W14HH rail fastening system
The W14HH fastening system is meticulously engineered for heavy rail traffic, supporting an impressive maximum permissible axle load of 350 kN, ensuring robust and reliable performance under substantial stress. , This solution is extensively adopted across continents, including Europe, Asia, the Middle East, North America, and Latin America, marking its global footprint in rail infrastructure..
Products Parameters
Technical Specification of W14HH Fastening System
- Ideal for heavy haul operations, this system is suited for concrete sleepers on ballasted tracks, enhancing track stability and longevity.
- Axle load - max. 350kN
- Speed - max. 160km/h
- High longitudinal rail resistance - min. 9kN, delivering excellent lateral stability.
- Electrical resistance ≥ 5 kΩ, providing superior insulation against electrical currents.
- Clamping force for SKL14R (nominal) - 11.5 kN, ensuring firm grip and security.
- Gauge adjustment in the range of ±10 mm, offering flexibility to adapt to diverse track specifications.
- Optionally, the system can be equipped with an anti-abrasion pad to minimize wear on fasteners, prolonging their lifespan.
- For streamlined logistics, all components are designed for pre-assembly at the sleeper factory, optimizing installation efficiency.
The complete W14HH fastening system for each sleeper consists of the following components, all crafted with precision to ensure optimal performance.:
4 pcs screw spike DHS35-161, delivering secure anchorage.
4 pcs Flat washer UIs7, providing robust foundational support.
4 pcs Rail clip SKL14R, ensuring reliable track engagement.
4 pcs guide plate Wfp14K700R, offering consistent and precise alignment.
4 pcs plastic dowel SDU25, for enhanced structural integrity.
2 pcs rail pad Zw141/175/7, contributing to noise reduction and vibration dampening.
W14HH type rail fastening system is tailored for heavy haul rail, boasting a magnificent maximum axle load of 350 kN to tackle even the toughest railway challenges with ease.
One complete set encompasses 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, 2 pcs rail pads Zw141/175/7, each component designed to work in harmony for superior track stability and performance.
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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