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Railroad Fasteners
Overview of Railroad Fastening Systems Railroad fasteners are engineered components that secure rails to sleepers (ties) while maintaining proper gauge, alignment, and electrical isolation. These systems are critical for track stability, safety, and longevity under dynamic train loads. Technical...
Features
Railroad fasteners are engineered components that secure rails to sleepers (ties) while maintaining proper gauge, alignment, and electrical isolation. These systems are critical for track stability, safety, and longevity under dynamic train loads.
Technical Specifications
| Parameter | Standard Range |
|---|---|
| Clamping force | 7-12 kN |
| Longitudinal resistance | ≥9 kN per fastening |
| Electrical resistance | >5Ω (insulated types) |
| Fatigue life | 10⁷ cycles at design load |
| Temperature range | -50°C to +80°C |
Direct Fixation Fasteners
Urban Transit: Vibration-damping designs
Embedded Rail: Concrete anchor types
Bridge Track: Seismic-resistant versions
Ballastless Track: Low-profile systems
Elastic Fastening Systems
| Type | Key Feature | Application | Load Capacity |
|---|---|---|---|
| Pandrol e-Clip | Pre-tensioned spring steel | Concrete sleepers | 10-12 kN |
| Vossloh SKL | Compact clip design | Wood/concrete sleepers | 8-10 kN |
| Nabla SPR | High-retention system | Heavy haul lines | 10-12 kN |
| DE Fastclip | Self-tensioning mechanism | Light rail systems | 7-9 kN |
Key Components
Base Plates
Material: Ductile iron (EN-GJS-400) or forged steel
Functions:
Distribute loads to sleepers
Maintain rail inclination (1:20 or 1:40)
Provide fastener attachment points
Rail Pads
Materials:
EPDM (5-12mm)
PUR (8-15mm)
Composite (steel-rubber)
Performance:
25-40% vibration reduction
30-50% longer sleeper life
Insulators
Types:
Nylon 66 (GF35 reinforced)
Polyurethane
Ceramic (high-voltage)
Requirements:
1,000V insulation
UV/ozone resistance
1
Visual condition check
2
Tension measurement (10% sample)
3
Complete system assessment:
Wear measurement
Crack detection
Corrosion mapping
Why Choose Our Railroad Fasteners?
Precision Engineered - CNC-formed components
Material Science - Advanced alloy development
Proven Reliability - 10+ year service life
Global Support - 24/7 technical assistance
Our Service Processes
Pre-sales Consultancy
1
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Confirmation of order
2
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Production
3
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Multi-Channel Shipping
4
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Confirmation of recei
5
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After-sale Services
6
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