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Shoulder Sleepers in Railway
What Are Shoulder Sleepers? Shoulder sleepers are specialized railway sleepers (ties) placed at track transitions, curves, and bridge approaches to provide enhanced lateral stability and load distribution. These critical components help maintain track geometry and prevent rail creep. learn more...
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What Are Shoulder Sleepers?
Shoulder sleepers are specialized railway sleepers (ties) placed at track transitions, curves, and bridge approaches to provide enhanced lateral stability and load distribution. These critical components help maintain track geometry and prevent rail creep.
Types of Shoulder Sleepers in Railway
Concrete Shoulder Sleepers
Pre-stressed mono-block
Twin-block designs
Wide-shoulder variants
Steel Shoulder Sleepers
Corrugated web designs
Box-section types
Composite Shoulder Sleepers
Polymer-concrete hybrids
Recycled plastic variants
Concrete Sleepers Railway Applications
How Many Shoulder Sleepers in Railway Tracks?
Standard track
3-5% of total sleepers are shoulder type
Curved sections
15-20% of sleepers
Bridge approaches
Every 3rd sleeper for 50m
High-speed lines
Up to 10% shoulder sleepers
Railway Sleepers for Sale: Current Inventory
| Type | Material | Quantity | Price Range |
|---|---|---|---|
| Standard Concrete | Pre-stressed | 5,000+ | $25-$75 |
| Steel Shoulder | Cor-ten Steel | 1,200 | $55-$120 |
| Composite | Polymer | 800 | $35-$95 |
| Special Bridge | Reinforced | 300 | $70-$150 |
Accessories:
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Critical Components: Bolts in Railway Systems
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Shoulder sleeper bolts: M24x120mm (high-tensile)
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Fastening systems: Pandrol, Nabla, or Vossloh types
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Installation torque: 300-350 Nm standard
Advantages of Concrete Sleepers
50+ year service life (vs 15-25 years for wood)
Higher track stability (30% better lateral resistance)
Reduced maintenance (50% fewer adjustments)
Fire/vermin resistant
Environmentally friendly (no creosote)
Technical Comparison: Sleeper Types
| Parameter | Concrete | Wood | Steel |
|---|---|---|---|
| Lifespan | 50 years | 15-25y | 30-40y |
| Cost/unit | $60 | $35 | $90 |
| Maintenance | Low | High | Medium |
| Lateral Stability | Excellent | Good | Fair |
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