter and sealing materials according to the customer's on-site media, temperature, and pressure conditions.

Frequently Asked Questions (FAQ)

Q1: How to deal with the rapid increase in pressure difference of high-precision filter cartridges?

A: High precision filter cartridges are highly sensitive to impurities, and a rapid increase in pressure difference indicates a large load of pollutants in the system; Suggest adding pre coarse filtration to the front-end, regularly sampling and testing the oil contamination level, and replacing the filter element in a timely manner when the pressure difference reaches 0.22MPa.

Q2: Can this filter be installed on the return oil pipeline for use?

A: Not recommended. This model is a servo high-pressure dedicated filter element with high procurement cost. The corresponding return oil series filter element should be selected for the return oil working condition, taking into account both the use effect and procurement cost.

Q3: What are the precautions for configuring servo filter bypass valves?

A: The collapse pressure difference of the filter element is 21 bar, and the opening pressure of the bypass valve must be lower than the collapse pressure difference of the filter element; It is not recommended for servo systems to rely on bypass valves for long-term operation. Priority should be given to configuring differential pressure transmitters, and filter cartridges should be replaced in case of differential pressure alarms.

Q4: Apart from MP‑FILTRI filter elements, what other oil filtration products do you have?

A: Our factory has a complete product line for oil filtration. In addition to MP‑FILTRI replacement filters, we also produce PALL, HYDAC, and Leemin series hydraulic filters, which are matched with mobile oil filter machine and coalescence dehydration filters to achieve integrated filtration of oil impurities and water.

Q5: What other filtering categories does the factory produce?

A: The source manufacturer covers industrial oil filtration, industrial water filtration, natural gas filtration, air filtration, and can produce imported replacement filters, domestic standard filters, and complete sets of filtration equipment. It supplies to multiple industries such as power, metallurgy, chemical, and gas.

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