W14HH rail fastening system
The W14HH fastening system is specifically engineered to withstand the demands of heavy rail traffic, supporting a maximum permissible axle load of an impressive 350 kN, ensuring durability and reliability in rigorous environments. , This remarkable system is embraced globally, finding its place across Europe, Asia, the Middle East, North America, and Latin America, showcasing its versatile application and international trust..
Products Parameters
Technical Specification of W14HH Fastening system
- Ideal for heavy haul operations, the system is tailored for use with concrete sleepers on ballasted tracks.
- Capable of supporting an axle load up to a remarkable 350kN
- Designed to accommodate speeds reaching up to 160km/h, ensuring efficient and swift rail operations.
- Boasts a high longitudinal rail resistance of a minimum of 9kN, enhancing the stability and safety of rail operations.
- Offers outstanding electrical resistance of ≥ 5 kΩ, crucial for the safety and integrity of the rail infrastructure.
- Delivers a clamping force for SKL14R (nominal) of 11.5 kN, ensuring secure fastening and reliability.
- Features flexible gauge adjustment within the range of ±10 mm, catering to diverse rail specifications.
- For added durability, the system can be optionally equipped with an anti-abrasion pad, effectively minimizing wear on the fasteners.
- All components are conveniently pre-assembled at the sleeper factory, streamlining installation and reducing downtime.
The complete W14HH fastening system, tailored for each sleeper, comprises the following meticulously engineered components:
4 pcs screw spike DHS35-161, ensuring robust anchoring and stability.
4 pcs flat washer UIs7, providing secure and even load distribution.
4 pcs rail clip SKL14R, engineered for firm and consistent rail clamping.
4 pcs guide plate Wfp14K700R, essential for guided and precise alignment.
4 pcs plastic dowel SDU25, crucial for reducing vibration and noise.
2 pcs rail pad Zw141/175/7, offering superior cushioning and protection.
The W14HH type rail fastening system is expertly crafted for heavy haul rail, accommodating a maximum axle load of 350 kN, providing a robust and reliable solution for demanding rail environments.
This comprehensive set includes meticulously crafted components: 4 pcs rail clips SKL14R, 4 pcs sleeper screws DHS35 with flat washer UIs7, 4 pcs guide plates Wfp-12 700R, 4 pcs plastic dowels SDU25, and 2 pcs rail pads Zw141/175/7, ensuring exceptional performance and longevity.
Technical Parameters
| Part name |
Item |
Technical requirement |
Remark |
| SKL14R clip |
Type |
Dia.14mm |
Application for different rail types |
| Material |
60Si2Mn |
Chemical composition(%): C: 0.57, Mn: 0.75, Si: 1.73, Cr: 0.07P:≤0.015, S: ≤0.006 |
| Finish |
Plain oiled, painting, or upon request |
500 hours salt spry test |
| Hardness |
42-47HRC |
|
| Fatigue life |
When clip spring deflection is 9.1mm, swing is 1.42mm, fatigue life is up to 3 million cycles without breaking. |
|
| Standard refers to |
DIN17221, GB/T1222 |
|
| DHS35-161 screw spike |
Type |
M24x161mm |
|
| Grade |
Grade 5.6: 35# |
Tensile strength: ≥500Mpa Yield strength: ≥300Mpa Elongation: ≥20% Cold bending: 90 degree without crack |
| Finish |
Plain oiled, oxide black, zinc plated, hot dip galvanized, Dacromet, Sherardizing |
500 hours salt spry test |
| Standard refers to |
ISO898-1, UIC864-1, and NF F500-50 |
|
| Flat washer ULS7 |
Type |
Uls7 |
|
| Material |
Q235 |
|
| Finish |
Plain oiled, Oxide black, Zinc plated, Hot dip galvanized, Dacromet, Sherardizing |
500 hours salt spry test |
| Standard refers to |
EN10025, EN10139 |
|
| Plastic dowel SDU25 |
Type |
For different sizes of screw spike |
|
| Material |
Reinforced Nylon 6 (PA6) |
Density: 1.15g/cm3 Tensile strength: 66.3Mpa Elongation: 31.3% Melting point: 228ºC Insulation resistance: ≥2.8×1012Ω Hardness: ≥114HRR |
| Color |
Black |
|
| Guide plate Wfp14k 700R |
Type |
UIC54,115RE rail, and size as ordered |
|
| Material |
Reinforced Nylon 6 (PA6+30%GF) |
Density: 1.39g/cm3 Tensile strength: 165Mpa Elongation: 3.5% Melting point: 226ºC Insulation resistance: ≥1.9×1012Ω Glass fiber content: 30-35% Hardness: ≥114HRR |
| Color |
Black |
|
| Rail pad Zw-141-175-7 |
Type |
UIC54, 115RE rail, and size as ordered |
|
| Material |
TPE (Thermoplastic Elastomer ) |
Density: 1.09g/cm3 Tensile strength: 4.23Mpa Tensile Modulus: 2.97Mpa Melting point: 200-220ºC Shore hardness: ≥40D |
| Color |
Black |
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