Description
Technical Parameters
↵
Rail screw spike Fastening System
Railway Screw Spikes are threaded fasteners manufactured from high-strength steel, featuring a conical head with drive recess and a continuous helical thread that terminates in a blunt or pointed tip. Unlike conventional spikes that rely on friction, these components develop holding power through mechanical thread engagement with timber fibers or pre-installed synthetic dowels, transforming rotational torque into sustained clamping force for rail fixation.
Technical Specifications:
| Parameter | Timber Screw | Concrete Dowel | Concrete Insert |
|---|---|---|---|
| Engagement Medium | Wood fibers | Plastic dowel | Steel casting |
| Pull-out Resistance | 20-30 kN | 30-45 kN | 50-70 kN |
| Installation Method | Direct drive | Thread forming | Machine thread |
| Removal Cycles | 2-3 times | 5-10 times | Unlimited |
| Corrosion Risk | Surface only | Isolated by plastic | Galvanic potential |
| Replacement Cost | New spike only | Dowel + spike | Insert only |
Installation & Maintenance Perspective:
- Installation torque correlates directly with achieved clamp load
- Torque-to-yield relationships established for each material grade
- Lubricated threads provide 15-20% more consistent tension
- Breakaway torque indicates remaining holding capacity
- Over-torque protection prevents thread stripping failures
Maintenance & Operational Perspective
- Synthetic dowels in concrete receive screw threads directly
- Coiled wire inserts provide renewable thread engagement
- Epoxy-grouted dowels offer corrosion-isolated fixation
- Pre-threaded cast inserts accept machine-grade screws
- Dowel extraction tools enable replacement without sleeper damage
Gnee Professional supplier
Hot Tags: customized screw spikes, China customized screw spikes manufacturers, suppliers, factory, long lasting rail spikes, rail spikes factory, reliable rail spikes, track spikes production, track spikes workshop, value for money rail spikes
