Industrial factory noise barrier walls are heavy-duty acoustic structures engineered for high-noise industrial environments. The 4.0m height provides enhanced noise reduction for tall industrial equipment and multi-story noise sources — exceeding the 3.0m đường cao tốc standard by 33%.
## Why 4.0m for Industrial?
Industrial noise sources differ from traffic noise:
- **Taller Sources**: Factory buildings, cooling towers, and stacks emit noise at 10-20m height. 3.0m barrier insufficient.
- **Lower Frequencies**: Industrial equipment (compressors, generators, presses) produces more low-frequency noise than traffic. Requires thicker panels.
- **Continuous Exposure**: Industrial noise is 24/7, not intermittent. Higher barrier reduces cumulative exposure.
- **Multiple Sources**: Factory perimeters face noise from multiple simultaneous sources. Taller barrier creates larger shadow zone.
## Acoustic Construction
- **Traffic-Side Face**: 0.8mm perforated galvanized steel (allows sound entry)
- **Core**: 80mm mineral wool insulation (100 kg/m3 density — heavier than đường cao tốc grade)
- **Interior Face**: 0.6mm solid galvanized steel (sound barrier)
- **Frame**: 2.0mm galvanized steel edge channel (heavier than đường cao tốc grade)
- **Acoustic Performance**: NRC 0.85, STC 34, IL 12-18 dB(A)
## Key Advantages
- **Enhanced Noise Reduction**: 12-18 dB(A) insertion loss — reduces perceived loudness by 60-80%
- **Industrial-Grade**: 80mm core + 100 kg/m3 density — handles low-frequency industrial noise
- **Weatherproof**: Mạ Kẽm steel + moisture-resistant mineral wool. 20+ year outdoor life.
- **Modular**: Standard panel 2.0m x 0.5m. Any length/height achievable.
- **Structural**: Heavier frame and posts (HEB 120) for industrial wind loads and potential impact.
- **Fire Resistant**: A1 non-combustible. Meets industrial fire codes.
- **Chemical Resistant**: Optional PVC coating for corrosive environments (chemical plants, bờ biển).
## Technical Specifications
| Parameter | Value |
|-----------|-------|
| Tấm Height | 4.0m |
| Tấm Width | 0.5m (standard) |
| Tấm Thickness | 120mm |
| Outer Skin | 0.8mm perforated galvanized steel |
| Core | 80mm mineral wool, 100 kg/m3 |
| Inner Skin | 0.6mm solid galvanized steel |
| Frame | 2.0mm galvanized steel edge channel |
| NRC | 0.85 |
| STC | 34 |
| Insertion Loss | 12-18 dB(A) |
| Fire Rating | A1 (non-combustible) |
| Post Type | H-section steel HEB 120 |
| Post Spacing | 2.0m |
| Wind Load | 1.0 kPa (industrial design) |
| Zinc Coating | >=120g/m2|
| Optional | PVC coating for corrosive environments |
| Standard | GB/T 19889, ISO 717 |
## Applications
- **Power Plants**: Turbine halls, cooling towers, transformer stations
- **Steel Mills**: Furnaces, rolling mills, descaling areas
- **Cement Plants**: Crushers, mills, kilns
- **Mining & Chemical**: Process equipment, compressors, pumps
- **Warehouse & Logistics**: Loading docks, sorting facilities
- **Construction Equipment Zones**: Crusher/screening plant perimeters
- **Heavy Industry**: Forge shops, stamping plants, foundries
## Packaging & Delivery
- **Packaging**: Tấms palletized (15/pallet due to weight). Posts bundled.
- **Container Loading**: 20ft GP ~ 150-300 m2; 40ft HQ ~ 300-600 m2
- **Lead Time**: 10-20 days standard; 20-30 days custom
- **Shipping**: FOB Tianjin / CIF / DDP