MOQ: 100β
FeaturedHighway Noise Barrier 3.0m Sound-Absorbing Steel Panel
3m highway noise barrier, achieving 25-35dB noise reduction for residential area protection.
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Rail transit noise barrier for metro, light rail, and high-speed railway. Sound-absorbing steel panel, vibration-resistant mount. NRC 0.85, STC 33. MOQ 100m, 15-25 day delivery.
Rail transit noise barriers are specialized acoustic structures designed for the unique noise characteristics of rail transportation. Unlike highway barriers, rail barriers must handle wheel-rail interaction noise (especially on curves), braking squeal, engine/motor noise, and the air-pulse effect of high-speed trains in tunnels.
## Rail Noise Characteristics
Rail noise differs from road traffic noise: - **Wheel-Rail Squeal**: High-frequency (2000-8000 Hz) on curves β extremely annoying. Requires high-NRC barriers. - **Impact Noise**: At rail joints and switches β impulsive, broadband. - **Engine/Motor Noise**: Continuous low-frequency rumble from propulsion. - **Aerodynamic Noise**: At >200 km/h, air turbulence dominates β broadband hiss. - **Ground-Borne Vibration**: Low-frequency (20-100 Hz) transmitted through ground β barriers don't help but resilient mounts do.
## Specialized Design
- **Vibration-Resistant Mount**: Panels mounted on rubber isolation pads β prevents structure-borne vibration transmission through posts - **Higher NRC Required**: NRC 0.90 (vs 0.85 for highway) β absorbs more high-frequency squeal - **Curved-Top Design**: Optional J-shaped or Y-shaped top improves diffraction edge effectiveness by 2-3 dB - **Transparent Sections**: PC (polycarbonate) panels in station areas for visibility β NRC 0.10 but STC 30 - **Anti-Graffiti**: Optional anti-graffiti coating on station-area panels
## Key Advantages
- **Rail-Specific**: Tuned for wheel-rail noise spectrum. Standard highway barriers insufficient. - **Vibration Isolated**: Rubber mounts prevent rail vibration from transmitting through barrier structure. - **Curved Top Option**: 2-3 dB additional reduction vs straight top β critical for tight noise limits. - **Transparent Sections**: PC panels at stations maintain visibility and passenger safety. - **Aerodynamic**: Smooth profile for high-speed rail β no turbulence generation. - **Durable**: 30+ year life. Resistant to rail dust, brake dust, and weather.
## Technical Specifications
| Parameter | Value | |-----------|-------| | Panel Height | 2.5m, 3.0m, 4.0m (custom) | | Panel Width | 0.5m (standard) | | Panel Thickness | 100mm | | Outer Skin | 0.8mm perforated galvanized steel | | Core | 50mm mineral wool, 100 kg/m3 | | Inner Skin | 0.6mm solid galvanized steel | | NRC | 0.90 (rail grade) | | STC | 33 | | Insertion Loss | 12-16 dB(A) | | Mount Type | Rubber vibration isolation | | Post Type | H-section steel HEB 100 | | Post Spacing | 2.0m | | Wind Load | 1.2 kPa (rail design β includes train pulse) | | Transparent Option | 15mm PC panel, STC 30 | | Top Design | Straight or curved (J/Y shape) | | Fire Rating | A1 | | Standard | GB/T 19889, EN 16272 |
## Applications
- **Metro Residential Sections**: Underground-to-elevated transitions near housing - **Urban Light Rail**: Street-level and elevated LRT corridors - **Intercity Railway**: Ballasted track through suburban areas - **Elevated Viaduct Transit**: Metro and rail viaducts through urban areas - **High-Speed Railway**: 250-350 km/h lines through sensitive areas - **Station Platforms**: Platform screen doors and edge barriers - **Depot & Maintenance**: Vehicle maintenance facility perimeters
## Packaging & Delivery
- **Packaging**: Panels palletized with foam separators. Posts bundled. - **Container Loading**: 20ft GP ~ 200-350 m2; 40ft HQ ~ 400-700 m2 - **Lead Time**: 15-25 days standard; 25-40 days curved-top custom - **Shipping**: FOB Tianjin / CIF / DDP
Rail transit noise barrier for metro, light rail, and high-speed railway. Sound-absorbing steel panel, vibration-resistant mount. NRC 0.85, STC 33. MOQ 100m, 15-25 day delivery.
| Panel Height | 2.5m, 3.0m, 4.0m |
|---|---|
| Panel Width | 0.5m |
| Panel Thickness | 100mm |
| Outer Skin | 0.8mm perforated galvanized steel |
| Core | 50mm mineral wool, 100 kg/m3 |
| Inner Skin | 0.6mm solid galvanized steel |
| Nrc | 0.90 (rail grade) |
| Stc | 33 |
| Insertion Loss | 12-16 dB(A) |
| Mount Type | Rubber vibration isolation |
| Post Type | H-section HEB 100 |
| Wind Load | 1.2 kPa |
| Transparent Option | 15mm PC, STC 30 |
| Top Design | Straight or curved (J/Y) |
| Standard | GB/T 19889, EN 16272 |
| MOQ | 100 pieces |
FOB Tianjin, per m2
MOQ: 100β
Featured3m highway noise barrier, achieving 25-35dB noise reduction for residential area protection.
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