JINBIAO Group is a leading manufacturer of high-performance perforated noise barrier systems, combining sound absorption and sound insulation in one engineered panel solution.
JINBIAO Group is a leading manufacturer of high-performance acoustic micro-perforated aluminum panel noise barrier systems, combining wide-band sound absorption and solid sound insulation in one lightweight engineered solution. A micro-perforated aluminum panel features a micro-perforated aluminum face sheet, a sound-absorbing cotton core and a solid aluminum backing panel. The micro-holes on the face sheet absorb sound through micro-perforation resonance, while the sound-absorbing cotton fill inside the cavity absorbs mid- and high-frequency noise, and the solid backing blocks transmission. This dual-action construction makes the micro-perforated aluminum noise barrier the preferred choice for highways, railways, airports and urban corridors where acoustic performance, corrosion resistance and low maintenance matter equally.
A micro-perforated aluminum panel barrier absorbs noise on the exposed face while blocking transmission through the backing structure. The micro-holes — typically 0.5 – 1.5mm in diameter — convert incoming sound energy into heat through resonance inside the panel cavity, where the sound-absorbing cotton fill further dissipates acoustic energy across a broad frequency range. Unlike reflective walls, this micro-perforated aluminum sound barrier protects both sides of a highway or railway — a critical advantage in residential, hospital and school zones where noise arrives from multiple directions. For engineers specifying long-life infrastructure, it offers predictable acoustic performance, excellent weather resistance and negligible maintenance for decades.
| Specification | Details |
| Panel Height | 2m – 8m (customizable) |
| Panel Length | 2m – 4m |
| Panel Thickness | 50mm / 80mm / 100mm |
| Micro-Perforated Face Sheet | Aluminum 5052/6061, 0.8 – 1.5mm, micro-hole diameter 0.5 – 1.5mm, perforation ratio 1% – 3% |
| Acoustic Core | Sound-absorbing cotton, density 40 – 80 kg/m³ |
| Backing Sheet | Aluminum 0.8 – 1.2mm, solid |
| Sound Absorption (NRC) | 0.85 |
| Sound Insulation (Rw) | 10 – 25dB |
| Surface Treatment | Anodizing / powder coating / PVDF |
| Fire Performance | Class A1 non-combustible |
| Warranty | 10 years on structure, 5 years on acoustic performance |
The micro-perforated aluminum panel combines the Maa micro-perforation absorption principle with porous fiber absorption. Each micro-hole behaves as a small resonator: air inside the hole oscillates with the incoming sound wave, and viscous friction at the hole walls dissipates acoustic energy as heat. The sound-absorbing cotton fill inside the cavity further converts mid- and high-frequency sound energy into heat through porous friction, while the solid backing blocks low-frequency transmission. By tuning the hole diameter, perforation ratio, cotton density and cavity depth, engineers achieve broad-band absorption across traffic, rail and industrial noise spectra — typically lowering perceived noise levels by 10 – 20dB at the receiver.
JINBIAO packs every micro-perforated aluminum panel barrier on wooden pallets with protective rubber mats and corner guards, wrapped in moisture-proof film for overseas shipment. Panels are loaded in standard 20ft or 40ft containers with full loading diagrams provided. Standard lead time is 15 – 25 days after order confirmation, with express production available for urgent projects.
We provide full OEM/ODM service: custom dimensions, micro-hole patterns, acoustic performance targets, colors and logos. Our engineering team offers a preliminary solution and quotation during the enquiry stage. Detailed acoustic design and installation drawings are provided after project cooperation is confirmed, ensuring the micro-perforated aluminum sound barrier meets your exact regulatory and budgetary requirements.
Q1: What is a micro-perforated aluminum panel?
A: It is a composite acoustic panel with a micro-perforated aluminum face sheet (holes 0.5 – 1.5mm), a sound-absorbing cotton core and a solid aluminum backing, providing both absorption and insulation in one barrier. The micro-perforated aluminum panel is engineered for easy installation and long service life.
Q2: What NRC value can JINBIAO achieve?
A: Up to 0.85 depending on micro-hole diameter, perforation ratio, cotton density and cavity depth.
Q3: Does the panel contain sound-absorbing material?
A: Yes — the cavity is filled with sound-absorbing cotton, which absorbs mid- and high-frequency noise and works together with micro-perforation resonance for broad-band absorption.
Q4 How long is the warranty?
A: 10 years on structural integrity and 5 years on acoustic performance.
Q5: What is the MOQ?
A: Standard MOQ is 100 square meters; sample orders are welcome for testing.
Q6: Do you provide installation guidance?
A: A preliminary solution and quotation are offered during the enquiry stage. Detailed installation drawings are provided after project cooperation is confirmed.
Need a reliable micro-perforated aluminum panel barrier for your project? Contact JINBIAO Group today for a free quote and acoustic design consultation. Our team will help you select the right micro-perforated aluminum panel configuration for your noise control needs.
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