Select Language The Medium Vibration Damping Fastener is a high-performance engineering solution designed specifically for the non-destructive upgrading of existing railway infrastructures. By integrating a sophisticated nonlinear vibration damping structure—comprising a single-layer backing plate and double-layer composite rubber pads—this system achieves a precise vibration reduction of 6-8dB. It is engineered to mitigate structural fatigue and noise pollution in demanding environments such as urban metro tunnels and high-speed rail corridors without requiring costly modifications to the track foundation.
Designed for seamless integration, these fasteners feature an ultra-thin profile with a minimum structural height of 37mm, ensuring full compatibility with conventional fastener spaces and restricted overhead clearances. By matching the bolt positioning of existing systems, they allow operators to transition from standard fasteners to advanced vibration-damping systems during routine maintenance, drastically reducing construction periods and capital expenditure while enhancing overall riding comfort and structural longevity.
| Damping Level | Medium (Insertion Loss 6-8dB) | Structural Height | 37mm ~ 42mm |
|---|---|---|---|
| Core Structure | Single Steel Plate + Double Rubber Composite | Service Life | 25 Years (-40℃ to 80℃) |
| Material Composition | Thermoplastic Rubber + Natural Rubber | Stiffness Ratio | Dynamic-static stiffness ratio ≤ 1.4 |
| Fatigue Resistance | Deformation < 5% after 3 million cycles | Load Capacity | Anti-eccentric load increased by 30% |
| Safety Standards | EN 14080 Fire Safety Compliant | Environmental Certification | RoHS / REACH Certified |
Dual-layer nonlinear rubber composite synergistically reduces sleeper vibration by 6-8dB, protecting track integrity.
Bolt holes match existing systems perfectly, enabling zero-foundation modification and minimal traffic disruption.
A minimal 37mm height allows installation in space-constrained tunnels and elevated bridges.
Buffers high-frequency dynamic forces on high-speed lines, significantly smoothing the passenger experience.
Combines pre-compression technology, rigid metal backing, and enhanced eccentric load resistance.
Designed for a 25-year lifespan with stable performance across extreme temperatures from -40℃ to 80℃.
Ideal for vibration damping upgrades in existing tunnel lines via direct replacement.
Effective load reduction and noise control for elevated section bridge structures.
Optimized vibration energy dispersion for high-tonnage freight hubs and corridors.
Critical protection for vibration-sensitive switching equipment in station zones.
Provides essential buffering between ordinary ballast and vibration-damping beds.
Maintains elasticity and stability in high-dynamic force elastic track systems.
| Comparison Metric | Traditional Mitigation | Damping Fasteners |
|---|---|---|
| Foundation Work | Extensive Excavation | Zero Modification |
| Construction Period | Protracted / Months | Rapid / Days |
| Installation Cost | High (Civil Engineering) | Low (Component Swap) |
| Traffic Disruption | Severe Service Stops | Minimal Maintenance Windows |
| Structural Impact | Invasive Reconstruction | Non-Destructive Upgrade |
They are engineered with bolt positioning holes that fully match existing fasteners, allowing them to be swapped directly without modifying the concrete track foundation or bed.
Using a double-layer nonlinear rubber composite and a rigid metal backing plate, they dissipate peak energy and increase anti-eccentric load capacity by 30%.
Yes, the ultra-low profile is specifically designed to fit into conventional fastener spaces, overcoming strict height clearances in tunnels and elevated bridges.
These fasteners are designed for a 25-year service life, remaining stable in temperatures ranging from -40℃ to 80℃.
Yes, they are compliant with EN 14080 fire safety standards and have passed both RoHS and REACH environmental certifications.
The medium vibration damping system provides a reliable insertion loss of 6-8dB, significantly reducing track noise and structural fatigue.
