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The Jyntrel Separator Pleated Rigid Box Filter is a medium-efficiency air filter built for high-airflow ventilation and air-handling systems. It captures particles at G4 through F9 efficiency grades using non-woven fibre or high-precision glass fibre media in a rigid box frame with corrugated separators. It suits HVAC engineers, cleanroom designers, and plant operators who need a stable pre-filter that protects downstream equipment in commercial, industrial, and process-air applications.
The filter is rated for a nominal operating face velocity of 2.5 m/s, which aligns with the high-airflow demand of central air-handling units and industrial exhaust systems. In a typical installation, air enters the pleated media pack, passes through deep folds that are held open by corrugated separators, and exits into the downstream duct or plenum. The separators maintain uniform pleat spacing under pressure, so the airflow path stays open even when the filter is loaded with dust.
Because the box frame is rigid, the filter resists deformation and rupture at the stated velocity. The deep-pleat design provides a large media surface area in a compact face size, which lowers face velocity through the media and supports high dust-holding capacity. This behaviour is useful in systems where airflow is constant but dust loading varies, such as paint shops or pre-filter stages ahead of high-efficiency final filters.
The operating environment should be considered when selecting media and frame. Non-woven fibre media are commonly used in general ventilation and pre-filtration, while glass fibre media are chosen where finer particle capture is required. Aluminium or galvanised steel frames are available to suit the installation location and the mechanical loads of the duct system. Jyntrel confirms the final configuration against your airflow, velocity, and contaminant profile before production.
The filter covers G4, M5, M6, F7, F8, and F9 efficiency grades, allowing one product family to serve multiple stages in a ventilation train. Its rigid box structure with corrugated separators maintains pleat geometry under airflow, which helps keep pressure drop predictable as the filter loads. The deep-pleat media pack delivers high dust-holding capacity, extending service intervals in dusty industrial or commercial settings.
As a pre-filter, the separator box filter protects final-stage units and coils from coarse and medium particulate, supporting stable performance of the downstream system. The combination of high airflow capability and a rigid frame makes it suitable for intake sections of air-handling units, exhaust plenums with elevated velocity, and cleanroom pre-filtration where reliability matters more than minimum initial cost.
To recommend the correct configuration, Jyntrel needs the device or system model, the required face dimensions or a dimensional drawing, the design airflow or face velocity, and the operating conditions such as temperature, humidity, and contaminant type. Quantity and target efficiency grade help us confirm the media and frame choice. Custom sizes and non-standard frames are supported under OEM/ODM arrangements, including frame material, media grade, logo, and packaging.
Standard reference sizes include 24×24×21 in (594 × 594 × 534 mm), 24×20×21 in (594 × 492 × 534 mm), 24×24×15 in (594 × 594 × 381 mm), and 12×24×21 in (289 × 594 × 534 mm). These are starting points; the final size is matched to your duct or holding frame.
| Item | Detail |
|---|---|
| Product name | Separator Pleated Rigid Box Filter |
| Efficiency grades | G4 / M5 / M6 / F7 / F8 / F9 |
| Media | Non-woven fibre or high-precision glass fibre |
| Frame and support | Aluminium frame or galvanised steel frame with corrugated separators |
| Nominal operating face velocity | 2.5 m/s |
| Typical applications | Pre-filtration for Class 100 cleanrooms in pharmaceutical and electronics plants; intake sections of commercial air-handling units; dust removal in paint shops; industrial high-velocity exhaust outlets |
| Standard reference sizes (W × H × D) | 24×24×21 in (594 × 594 × 534 mm); 24×20×21 in (594 × 492 × 534 mm); 24×24×15 in (594 × 594 × 381 mm); 12×24×21 in (289 × 594 × 534 mm) |
| Customisation (OEM/ODM) | Custom sizes and non-standard frames; backed by a 50,000 m² plant and CNAS testing laboratory; ISO 9001/14001/45001 and IATF 16949 certified |
Jyntrel operates multiple automated production lines with a monthly capacity of millions of pieces, supported by a 50,000 m² manufacturing plant in Zhongshan, Guangdong, China. This capacity base supports stable supply for OEM programmes and export orders.
Our in-house laboratory is CNAS-accredited and can issue test reports covering filtration efficiency, dust-holding capacity, and resistance. The plant holds IATF 16949 certification (obtained in 2024) and ISO 9001, ISO 14001, and ISO 45001 system certifications. Products comply with REACH and RoHS environmental requirements, and compliance documents are available on request.
With more than 20 years of filtration product development and manufacturing experience, Jyntrel has exported to Europe, the United States, Japan, and South Korea for over two decades. More than 1,000 filtration solutions have been developed, and quality control follows IQC, IPQC, and OQC through the process.
To receive a tailored recommendation and quote, please share your device or vehicle model, required size or drawing, design airflow or water flow, operating conditions (temperature, humidity, contaminants), and estimated quantity. Our team will confirm the suitable efficiency grade, frame, and media for your system. Contact Jyntrel to start the selection process.
Yes. The Jyntrel Separator Pleated Rigid Box Filter is rated for a nominal operating face velocity of 2.5 m/s. The rigid box frame and corrugated separators maintain pleat spacing under airflow, helping the filter resist deformation at elevated velocities. Confirm your actual velocity with our team so we can match the media and frame to your system.
We need the design airflow (m³/h) or face velocity (m/s) for the filter location, the duct or holding-frame dimensions, and the expected contaminant loading. Temperature, humidity, and any space constraints also help. With these inputs, Jyntrel can recommend the efficiency grade and frame configuration.
The filter is available in G4, M5, M6, F7, F8, and F9 grades, covering medium-efficiency pre-filtration through to finer particle capture. Media options include non-woven fibre and high-precision glass fibre. Selection depends on your target particles and the downstream filter you are protecting.
Yes. Jyntrel supports OEM/ODM customisation of dimensions, frame material (aluminium or galvanised steel), media grade, logo, and packaging. Non-standard frame designs are possible. Share a drawing or the required face size, and we will confirm feasibility and lead time.
Samples are available for evaluation. For standard specifications, samples can be arranged promptly; custom sizes typically require 7–15 days for sample development. Each sample can be supplied with a CNAS test report covering efficiency, initial resistance, and dust-holding capacity.
For standard specifications, the MOQ is typically 50–100 pieces; custom specifications are confirmed case by case. Standard items usually ship within 15–20 days, while custom products generally take 25–35 days. Large orders receive a confirmed schedule based on production planning.
Under standard commercial HVAC conditions, the service life is typically 12–18 months, depending on air quality, operating hours, and the final resistance set point. Jyntrel can provide dust-holding capacity data from CNAS testing to help you plan change-out intervals and evaluate total cost of ownership.
The standard aluminium or galvanised steel frame suits most HVAC and industrial environments. For high-humidity or mildly corrosive conditions, we can discuss alternative frame materials and media options. Please share your operating temperature, humidity, and any chemical exposure so we can advise on the most suitable configuration.