How do rail pads work together with rail eastic clips?
Rail pads and elastic clips work as a team in railway fastening systems, with the rail pad (rubber/polyurethane mat) placed between the steel rail and the sleeper to absorb shocks, reduce noise/vibration, and protect the sleeper, while the elastic clip (spring steel) clamps down on the rail, providing the strong holding force, ensuring correct gauge, and working with other parts (like base plates/shoulders) to create a secure, resilient track structure that handles train loads safely.
How They Cooperate:
- Load Distribution & Vibration Damping: The rail pad acts as a cushion, taking the direct impact and spreading the load from the rail foot to the sleeper, reducing wear and preventing crushing.
- Clamping & Securing: The E-clip (or similar elastic clip) applies constant, strong pressure (clamping force) onto the rail, holding it firmly against the pad and base plate.
- Elasticity & Resilience: The pad provides compliance (flexibility), while the spring steel clip adds elastic recovery, allowing the system to absorb dynamic forces from trains without losing tightness.
- Insulation: The pad often provides electrical insulation, preventing signal interference in track circuits, a role sometimes shared with insulators.
- Integrated System: Together with base plates, shoulders, and insulators, they form a complete unit that keeps the rail fixed, maintains track gauge, and allows for slight rail movement without compromising safety or track integrity, especially important for concrete sleepers.
Types Of Railroad Pad
Rail pads are categorized by material (Rubber, EVA, HDPE, TPU) and design (grooved, flat), serving to cushion impacts, reduce vibration, prevent sleeper abrasion, and provide electrical insulation, with grooved types offering adjustable stiffness for different track needs. Key types include Rubber Rail Pads, EVA Pads, HDPE Pads, and Composite Pads, all crucial for modern rail fastening systems.
| Raw Material | Rubber, EVA, TPEE, HDPE |
| Standard | UIC, AREMA, TB/T2626-95 |
| Application | 43kg/m, 50kg/m, 60kg/m, 75kg/m,115RE, UIC54, UIC60, S49 |
| Model number | 43-7-7, 43-10-7, 50-7-9, 50-10-9, 60-10-17, 60-12-17 |
| Operating temperature | -50~70 degrees |
| Certificate | MSDS, ROHS, REACH |
| Notes | They should be stored in a clean, ventilated place. Don't be in direct sunlight, and keep away from the heat source and chemical reagent. Don't touch the oil, organic solvent, and other chemicals. Banned exposure. |
Types Of Railway Clip
Railway clips, essential for securing rails to sleepers and absorbing shock, come in common types like E-clips, SKL clips, Nabla clips, and Deenik clips, designed for different applications, from heavy-haul to high-speed lines, with major systems including Pandrol (E-clips) and German systems (SKL/HM).
| Series | Type | Hardness | Material | Fatigue life | Surface | Standard |
|---|---|---|---|---|---|---|
| E rail clip | E1,E2,E3 | 44-48HRC | 60Si2MnA: C:0.56-0.64, Mn:0.60-0.90, Si:1.60-2.00, Cr:≤0.35, P:≤0.03, S:≤0.03 60Si2CrA: C:0.56-0.64, Mn:0.40-0.70, Si:1.40-1.80,Cr:0.70-1.00 P:≤0.03, S:≤0.03 55Si2Mn: C:0.52-0.60, Mn:0.60-0.90, Si:1.50-2.00,Cr:≤0.35 P:≤0.03, S:≤0.03 38Si7: C:0.35-0.42, Mn:0.50-0.80, Si:1.50-1.80, P:≤0.03, S:≤0.03 |
For Dia.18 is 3 millions cycles without breaking. For Dia.20 is 5 millions cycles without breaking. |
plain (oiled), Oxide black, color painting or according to customer requirement. |
DIN17221, BS970, GB/T1222 |
| E1609 | ||||||
| E1809 | ||||||
| E1817 | ||||||
| E2001 | ||||||
| E2006 | ||||||
| E2009 | ||||||
| E2055 | ||||||
| E1056 | ||||||
| Vossloh clip& Forged rail clip | SKL1 | 42-47HRC | ||||
| PR rail clip | PR309 | 44-48HRC | ||||
| PR401 | ||||||
| PR601 | ||||||
| PR85 | ||||||
| We can also manufacture customized rail clips following your drawings or samples! | ||||||
GNEE RAIL offers different kinds of railway fasteners to meet client's requirements, such as Elastic Rail Clip and Clamp, Rail Screw Spike, Plastic Dowel, High Tensile Track Bolt with Nut, Rail Base(Tie) Plate, Rail Fish Plate, Railway Shoulder(Insert), Fish Bolt, Railroad Rubber and EVA Pad, etc. Samples and drawings provided by customer, we will manufacture qualified products accordingly.