Description
Technical Parameters
Railway Dog Spikes Basic Technical Specifications
| Category | Specification | Details / Value |
|---|---|---|
| Product Name | Railway Dog Spike | |
| Primary Function | To secure flat-bottomed railway rails and baseplates to wooden sleepers (crossties) | |
| Design Principle | Wedge-driven fastener relying on wood fiber compression for holding power | |
| Head Design | Shape | Slanted, chisel-shaped "dog's head" design |
| Function | Fits rail flange contour to prevent rotation | |
| Shank Design | Cross-section | Square/rectangular, tapered |
| Surface | Smooth or slightly textured | |
| Material | Standard | Low-carbon steel (Q235, A36) |
| Coating | Hot-dip galvanized (50-80μm) | |
| Dimensions | Length | 127mm, 140mm, 152mm (5", 5.5", 6") |
| Shank Size | 16mm×16mm at head, tapering to point | |
| Head Size | 32mm×25mm (typical) | |
| Weight | Per Spike | 0.45-0.68kg (1.0-1.5lbs) |
Key Technical Notes:
- Square Shank Advantage: Provides rotational resistance superior to round spikes
- Gradation System: Typically supplied in grades: Common, Best, Premium
- Historical Evolution: Design refined over 150+ years of railway use
- Regional Variations: Slight dimensional differences exist between AREMA, BS, and other standards
- Safety Considerations: Proper driving technique essential to prevent flying spikes
Performance Comparison Context:
| Parameter | Dog Spikes | Modern Elastic Fasteners |
|---|---|---|
| Maintenance Cycle | 1-2 years | 10+ years |
| Installed Cost | Low | High |
| Lifecycle Cost | High | Moderate |
| Suitable Speed | <80km/h | 300+ km/h |
| Vibration Resistance | Poor | Excellent |
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