Product Name: Rail Nabla Fastening System (Nabla FRE)
Product Overview:
The Rail Nabla Fastening System is an innovative elastic fastening solution designed specifically for modern railway tracks requiring high precision, durability, and ease of installation. Its unique ∇-shaped clip design ensures uniform clamping force, excellent vibration absorption, and reliable performance in various rail applications.
Technical Specifications:
| Parameter | Standard Nabla FRE | Insulated Nabla FRE-I | Heavy-Duty Nabla HD |
|---|---|---|---|
| Clip Type | ∇-shaped elastic spring | ∇-shaped with PA66 insulator | Reinforced ∇-shaped |
| Material | 51CrV4 spring steel | 51CrV4 steel + PA66 sleeve | 60Si2CrA alloy steel |
| Clamping Force | 10–12 kN | 9–11 kN | 13–16 kN |
| Surface Treatment | Zinc flake coating | Epoxy-polyester coating | Hot-dip galvanized |
| Installation Torque | 130–150 N·m | 120–140 N·m | 140–160 N·m |
| Operating Temperature | -30°C to +100°C | -20°C to +80°C | -40°C to +120°C |
| Electrical Resistance | N/A | >10⁹ Ω·cm | N/A |
| Compliance | EN 13481-5, UIC 864 | EN 50122-1, IEC 61373 | TSI, AREMA |
Benefits
Fast Installation: Compatible with manual, electric, or hydraulic Nabla tools.
Vibration Damping: Excellent dynamic behavior for noise and vibration reduction.
Corrosion Resistance: Advanced coating systems for long-term durability.
Insulated Options: Available for electrified tracks and signaling sections.
Low Maintenance: Designed for easy inspection and clip replacement.Applications:
gnee-professional supplier
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