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Non Woven Fabric Air Filter Cartridge 245×251

Outer diameter
245 mm
Height
251 mm
End caps
Aluminum, 304 Stainless steel
Filter layer
Non woven fabric
Support core
304 stainless steel diamond mesh
Origin
Henan, China
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Products Description
Specification
Features

Products Description

The Non Woven Fabric Air Filter Cartridge 245×251 is a high-performance, cylindrical air filtration element engineered for the removal of airborne particulates, dust, and lint from industrial, commercial, and residential air handling systems. This air filter cartridge is manufactured to your exact specifications, providing a direct drop-in solution for HVAC units, paint spray booths, compressor intake systems, and general ventilation applications where clean air is essential for equipment protection and occupant health.

Nonwoven fabric filter media is a sheet or web structure of directionally or randomly oriented fibers bonded together through mechanical, thermal, or chemical processes, without the weaving or knitting required for traditional textiles. Unlike woven fabrics, which are produced by interlacing yarns, nonwovens are engineered directly from fibers, offering a unique combination of high particle capture efficiency, low airflow resistance, and design flexibility that makes them the most popular choice for dust collector filters today.

Specifications

Outer diameter 245 mm
Height 251 mm
End caps Aluminum, 304 Stainless steel
Filter layer Non woven fabric
Working temperature -20~+110℃
Origin Henan, China
Manufacturer Huahang Filter

This is a kind of custom air filter. If you want to customized the filters, please send details to us to get the price.

Features of Non Woven Fabric Air Filter Cartridge

Low airflow resistance with high air permeability : Non-woven filter media allows large volumes of air to pass through efficiently while maintaining relatively low pressure drop, helping reduce energy consumption in industrial ventilation systems.
High dust-holding capacity : Its multi-layer and porous fiber structure enables effective trapping of large amounts of particulate matter, extending service life in high-dust industrial environments.
Customizable filtration performance : By adjusting fiber density, layering, and surface treatment, non-woven filters can be designed for different efficiency levels, from primary to medium filtration applications.
Cost-effective and easy to replace : Non-woven air filter elements are economical to produce and are typically designed as consumable parts, making them suitable for regular replacement in industrial maintenance cycles.
Compatible with composite functional layers : They can be combined with electrostatic, activated carbon, or flame-retardant layers to enhance particle capture, odor removal, or safety performance in specific industrial conditions.
Didn't find your industry solution? Consult our technical experts immediately.

Primary Application Areas

  • Industrial Ventilation and Air Purification Systems: Non-woven filters are commonly used as pre-filters or medium-efficiency filters in factory ventilation and centralized HVAC systems.
    They help remove dust, fibers, and airborne particles, protecting downstream high-efficiency filters and ventilation equipment.
  • Air Compressor and Power Equipment Intake Filtration: In air compressors, blowers, and similar industrial machinery, non-woven filter elements are used to clean incoming air.They reduce internal wear caused by dust contamination and improve the reliability and service life of the equipment.
  • HVAC Systems (Heating, Ventilation, and Air Conditioning): Widely applied in commercial buildings, industrial facilities, and data centers, non-woven air filters serve as primary or medium filtration layers.They enhance indoor air quality and reduce dust accumulation within HVAC systems, lowering maintenance requirements.
  • Spray Painting and Coating Workshops: In automotive, furniture, and metal coating industries, non-woven filters are used to capture paint mist and fine particles.This helps maintain a cleaner working environment and ensures higher surface finishing quality.
  • Industrial Dust Collection and Pre-Filtration Systems: Non-woven filter media is often used as a pre-filtration stage in bag filters or multi-stage dust collection systems.It reduces the load on primary filters and significantly extends the overall system service life.

Choosing What’s Right Air Filter for You

  • Choose the Custom Paper Filter when you need the lowest upfront cost for a perfect fit in a dry environment with a defined maintenance schedule. It’s a simple “remove and replace” solution.

  • Choose a Washable Polyester Filter if you operate in a high-dust, moist, or demanding environment where the long-term savings of reusability outweigh the higher initial cost and need for cleaning.

  • When Should You Choose an Activated Carbon Filter?

    Choose an activated carbon filter when your air contains:

    • Unpleasant odors (cooking, pets, bathrooms, smoke)

    • Volatile organic compounds (VOCs) from paints, adhesives, cleaning products, new furniture

    • Formaldehyde (from pressed wood products, building materials)

    • Chemical fumes (solvents, ammonia, hydrogen sulfide)

    • Exhaust gases (ozone, nitrogen dioxide, sulfur dioxide)

Manufacturer of Custom Air Filter——Huahang Filter

Huahang Filter is a global manufacturer of industrial filtration products, established in 2003. We operate a modern 26,000㎡ ISO-certified facility and export to more than 120 countries, with exports accounting for over 80% of our business.

As a direct manufacturer, Huahang Filter provides factory‑direct pricing without distributor markups and maintains full material traceability with documentation available upon request. The polyester fabric air filter cartridge is available as a standard stocked size, or can be custom‑manufactured to any dimension, media grade, or end‑cap configuration based on customer drawings or samples.

Choosing Huahang Filter’s air filter cartridge means investing in reliability, cost savings, and peak baler performance.

  • Proven OEM-Quality & Direct Fit: Manufactured to meet or exceed original equipment specifications, ensuring seamless compatibility and optimal baler protection without voiding warranties.
  • Engineered for Longevity & Cost-Efficiency: Our high dust capacity design directly translates to fewer change-outs, lower maintenance costs, and less operational downtime, providing a superior total cost of ownership .
  • Uncompromised Protection: By preventing abrasive particles from entering the system, our filters extend the life of critical engine parts, valves, and seals, preventing costly repairs and major breakdowns.
  • Sustained Performance & Efficiency: A clean air filter maintains proper air-to-fuel ratios and pneumatic system pressure, ensuring your baler runs at rated power, cycles efficiently, and maintains consistent bale density.
  • Trusted by Industry Professionals: A reliable choice for maintenance managers and operations directors who prioritize equipment uptime, safety, and predictable maintenance schedules.

FAQ

Q1: What is the difference between nonwoven fabric and paper air filters?
A: Nonwoven synthetic media offers superior durability, moisture resistance, and longer service life compared to cellulose. Cellulose absorbs moisture and fails quickly in humid conditions; nonwoven polyester resists moisture without degrading. While cellulose may cost less initially, nonwoven media achieves significantly higher dust capacities and longer service intervals, making it more cost‑effective over time. Nonwoven also offers better resistance to acids, alkalis, and solvents.

Q2: Can this filter be cleaned and reused?
A: Nonwoven fabric cartridges are generally disposable – they are designed for single use and replacement. The automatic pulse‑jet cleaning system (where applicable) maintains the cartridge in service by dislodging surface dust, but the element itself should be replaced when differential pressure reaches the change‑out point. Do not attempt to wash or water‑clean nonwoven fabric cartridges, as water may not remove embedded particles and can cause media shrinkage or damage.

Q3: How do I know when to replace the filter element?
A: Monitor the differential pressure gauge on your system. Replace the filter when ΔP increases by 25‑50% above the clean baseline (typically 1.0‑1.5 kPa / 4‑6 inches water gauge for dust collectors). Visible dust emission from the exhaust or reduced airflow at supply registers also indicates filter saturation. For HVAC applications, many users replace disposable filters every 3‑12 months, depending on operating conditions.

 

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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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