Broadband Rail Damper
description1
| Item | Unit | Requirement |
| Attenuation rate of main frequency vibration (in the range of 0-1000 HZ) |
% | ≥50 |
| Noise reduction | dB | ＞5 |
| Insulation resistance | Ω | ≥10 ⁶ |
| After 5 million times of fatigue loading |
/ | No component damage or peeling off |
Application
The Broadband Rail Damper is used to control rail vibration and noise. By combining constrained layer damping with a phononic crystal structure and using a high-loss-factor damping material, it effectively addresses wheel-rail impact, rolling, and sliding vibrations and noise at the source. At the same time, Broadband Rail Damper increases the rail's vibration decay rate and helps control the initiation and progression of rail corrugation and other related defects.
Structure & Composition
The Broadband Rail Damper system consists of the following components:
• Thermoplastic polyester elastomer material for the rail web and rail foot extension layers
• End caps for the rail web and rail foot
• Polyurethane damping material
• Q235B steel for the rail web and rail foot constraining layers
• 65Mn steel retaining clips
Production capability
We operate a fully automated rail damper production line with an annual output of approximately 100,000 sets of broadband rail dampers for noise reduction. Before, during, and after production, we carry out random sampling inspections on our products. All testing is conducted in our in-house laboratory, which is CNAS-accredited, meaning our test results are recognised under international standards.
You can have confidence not only in our production capacity but also in the quality of our products. If you have custom requirements or complex issues related to special railway lines on Broadband Frequency Rail Vibration Absorber, please let us know. Our professional engineers are ready to provide you with tailored solutions.
Custom Mould Design & Manufacturing
– In-House, Start to Finish
Many of our customers require customized Broadband Rail Damper, which is often a challenge for other suppliers. They tend to focus on standard products, and when customization is needed, a significant portion of the cost goes into tooling molds. At Chang Mei Technology, this is something you don't need to worry about. We have our own in-house mold manufacturing workshop, as well as engineers dedicated to mold design. Based on your specific requirements, we develop tailor-made solutions. The resulting product fit and performance will be far superior to any modified standard product.
We run a full digital workshop with more than 20 CNC machines – Annual output stands at 300 sets of moulds and tooling.
Broadband Rail Dampers are shipped in either heavy-duty cartons or wooden crates, depending on order volume. Each unit is wrapped individually with anti-corrosion and moisture-resistant materials, so the damping layers and structural parts stay intact during transit. Every carton carries a clear label showing the product model, quantity, batch number, and production date.
Outer packaging is provided as standard. For palletized shipments, two choices are available:
• Plywood pallets – suitable for most regular shipments
• Solid wood fumigated pallets – used when export certification is required
• All packaging follows normal export procedures.
If you need specific labeling or marking, please let us know ahead of time.