Description
Technical Parameters
Core Functions
- Mechanical Anchoring: Clamps rails to sleepers
- Lateral Resistance: Withstands ≥15kN transverse forces from trains
- Quick Maintenance: Allows manual hammer installation/extraction
Main Types
| Type | Characteristics | Applications | Int'l Equivalents |
|---|---|---|---|
| Dog Spike | Carbon steel with 90° hooked head | Wooden sleeper tracks | - |
| Screw Spike | Threaded shank (≥25kN pull-out) | Concrete sleepers | Vossloh W-type |
| Elastic Spike | Rubber bushing (5-8dB noise reduction) | Urban transit | Pandrol E-clip |
| Insulated Spike | Nylon-coated (≥10⁸Ω resistance) | Electrified sections | - |
Railway Spike Inspection & Maintenance Protocol
| Inspection Item | Tool/Method | Acceptance Criteria |
|---|---|---|
| Tightness Condition | Torque wrench | ≥300N·m (for M24 bolts) |
| Corrosion Depth | Rust gauge | ≤0.3mm |
| Head Integrity | Visual + MPI* | No cracks/deformation |
| Insulation Resistance** | Megohmmeter (1000V DC) | ≥10⁸Ω |
Gnee-Railway parts supplier
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