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25μm Paper Hydraulic Oil Filter Element 70×140

Type
Hydraulic Oil Filter Element
OD
70 mm
Height
140 mm
End caps
Carbon steel/Plastic
Filter material
Paper
Filtration rate
25 μm
Sealing material
NBR
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Products Description
Specification
Features

Products Description

The 25μm Paper Hydraulic Oil Filter Element is a cost-effective filtration solution designed for hydraulic and lubrication systems where reliable particle removal is required at an economical price point. With compact dimensions of 70mm in outer diameter and 140mm in length, this filter element is commonly used in return lines, suction lines, or low-pressure filtration applications in a wide range of industrial machinery .

This hydraulic oil filter features high-quality resin-impregnated paper filter media specifically engineered for hydraulic oil filtration. The paper medium is pleated to maximize surface area within the compact 70×140 envelope, providing optimal dirt-holding capacity and service life for general-purpose hydraulic applications .

Specification

Type Hydraulic Oil Filter Element
OD 70 mm
Height 140 mm
Filter material Paper
Filtration rate 25 μm
Working temperature -20~+110℃
Sealing material NBR
Custom made Available

This is the specification of the customized hydraulic oil filter element.  If you are in need of custom oil filter, please contact us for a quote.

Features

Appearance Design: The filter layer typically features a corrugated (pleated) design to maximize filtration area, with pleat height generally not exceeding 20mm.
Material Selection: Stainless steel is commonly used, offering corrosion, heat, and wear resistance, uniform porosity, and high flow rate per unit area.
Pressure Differential Withstand: Conventional filter elements can withstand a differential pressure of 0.35-0.4 MPa, while special high-pressure filter elements can withstand system pressures of 32-42 MPa.
Temperature Adaptability: Some filter elements can operate stably in high-temperature environments up to 135°C.
These filter elements are widely used in hydraulic systems, lubrication equipment, petrochemicals, textiles, electronics, and mechanical processing, as well as in rolling mills, continuous casting machines, and thermal and nuclear power plants.
Didn't find your industry solution? Consult our technical experts immediately.

Manufacturer & Supplier of Hydraulic Oil Filter Element

Every paper hydraulic oil filter element Huahang Filter produces undergoes meticulous quality control, from raw material selection to finished product shipment. While the paper core may seem simple, every detail—from paper type and resin content to fold uniformity and glue oil resistance—affects its performance. This experience is the culmination of over twenty years of dedicated effort.

Our workshop is equipped with automated paper folding machines, end cap assembly lines, and testing equipment to ensure consistent quality across every batch. Most of our workers have many years of experience here, familiar with every stage of production. We believe that good products stem from a dedicated attitude and solid craftsmanship.

Here is why customers choose Huahang Filter for their paper filter element needs:

  • Consistent Pleat Geometry: Our automated pleating machines produce uniform pleat heights and spacing across every element. Consistent pleats mean consistent filtration performance and predictable pressure drop characteristics .
  • Quality Raw Materials: We source resin-impregnated paper from reputable mills that specialize in filtration media. The paper is tested for basis weight, thickness, air permeability, and burst strength before production .
  • Secure Bonding Process: End caps are attached using specially formulated adhesives that maintain their bond in hot oil over extended periods. We test bond strength regularly to ensure reliability .
  • Rigorous In-Process Inspection: Throughout production, elements are inspected for dimensional accuracy, media integrity, and seal quality.

Custom Service

At Huahang Filter, we offer robust customization services to tailor the TR-20230 filter element to your specific needs.

  • Custom Filtration Ratings: Available from 1μm to 100μm to match your exact particle removal requirements

  • Custom Seal Materials: NBR, Viton, EPDM, or PTFE-encapsulated options

  • Custom End Caps: Carbon steel, stainless steel, aluminum, or reinforced nylon configurations

  • Custom Dimensions: Alternative lengths and diameters to fit unique housings

  • Special Media Options: Glass fiber blends for higher efficiency or wire mesh for cleanable applications

  • Custom Packaging: Bulk packaging or individual boxes with branding and instructions

Related Products

Related Cases

Xinxiang City Huahang Filter Co., Ltd is professional in the production of Hydraulic Filter, Air Filter and Pipe Filter.Product series range from Oil Filter, Air Filter, Water Filter, Polymer Filter,Candle Filter Element, Stainless Steel Filter to filter Coalescer and Separator.

