Rail Fast Clip Fastening System

The Fast Clip is an elastic rail fastener that locks into a cast shoulder using a simple lever action. Made from heat-treated spring steel, it applies constant downward force on the rail foot without bolts or threads. Its one-piece design allows rapid manual or mechanized installation. This system is widely used for metro, tram, and freight lines.
Technical Specifications:
| Parameter | Requirement | Typical Value |
|---|---|---|
| Steel type | Spring grade per EN 10089 | C56E2 / 51CrV4 |
| Clip mass | Single unit weight | 0.35 – 0.55 kg |
| Insertion force | Manual lever effort | 250 – 350 N |
| Working deflection | Spring travel after lock | 8 – 12 mm |
| Toe load range | Clamping force achieved | 7 – 11 kN |
| Rail types | Supported profiles | S49, S54, 90 lb, 100RE |
| Fatigue rating | Cycles without cracking | 3 million minimum |
| Temperature range | Service environment | -30°C to +55°C |

Installation & Maintenance Perspective:
- Locking indicator shows clearly when clip reaches correct working position
- No loose small parts means lower risk of foreign object debris on track
- Retaining tang prevents clip ejection under severe lateral wheel impacts
- Visible gap closing confirms proper clamping force without measurement tools
- Remains captive in shoulder even if tension is accidentally released
Maintenance & Operational Perspective
- Nestable shape allows compact stacking reducing warehouse space by 40 percent
- No component mixing required unlike multi-part bolt and spring washer systems
- Single part number simplifies procurement and inventory management completely
- Lightweight design lowers shipping cost per kilometer of track installed
- Indefinite shelf life with basic rust prevention coating applied

Gnee Professional supplier


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