What Rail Fastenings are commonly used with Rail Clips?
As a part of railway fastening system, rail clip is designed for resulting in the role of buckle pressure on the track by bending and twisting. Elastic rail clip is a reliable connection between steel rails. Main rail clip function is as possible as ensure integrity of railway track. In summary, elastic rail clips are used to prevent vertical and horizontal movement of steel rail relative to the railway sleeper. And then, rail clip ensure the normal gauge, so as to ensure the safety of rail vehicles.
Rail clips are commonly used with screws, bolts, nuts, and washers to fasten rails to sleepers, often in conjunction with tie plates and other components like rail pads. Specifically, T-bolts are frequent fasteners for concrete sleepers, while screw spikes are also used, and for wood sleepers, dog spikes are common.
Common fasteners used with rail clips
- Bolts:
Used to create clamping force by tightening them to secure the rail.
T-bolts are frequently used with iron tie plates for concrete sleepers.
- Screw spikes:
A type of screw spike with a threaded shank driven into concrete sleepers for a strong grip.
- Nuts and washers:
Nuts screw onto bolts to provide the final clamping force.
Spring washers are often used with nuts and bolts to maintain tension.
- Tie plates:
A baseplate that sits between the rail and the sleeper, often with a raised feature to hold the rail in place and is secured by the clip and bolt system.
- Rail pads:
Elastic pads placed between the clip and the rail to help absorb shock and vibration.
HDPE
| No. | Technical Parameter | Unit | Technical Requirement | Value |
|---|---|---|---|---|
| 1 | Density | g/cm3 | 0.95-0.98 | 0.95 |
| 2 | Tensile Strength | Mpa | ≥19 | 19 |
| 3 | Elongation | % | >80 | 150 |
| 4 | Melting Point | °C | 170-190 | 190 |
| 5 | Insulation Resistance | Ω | ≥1×1010 | 3.5 ×1010 |
| 6 | Hardness | A | ≥98 | 98(A) |
EVA: Polyethylene 80%, Vinyl Acetate 20%
| No. | Technical Parameter | Unit | Technical Requirement | Value |
|---|---|---|---|---|
| 1 | Density | g/cm3 | 0.95-0.98 | 0.95 |
| 2 | Tensile Strength | Mpa | ≥15 | 16 |
| 3 | Elongation | % | >500 | 550 |
| 4 | Melting Point°C | °C | 170-190 | 170 |
| 5 | Insulation Resistance | Ω | ≥1×1010 | 5.0 ×1010 |
| 6 | Hardness | A | ≥90 | 92(A) |
Rubber
| No. | Technical Parameter | Unit | Value |
|---|---|---|---|
| 1 | Stiffness | KN | 90-130 |
| 2 | Hardness Shore A°C | °C | 72-80degree |
| 3 | Electronic Resistance | Ω | ≥ 106 |
| 4 | Tensile Strength before Aging | Mpa | ≥12.5 |
| 5 | Elongation before Aging | % | ≥250 |
Specific system examples
- E-type, SKL, and Nabla clips: These are common types of elastic rail clips that work with various bolts, screw spikes, and other components in modern track systems.
- Fist Fastening System: A system that uses a rail clip, base plate, and an insulated steel pin.
- Deenik clip: Often used with cast iron shoulders and ribbed baseplates for high-temperature maintenance.
GNEE RAIL offers a diverse range of products and services, including OEM and OBM rail fastening systems for conventional, high-speed, heavy-haul, and metro applications. Its portfolio includes rail clips, pads, tie plates, bolts, and other specialized components. Comprehensive laboratory facilities ensure all products meet rigorous standards, including EN 13146, EN 13481 internationally, and TB standards domestically in China.
