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Explore our primary track fastening and vibration reduction components engineered to withstand extreme static loads and provide outstanding electrical insulation.
An Embedded Rail Track System represents a significant leap forward in structural engineering, particularly when deployed in demanding environments like electrical substations and heavy industrial facilities. Unlike traditional ballasted or direct-fixation track systems, an embedded rail system encapsulates the steel rail within a highly resilient elastomeric polyurethane or rubber profile. This continuous support structure is then cast directly into concrete slabs.
For substations and heavy equipment handling, this configuration offers unmatched mechanical stability, load distribution, and electrical safety. In substations, giant transformers and shunt reactors weighing hundreds of tons must be positioned with absolute precision and kept stable for decades. Simultaneously, these tracks must isolate electrical currents to prevent stray current corrosion and ensure the safety of ground personnel. The integration of advanced elastomeric polymers ensures that the track acts as both a robust structural foundation and a highly effective electrical isolator.
The global push for grid modernization, driven by the rapid expansion of renewable energy sources such as offshore wind and massive solar arrays, has placed unprecedented demands on transmission infrastructure. Substations are growing larger and handling higher voltages (up to 500kV and above). Consequently, the transformers required are heavier and physically larger. The logistics of installing and occasionally replacing these massive assets require ultra-reliable heavy-duty rail tracks.
Industrially, operators can no longer tolerate track failures or high-maintenance rail lines. A single track failure during a transformer installation or maintenance cycle can cause grid connection delays costing millions of dollars. The commercial market is shifting decisively away from traditional wooden or concrete sleeper track designs toward continuous, embedded rail systems. These systems guarantee a service life exceeding 30 years with minimal maintenance, aligning perfectly with the operational lifespans of modern power grids.
As industrial facilities transition toward smart manufacturing and digital twins, embedded rail track systems are evolving to match. The latest trend involves embedding fiber-optic sensors and piezoelectric strain gauges directly within the elastomeric rail encapsulation profiles. This allows for real-time structural health monitoring (SHM), tracking load distributions, settlement rates, and temperature variations under heavy equipment movement.
Furthermore, environmental sustainability is driving material science innovations. Leading manufacturers, like Changmei Technology, are pioneering green chemistry in polyurethane continuous foaming processes. By replacing fossil-based polyols with bio-based alternatives and utilizing recycled rubber granules, the carbon footprint of infrastructure projects is minimized without compromising mechanical performance or electrical insulation properties.
Scenario: Transformer positioning and emergency rollout tracks.
In high-voltage substations, main power transformers must be rolled along dedicated tracks from transport bays to their final concrete pads. These tracks must withstand massive static loads (often over 400 tons) without settling. Additionally, the system must prevent high-voltage induction and stray currents from entering the ground grid, which could disrupt sensitive telemetry and control equipment.
Scenario: Assembly lines and gantry crane runways.
Industrial plants manufacturing turbines, locomotives, or heavy industrial machinery require internal rail networks. The tracks must be completely flush with the workshop floor to allow rubber-tired vehicles, forklifts, and workers to pass unimpeded. Embedded rail systems offer a perfectly level surface while isolating the building structure from severe dynamic vibration caused by moving heavy components.
Scenario: Molten metal ladle cars and scrap transport.
Foundry tracks operate under extreme temperatures and are subject to spills of molten materials and heavy impact loads. Conventional fastening systems degrade rapidly under thermal stress. Encapsulated embedded rails utilize specialized high-temperature resistant polyurethane formulations that absorb physical shocks while resisting thermal degradation, ensuring continuous plant operations.
Founded in 1995, Changmei Technology has been active in the rail transit vibration and noise reduction industry for over 30 years. The company currently offers more than 300 products across six major series, all focused on vibration and noise control for rail transit, substations, and heavy industrial applications.
A highly skilled and specialized engineering team dedicated to researching and developing advanced vibration-damping and electrical insulation materials.
Build a Chinese national brand. To become a pioneer in vibration and noise control materials for rail transit, high-end construction, and precision instrumentation.
Green factory officially comes on stream.
Green Factory Solar cell workshop area: 48,500 m².
Smart factory OA & ERP & MES Full Deployment.
Technology Upgrade: Built the only polyurethane continuous foaming mat production line in China.
Following the 'Specialized, Refined, Distinctive, and Innovative' (SRDI) development path, we are dedicated to advancing the application of vibration-absorbing and noise-reduction materials in urban rail transit.
Industrial Transformation: Entering the Urban Rail Transit Power Supply Sector.
Changmei Established.
| Main Products | Category | Subcategory |
|---|---|---|
| Rail Transit & Industrial Equipment | Rail Transit Systems | Track Vibration Damping & Noise Reduction Products |
| Track Fastening Systems | ||
| Products for Tram/Tramway Track Systems | ||
| Track Power Supply & Protection Products | ||
| Building Vibration Damping | Polyurethane Vibration Damping Pad, Rubber Granules for Vibration Damping, Building Vibration Isolation Bearing | |
| Industrial Equipment Vibration Damping | Vibration Damping Pad for Industrial Equipment |
Our manufacturing infrastructure is equipped with state-of-the-art machinery. The Mold Engineering Department is equipped with more than 20 units of CNC machining centers, EDM machines, wire cutting machines, and other digital processing equipment. We are capable of in-house development of injection molds, rubber molds, and SMC molds for rail transit and substation applications, including automatic core-pulling molds for sleeves. Annual mold and tooling output is 300 sets.
| Category | Output |
|---|---|
| Polyurethane foam isolation mats | 1,500,000 m² |
| Vibration and noise damping products | 500,000 sets |
| Rail power supply insulation and protection products | 100,000 sets |
| Patent & Technical Category | Count |
|---|---|
| National authorized patents | 107 |
| Invention patents | 16 |
| Technical achievements | 28 |
CRCC-Certified Products: 5 categories, 10+ models. Integrated Management System established since 2018.
| Standard | Scope |
|---|---|
| ISO 9001:2015 | Product quality assurance |
| ISO 14001:2015 | Environmental responsibility and corporate commitment |
| ISO 45001:2018 | Occupational health and safety management |
| ISO 22163 | Railway applications – Quality management system (Currently under application) |
Note: Our integrated management systems have enabled full employee participation and raised company-wide awareness of individual responsibility and product excellence.
Browse our complete portfolio of high-performance components designed for heavy industrial equipment, power substations, and transit infrastructures.
