W14HH rail fastening system
The W14HH fastening system is a masterpiece of engineering, crafted to withstand the most demanding heavy rail traffic conditions with a remarkable maximum permissible axle load of 350 kN , Proudly serving railways globally, this system is widely acclaimed in Europe, Asia, the Middle East, North America, and Latin America.
Products Parameters
Technical Specification of W14HH Fastening system
- Expertly engineered for heavy haul operations with concrete sleepers on ballasted tracks, this system is a beacon of reliability
- Axle load - max. 350kN
- Speed - max. 160km/h, ensuring swift and efficient rail operations
- Exhibits high longitudinal rail resistance - min. 9kN
- Electrical resistance ≥ 5 kΩ, providing outstanding performance in diverse weather conditions
- Clamping force for SKL14R (nominal) - 11.5 kN, guaranteeing secure fastening
- Features gauge adjustment flexibility in the range of ±10 mm for precise alignment
- Optionally, enhance the system with an anti-abrasion pad to guard against excessive fastener wear.
- The convenience of pre-assembly at the sleeper factory ensures seamless installation
The complete W14HH fastening system for each sleeper is meticulously composed of the following components:
4 pcs screw spike DHS35-161, crafted for durability
4 pcs Flat washer UIs7, ensuring secure connections
4 pcs Rail clip SKL14R, designed for unmatched stability
4pcs guide plate Wfp14K700R, providing precise alignment
4 pcs plastic dowel SDU25, for reliable positioning
2 pcs rail pad Zw141/175/7, offering enhanced cushioning
W14HH type rail fastening system is an epitome of excellence, meticulously designed for heavy haul rail with an impressive maximum acceptable axle load of 350 kN.
Each complete set is comprised of 4 pcs rail clips SKL14R, 4 pcs sleeper screws DHS35 with flat washers UIs7, 4 pcs guide plates Wfp-12 700R, 4 pcs plastic dowels SDU25, and 2 pcs rail pads Zw141/175/7, ensuring comprehensive support and reliability.
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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