| Parameter | SKL14 | SKL15 | Industry Standard |
|---|---|---|---|
| Clamping Force | 22.5kN ±1.5kN | 24.8kN ±1.2kN | 18kN |
| Wire Diameter | 14mm (±0.05mm) | 15mm (±0.05mm) | 13mm |
| Fatigue Life | 3.2M cycles (UIC 864) | 3.5M cycles (UIC 864) | 1M cycles |
| Deflection Range | 7-11mm | 8-12mm | 6-9mm |
| Coating Thickness | 85μm HDG (500g/m²) | 90μm HDG (550g/m²) | 250g/m² |
| Operating Temp | -50°C to +120°C | -50°C to +120°C | -30°C to +80°C |
🔩 Engineering Superiority
① Anti-Vibration Design
Triple-wave spring geometry (Patent #US2022178364)
38% higher damping ratio vs. linear clips (FEA verified)
② Corrosion Defense
Layer 1: Zinc-iron alloy barrier (50μm)
Layer 2: Chromate passivation (ISO 1461)
Test Result: 2,500hrs salt spray (ASTM B117)
③ Temperature Resilience
-40°F Charpy impact: 18J (AREMA Sec 2.8.3)
Thermal expansion coefficient: 11.2×10⁻⁶/°F
❓ Rail Engineers' FAQs
Q1: Minimum curve radius for 39-ton axles?
A: 250m radius @ 50mph with SKL15 clips (FRA Class 9)
Q2: Compatible with wooden sleepers?
A: Yes - use nail-keeper plates (PN: NKP-14) to prevent spike uplift
Q3: Salt spray vs. epoxy coating?
A: HDG lasts 4x longer in ballast zones
If you have any needs, please feel free to consult us!
Tag:
Heavy Haul Rail Clips - AREMA Grade E Elastic Fasteners - Hot-Dip Galvanized SKL14/SKL15 (For Concrete & Wood Sleepers)
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Henan Xinda Railway Equipment Co., Ltd
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