Rail Plastic And Rubber Parts Of Railway Fastening
Rail plastic and rubber parts are components, like rail pads and insulators, used in railway systems to reduce vibration, protect tracks, and provide electrical insulation.
What are Rail Plastic and Rubber Parts of Railway Fastening?
Rail plastic and rubber parts in railway fastening systems are components like rail pads, dampers, and insulators that are placed between the rail and the sleeper to absorb vibration, reduce noise, protect the sleeper, and provide electrical insulation. Common materials include rubber (such as polyurethane, EPDM, or SBR) and plastics (like HDPE or nylon), which are chosen for their elasticity, durability, and resistance to wear and environmental factors.
Rail Insulator
A rail insulator is a component installed between a rail and a concrete tie or sleeper to provide electrical insulation and adjust rail gauge.
| Technical Parameter | Unit | Technical Requirement | Value |
| Density | g/cm | 1.3-1.45 | 1.45 |
| Tensile Strength | Mpa | ≥170 | 178 |
| Elongation | % | ≤4.4 | 4 |
| Bending Strength | Mpa | ≥250 | 290 |
| Impact Strength (No gap) | KJ/m2 | ≥80 | 85 |
| Melting Point | ℃ | 250 – 270 | 270 |
| Insulation Resistance | Ω | ≥1×108 | 5×108 |
| Glass Fiber Content | % | 30-35 | 35 |
| Hardness | HRR | ≥110 | 118 |
Rail Plastic Dowel
Rail plastic dowel is also called rail plastic sleeve/plastic insert/concrete dowel/ concrete insert, which is a counter-party fastener for a screw spike or anchor bolt, and it is pre-imbedded into the concrete sleeper or wooden sleeper, installed together with screw spikes, guide plates and rail clips to fasten the rail tracks.
Key functions of Rail Plastic and Rubber Parts
- Vibration and noise reduction: The elastic properties of rubber and plastic effectively dampen vibrations and noise from passing trains, improving both track longevity and passenger comfort.
- Sleeper protection: The pads and other components prevent the steel rail from directly abrading the surface of the concrete sleeper, extending the life of the track structure.
- Load distribution: They help to distribute the load from the rail over a larger area of the sleeper, reducing stress concentrations and fatigue.
- Electrical insulation: Plastic insulators prevent the flow of electrical current, ensuring the integrity of the signaling system.
- Weather resistance: These materials are chosen for their ability to withstand a wide range of temperatures and resist aging from sun and weather exposure.
Product Packaging & Delivery
Packaging for heavy railway fasteners (such as anchor bolts, rail spikes) must balance handling safety and product protection. First, place the products into custom-made semi-circular rubber trays, with the inner grooves perfectly matching the product shape to prevent rolling. Then, place the rubber trays together with the products into steel frames, where the frame height slightly exceeds that of the products, and anti-slip pads are installed at the bottom of the frames.
GNEE RAIL is a certified enterprise in the manufacture of railway fasteners and standard parts in China, holding production licenses issued by the Ministry of Railways. Utilizing advanced warm extrusion technology and high-precision testing equipment, we ensure superior product forming quality. Every railway fastener we produce undergoes thread engagement testing and fatigue resistance verification. GNEE provides custom manufacturing based on customer drawings or samples, with our technical team overseeing the entire process from production progress to quality control. We ensure efficient collaboration from sample confirmation to batch delivery, consistently adhering to the principle of "supplying optimal products at optimal prices," and delivering reliable fastener support for global rail transit projects.
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