Road Noise Control
For urban roads and expressways where absorption and appearance both matter.
Micro-Hole Sound Barrier for Absorptive Traffic and Industrial Noise Control
Micro-hole sound barriers use perforated metal panels and internal acoustic material to absorb and block noise at the same time. The micro-perforated surface helps reduce reflected noise while keeping a durable exterior.
They are suitable for roads, railways, bridges, factories, equipment zones, and mixed residential industrial boundaries. Panel thickness, perforation pattern, absorber core, frame material, color, and wind load design can be customized.
Product Advantages
- Micro-perforated absorption: Designed around micro-perforated absorption to match key engineering needs more directly.
- Targeted noise reduction: Height and panel type can be designed according to the noise source, sensitive point, and site structure.
- Landscape coordination: Color, panel type, and transparent sections can be customized for the surrounding environment.
- Custom specifications: Size, material, surface treatment, and accessories can be adjusted by drawings or project requirements.
- Easy maintenance: Clear structure supports later inspection, local replacement, and routine maintenance.
Structure
Micro-Hole Sound Barrier is composed of metal micro-perforated front panels, back plates, sound-absorbing material, frames, and post systems. The micro-holes allow sound waves to enter the absorbing layer, while the metal shell provides strength and weather resistance for traffic and industrial noise control.
Working Principle
Micro-Hole Sound Barrier dissipates acoustic energy through micro-perforated panels and the absorbing layer behind them. Sound waves entering the holes lose energy through friction with hole walls and internal material, while the back plate and metal frame provide sound insulation, support, and weather resistance.
Specifications
| Panel material | Galvanized steel sheet, aluminum sheet, or stainless steel sheet |
| Panel structure | Micro-hole, louver, curved, or customized structure |
| Internal material | Rock wool, glass wool, or other acoustic material |
| Surface treatment | Powder coating, fluorocarbon coating, galvanizing |
| Installation structure | H-beam posts, connectors, embedded foundation parts |
Applications
Railway Lines
Reduces operational noise along railways, urban transit, and station yards.
Bridges and Viaducts
Light panels suit bridges, elevated roads, and load-limited sections.
Industrial Equipment
Controls noise around fans, cooling towers, and factory equipment boundaries.