Haomei Aluminum’s aluminum foil for HEPA air filters, relying on precision manufacturing processes and export-grade quality control, precisely matches the core requirements of filter separator support.
Regarding product specifications, Haomei Aluminum strictly adapts to the core requirements of HEPA air filter separator support, employing a production model that combines standardization and customization. The preferred base materials are 3003 and 8011 series aluminum alloys; the combination of these two forms a complementary performance, representing the optimal fit for HEPA filter separators. The 3003 aluminum alloy features precisely controlled manganese and iron content, utilizing combined refining technology to reduce hydrogen content in molten aluminum, resulting in near-zero inclusion rates. It combines excellent rigidity and corrosion resistance, with a base material strength superior to ordinary pure aluminum, making it suitable for stable support in long-term filtration environments. The 8011 aluminum alloy, belonging to the 8-series alloys, incorporates multiple alloying elements, exhibiting excellent ductility, easy folding and molding, and resistance to brittleness, perfectly matching the complex folding process of filter media. Thickness is controlled between 0.02-0.1mm (20-100 microns), with standard mass-production specifications of 0.03-0.05mm. Thickness tolerance is precisely controlled within ±0.002mm, effectively avoiding uneven filter media support caused by thickness deviations. Width can be customized according to customer filter models, ranging from 135-1200mm. Corrugated processing can be customized with 3-5mm spacing and 2.5-4mm height, adapting to HEPA filter media with different folding densities to meet the filter design needs of various scenarios such as industrial, medical, and electronic applications.
The core technological advantage that distinguishes our aluminum foil for air filter products from those of our competitors lies in our precise production control system, which optimizes the processes to perfectly match the characteristics of 3003 and 8011 aluminum alloys.
In the rolling process, we optimize the pass rate allocation for the elemental properties of 3003 aluminum alloy, employing multi-pass cold rolling combined with precise annealing at 520-535℃ to eliminate internal stress in the aluminum foil and ensure its rigidity and corrosion resistance are fully utilized. For the ductility requirements of 8011 aluminum alloy, we adjust the cold rolling force to balance formability and structural stability, providing stable support for the ultrafine glass fiber filter media while preventing brittleness and deformation during folding.
The surface treatment uses an oil-free clean process to eliminate filter media contamination caused by oil residue. Embossing and coating treatments can also be provided upon request to further improve the adhesion between the two alloy aluminum foils and the filter media, as well as their airflow guidance capabilities.
In terms of precision control, an online thickness detection system is introduced. Each batch of products is sampled for flatness, tensile strength, and corrosion resistance testing. Unqualified products are directly rejected to ensure consistency between the 3003 and 8011 series aluminum foils.
Regarding export compliance, the products are certified to international standards such as EN13403 and ISO29463, meeting the import compliance requirements of the EU, the US, and other regions.
The advantages of using 3003 and 8011 series aluminum foils in HEPA air filters are particularly prominent, considering actual application scenarios and export feedback. Their complementary performance creates a unique competitive advantage.
Firstly, they offer superior structural stability and corrosion resistance. The rust-proof and corrosion-resistant properties of 3003 aluminum alloy effectively resist erosion in humid filtration environments, preventing aluminum foil oxidation and damage. Combined with the excellent ductility of 8011 aluminum alloy, it maintains uniform filter media fold spacing even under ≤500Pa wind pressure and slight vibration, preventing filter media collapse. Compared to paper separators, there is no risk of moisture-induced mold growth or fiber shedding, eliminating secondary pollution.
Secondly, it boasts wide temperature adaptability, with long-term temperature resistance up to 80℃, superior to the hot melt adhesive material of non-segmented filters. It is suitable for high-temperature auxiliary filtration scenarios such as industrial oven exhaust vents and glass melting furnace workshops. The high-temperature stability of the 3003 alloy further enhances the product’s service life.
Thirdly, it is lightweight and easily formable. 8011 aluminum alloy is easy to process and form, while 3003 aluminum alloy ensures structural strength, facilitating filter assembly. Large sizes can also be customized to fit existing installation frames in older cleanrooms, reducing customer adaptation costs.
Fourthly, it has strong export adaptability. Our products are exported to more than 20 countries in Europe, America, and Southeast Asia. They are packaged in export-grade moisture-proof wooden crates with a vertical hanging design to prevent deformation of the aluminum foil edges during transportation. Customized packaging and customs clearance documents can be provided according to customer needs, shortening the delivery cycle.
Leveraging Haomei Aluminum’s years of experience in aluminum foil production and export, our aluminum foil for HEPA air filters always focuses on “precise fit, stability and reliability, compliance and efficiency.” From raw material selection to finished product delivery, every process is fully controlled by technical personnel. This not only meets the production needs of filter manufacturers but also complies with compliance standards in different regions around the world, making it the preferred aluminum foil product for HEPA air filter separator support.
