The W14 Fastening System
is meticulously crafted in adherence to the prestigious EN13481-2 standards, ensuring remarkable performance by supporting a maximum permissible axle load of 260kN.
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It is widely adopted across Europe, Asia, the Middle East, North America, and Latin America, reflecting its global trust and reliability.




Technical
Specification of the W14 Fastening System
- Typical Application - Ideally suited for high-speed and conventional rail networks featuring robust concrete sleepers on durable ballasted tracks.
- Axle Load - Designed to withstand a maximum threshold of 260kN, ensuring long-term performance.
- Speed - Exceptionally suitable for High-Speed (HS) railways operating at ≥ 250km/h and Conventional Rail (CR) networks at ≤ 250km/h.
- High Rail Longitudinal Resistance - Provides a minimum of 9kN to ensure unwavering stability under dynamic conditions.
- Electrical Resistance - Surpasses 5 kΩ, offering superior insulation to safeguard against electrical disturbances.
- Clamping Force for SKL14 (Nominal) - Ensures secure fastening with at least 9kN of clamping force.
- Gauge Adjustment - Offers a flexible adjustment range of ±10mm, accommodating a variety of track configurations.
- Rail Pad Material - Engineered from high-quality EVA to provide optimal durability and performance.
- Enhanced Security - Includes the option to use anti-theft screws with uniquely designed triangular heads for added security.
- Pre-Assembly - All components are expertly designed for efficient pre-assembly at the sleeper factory, streamlining installation.
4 pcs Screw Spike
Ss25
-160
4 pcs Flat Washer UIs7
4 pcs Rail Clip SKL14
4 pcs Guide Plate Wfp14K-12
4 pcs Plastic Dowel SDU9
2 pcs Rail Pad Zw148/185/6
Technical Parameters
| Part name | Type | Material | Finish | Remark |
| SKL14 tension clip | Dia. 13mm | 60Si2CrA, 38Si7 | Plain oiled, color painting, or the other required ones. | Hardness: 42-47HRC Fatigue test: When the clip spring deflection reaches 9.1mm and the swing deflection is 1.42mm, the fatigue life will be 5 millions cycles without breaking. Standard: DIN17221, GB/T1222 |
| Ss35 screw spike | M24×150mm M24 ×160mm M24×180mm | Grade 4.6: Q235 Grade 5.6: 35# Grade 8.8: 45# | Plain oiled, black oxide, galvanized, hot dip galvanized, Dacromet and sherardized | Standard: ISO898-1, UIC864-1 and NF F500-50 |
| Plain washer | Uls7 | Q235 | Plain oiled, black oxide, galvanized, hot dip galvanized, Dacromet and sherardized | Standard: EN10025, EN10139 |
| Plastic dowel | For different sizes of screw spike | HDPE, Reinforced Nylon 66 (PA66) | Black, blue, yellow, green or other color | For insert into concrete sleeper |
| Guide plate | UIC54, UIC60, 50kg rail, 60kg rail, and other sizes as ordered | Reinforced Nylon 66 (PA66) | Black, blue, yellow, green or other color | Different designs are available. |
| Rail pad | UIC54,UIC60, and size as ordered | EVA, or rubber | Black, blue, yellow, green or other color | Different designs are available. |
















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