W14HH Rail Fastening System
The W14HH Fastening System is expertly designed to withstand the challenges of heavy rail traffic, accommodating a maximum permissible axle load of 350 kN, ensuring unparalleled performance and durability. , This sophisticated system is widely acclaimed and trusted across continents such as Europe, Asia, the Middle East, North America, and Latin America,demonstrating its global reliability and effectiveness.
Products Parameters
Technical Specification of W14HH Fastening System
- Ideal for heavy haul applications, this system is optimized for use with concrete sleepers on ballasted tracks, offering exceptional stability and security.
- Axle Load - Max. 350kN
- Speed - Max. 160km/h, promoting efficient and rapid transport.
- High longitudinal rail resistance, ensuring a minimum of 9kN for enhanced safety and reliability.
- Electrical resistance is rated at an impressive ≥ 5 kΩ, ensuring safety and operational integrity.
- Clamping Force for SKL14R (nominal) - 11.5 kN, providing a firm and secure hold.
- Gauge adjustment is available within a versatile range of ±10 mm, allowing for precise calibration.
- Optionally, it can be equipped with an anti-abrasion pad to significantly reduce fastener wear, extending the lifespan and performance of the system.
- All components are designed for seamless pre-assembly at the sleeper factory, streamlining the installation process.
The complete W14HH Fastening System for each sleeper includes the following meticulously crafted components:
4 pcs Screw Spike DHS35-161 for secure anchoring,
4 pcs Flat Washer UIs7 for added stability,
4 pcs Rail Clip SKL14R, providing robust rail support,
4 pcs Guide Plate Wfp14K700R, ensuring precise alignment,
4 pcs Plastic Dowel SDU25, facilitating easy installation,
2 pcs Rail Pad Zw141/175/7 to cushion and protect the rail.
The W14HH type rail fastening system is meticulously engineered for heavy haul rail, accommodating a maximum axle load of 350 kN with unmatched precision.
Each complete set includes 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, providing a comprehensive solution.
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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