Railway Fastener Nabla Clips

Railway Fastener Nabla Clips

The Nabla clip, also commonly known as the "Nabla" or "Nabul" clip, is a key component in the rail fastening system used to secure rails. Its primary function is to securely connect the rail to the sleeper, maintain track gauge, and prevent longitudinal and lateral movement of the rail relative to the sleeper.
Send Inquiry
Chat Now
Description
Technical Parameters

Nabla Clip Technical Specifications Table

Category Parameter Specification Standard/Value
Environmental Temperature Range -40°C to +80°C (retains >85% load) EN 13481-5
  Corrosion Resistance Salt spray >1200 hours (HDG coating) ISO 9227
Installation Rail Profile UIC 54/60, BS 75R-113A Profile-matched
  Sleeper Type Concrete (B70/B90), wood, or steel sleepers Requires shoulder block
  Installation Speed 10-15 sec/clip (tool-free manual press) Crew output: 600-800 clips/day
Standards Europe EN 13481-5, TSI INF 130/2014 TSI certified
  North America AREMA Chapter 30 (modified) FRA-approved
  Asia TB/T 3065 (China), JIS E 1101 (Japan) CRCC/JIS certified

Railway Fastener Nabla Clips

Nabla Clip Series Comparison

Model Clamp Force Length Coating Best For Service Life
KPW-12 8-9 kN 140mm ZnAl15 Light rail/tram 15 years
KPW-14 10-11 kN 145mm ZnAl15+epoxy Metro/conventional rail 20 years
KPO-16 11-12 kN 160mm Stainless steel Coastal/high-humidity 25+ years

Key Advantages

  • Tool-Free Installation: ∇-shape allows manual pressing (no hydraulic tools needed)
  • Vibration Damping: 30% better than SKL clips (per EN 13146-2)
  • Anti-Theft: No loose parts (vandal-resistant)

gnee-professional supplier

Railway Fastener Nabla Clips

Railway Fastener Nabla Clips

Hot Tags: railway fastener nabla clips, China railway fastener nabla clips manufacturers, suppliers, factory, rail clip surface treatment, rail clip non magnetic coating, rail clip insulating coating, rail clip metallic coating, rail clip surface finish, rail clips