Metal sound-absorbing and noise-reducing panels are functional acoustic panels made from metal substrates through precision perforation and anti-corrosion surface coating. They are often combined with sound-absorbing cotton, dust-proof non-woven fabric, and a sealed back panel to form a complete noise reduction system. Their primary function is to absorb excess acoustic energy, reduce environmental reverberation time, minimize noise reflection, and improve the indoor acoustic environment. At the same time, they retain the structural strength of the metal, offering fire resistance, impact resistance, and dimensional stability. They can be used as wall cladding or ceiling panels and are widely employed in noise control projects.
Hole diameter and perforation rates can be adjusted as needed. Solutions are tailored to specific on-site noise conditions to effectively reduce reverberation and echoes, improving noisy environments in venues and factories.
Unlike paper or wood-based acoustic panels, the metal substrate offers a high fire rating and impact resistance. It is resistant to moisture and mold, making it suitable for humid or dusty environments.
Supports polyester or fluorocarbon (PVDF) coatings with customizable colors; suitable for outdoor use, extending the panel's service life.
Standardized panels allow for simple assembly and compatibility with steel keel systems, facilitating convenient on-site installation and shortening project timelines.
Panels, sound-absorbing cotton, non-woven fabric, and back panels of metal sound-absorbing and noise-reducing panels can be supplied as a complete package, eliminating the need for customers to source components from multiple suppliers.
Panel dimensions, perforation patterns, and colors can be customized according to project drawings to suit various architectural and decorative styles.
| Item | Parameter Description |
|---|---|
| Base Plate Material | Color steel plate, aluminum alloy plate, 304 stainless steel plate |
| Base Plate Thickness | 0.5–1.2mm, customizable |
| Hole Pattern | Mainly round holes and slotted holes; other hole patterns available upon customization |
| Punching Aperture | 3–10mm |
| Perforation Rate | 15%–40%, adjusted according to acoustic requirements |
| Punching Arrangement | Staggered arrangement and inline arrangement |
| Standard Panel Size | Custom-sized production; width on demand, length cut per project |
| Surface Treatment | Polyester coating, fluorocarbon coating, anodizing |
| Auxiliary Matching Materials | Centrifugal glass wool / rock wool sound-absorbing cotton, dust-proof non-woven fabric, galvanized back panel |
Metal sound-absorbing and noise-reducing panels serve as core components for noise barriers along highways, railways, and urban elevated roads. Sound barrier acoustic materials require an insertion loss of ≥12 dB and an average sound absorption coefficient of ≥0.60 across the 125–4000 Hz octave bands; composite panels featuring a combination of circular perforations and louvers are designed to meet these specifications, with the louvered version also providing ventilation capabilities where required.
Aluminum alloy panels are used for the interior walls of tunnels and platform surfaces in both elevated and underground rail systems, mitigating train noise impact on nearby residents while meeting fire safety and weather resistance standards for tunnel environments.
Data centers, telecommunications rooms, and substations generate mixed broadband noise—comprising low frequencies below 125 Hz and mid-to-high frequencies between 500 and 4000 Hz. Micro-perforated panels installed on a framework—with an air cavity and sound-absorbing felt backing—create a multi-layered "sound absorption, sound insulation, and damping" structure capable of reducing equipment room noise from 85 dB(A) to 65 dB(A).
Perforated panels are used for sound-absorbing wall surfaces and ceilings in theaters, concert halls, stadiums, and multi-purpose halls. By adjusting perforation rates, hole diameters, and cavity depths, reverberation times can be precisely shaped across specific frequency bands.
Metal sound-absorbing panels are utilized in facilities such as textile mills, power plants, and pump rooms where humidity and corrosion would damage fiber-based materials; lightweight aluminum alloy acoustic enclosures are used for cooling towers and heat pump units, ensuring durability and performance without degradation during long-term outdoor exposure.
Following production, each metal sound-absorbing and noise-reducing panel undergoes inspection for perforation quality and surface coating integrity, ensuring the absence of scratches, burrs, or deformation.
Protective film is applied to both the front and back of the panels, and protective spacers are placed between panels to prevent surface scratches during handling and transport.
Neatly stacked on reinforced wooden pallets with moisture-proof treatment applied to the pallet bases; accompanying sound-absorbing cotton, non-woven fabric, and back panels are packed separately and labeled distinctly from the main panels.
Plastic corner protectors are installed on the four corners of the panels to prevent damage from bumps or impacts during loading and unloading.
The entire load is wrapped in waterproof/rainproof film and secured with steel strapping; external labels indicate the product model, specifications, quantity, and batch number.
Pallets are loaded via crane to minimize damage caused by manual handling; phased shipments can be arranged to align with the project schedule and construction pace; a shipping manifest and material specifications are included with the delivery.
We hold a valid business license and 3A enterprise credit certification. We have established a comprehensive factory inspection process; every batch of metal sound-absorbing and noise-reducing panels undergoes sampling tests, with item-by-item verification of panel thickness, perforation precision, coating thickness, and surface flatness—ensuring no substandard products leave the factory. All raw materials are sourced as coils from reputable manufacturers, and base material certificates are available. The coating process is strictly controlled to ensure durability and weather resistance for outdoor use. Production takes place entirely in our own facilities without outsourcing, ensuring full traceability of quality. For large-scale projects, we accommodate client inspection requirements by providing samples for third-party testing. We maintain unified quality control over both the panels and the accompanying sound-absorbing accessories, ensuring consistent standards across the entire system; this eliminates compatibility issues associated with multi-vendor components and reduces project quality risks.
Yes, they are effective. When the aperture is reduced to the sub-millimeter level, the perforations themselves provide sufficient acoustic resistance. Broadband sound absorption is achieved through Helmholtz resonance—eliminating the need for fibrous filling—which is why micro-perforated versions are specified for cleanrooms and precision equipment rooms.
For indoor humid environments, aluminum alloy substrates are the preferred choice; for outdoor humid environments, a fluorocarbon coating treatment is required, as standard color-coated steel panels are not recommended for long-term outdoor use.
NRC (Noise Reduction Coefficient) is the arithmetic mean of the sound absorption coefficients at four frequencies: 250, 500, 1000, and 2000 Hz. Our panels achieve ratings of 0.70–0.95; recommended specifications are ≥0.65 for noise barriers, ≥0.70 for architectural acoustics, and ≥0.85 for high-end venues.
Yes, we can match colors based on provided charts; for large orders, we can produce a sample for approval before proceeding to full-scale production.
They are compatible with standard light-gauge steel or structural steel framing; we can provide installation guidelines, and standard steel structure installation teams can handle the work.
Paint will not peel under normal use for products that pass factory quality control; damage caused by human impact or scratches from sharp objects is not covered by the warranty, so please unpack and inspect the appearance promptly upon receipt.
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