FAQ

What is the difference between a standard filter and a custom filter?

Standard filters are mass-produced in fixed sizes and specifications, while custom filters are designed to match specific equipment dimensions, operating conditions, and filtration requirements. Custom filters improve sealing, efficiency, and service life.

How do I select the right filter for my application?

Filter selection depends on fluid or air type, particle size, flow rate, pressure, temperature, and compatibility with the system. Providing operating data helps ensure optimal filtration performance.

Will your replacement filter cartridges damage my equipment? Is the quality guaranteed?

Absolutely not. Our replacement filter cartridges strictly adhere to OEM dimensions, interfaces, and performance standards, using equivalent or superior filter materials, and have passed rigorous ISO testing and end-user validation. We provide a quality guarantee to ensure the safe operation of your equipment.

We don't have a specific model number, only operating condition requirements. Can you help us select a suitable model?

Yes, but you need to provide:

① the filtering medium (oil, gas, water, chemical liquid?);

② flow rate, pressure, and temperature;

③ required filtration accuracy;

④ connection type.

Our technical team will recommend the most economical solution for you.

How can I ensure that this filter element can be adapted to my device/system?

We have multiple ways to ensure compatibility:


Provide original filter element information: Please provide the brand, model, clear photos or detailed dimension drawings of your existing filter element (especially the interface type and size, length, outer diameter, inner diameter).


Provide equipment information: Tell us your equipment brand, model or application scenario, etc.


Contact us: Our technical team has rich experience and can quickly determine or design a fully compatible replacement filter element based on the information you provide. It is recommended that you contact us directly to obtain the most accurate adaptation plan.

How do you ensure the quality and performance of the filter element?

Quality is our lifeline. We insist on:


Strict material selection: Use high-quality raw materials that meet industry standards.


Advanced technology: Use automated or precision-controlled production processes.


Multiple quality inspections: Implement full-process quality inspections from raw material storage to finished product delivery (including size, sealing, filtration efficiency, integrity testing, etc.).


Performance testing: Key products will undergo actual working condition simulation testing.


Compliance with standards: Our production and products comply with [e.g.: ISO 9001].


Customized verification: For customized filter elements, we will confirm key performance indicators with customers and provide test reports (if necessary).

What is a dust collector filter used for?

Dust collector filters remove airborne dust and particulate matter from industrial processes such as welding, grinding, woodworking, and powder handling to protect equipment and improve air quality.

How often should dust collector filter cartridges be replaced?

Replacement depends on dust load, operating hours, and cleaning efficiency. A consistent increase in pressure drop is a common indicator that the filter needs replacement.

Can dust collector filters be cleaned and reused?

Many cartridge filters are designed for pulse-jet cleaning, but they are not permanently reusable. Over time, media fatigue reduces performance and replacement becomes necessary.

What micron rating is best for hydraulic oil filtration?

Common hydraulic filters range from 3 to 25 microns. The optimal rating depends on system sensitivity and manufacturer specifications.

What happens if a hydraulic oil filter is not replaced on time?

Delayed replacement can cause pressure loss, valve sticking, pump wear, and reduced system efficiency, leading to costly downtime.

Where are precision filters commonly used?

Precision filters are widely used in electronics manufacturing, pharmaceuticals, food processing, chemical processing, and high-purity fluid systems.

How does precision filtration affect system performance?

Precision filtration improves product quality, extends equipment life, and reduces unplanned downtime caused by contamination.

What is the difference between a coalescer filter and a separator filter?

They are two distinct technologies often used together to remove liquids from a gas or liquid stream. The key difference is their core function:

A Coalescer Filter merges tiny, invisible liquid droplets into large, heavy ones.

A Separator Filter catches and drains those large droplets from the flow.

How They Work:

Coalescer: The stream passes through a special media (like fine fibers). Microscopic aerosol droplets collide and merge (coalesce) into drops large enough to drain. It solves the problem of suspended mist.

Separator: The flow then enters a chamber with baffles or vanes. The now-large droplets hit the surfaces, fall out by gravity, and collect in a sump. It provides the final, clean separation.

Are stainless steel filter elements washable?

Yes, most stainless steel filter elements can be cleaned using backflushing, ultrasonic cleaning, or chemical cleaning methods.
373-5471699
info@huahangfilter.com
+86 13781947634

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