Description
Technical Parameters
Chemical Composition & Material Compliance
| SKL Clip Model | Core Material Grade | Chemical Composition (Mass %) | Hardness (HRC) | Fatigue Life (Cycles) | Surface Treatment | Compliance Standards | Material Compliance Certification |
|---|---|---|---|---|---|---|---|
| SKL-12 | 60Si2MnA | C:0.56-0.64; Si:1.60-2.00; Mn:0.60-0.90; P≤0.03; S≤0.03 | 42-47 | ≥5,000,000 | Oiled/Oxide Black | DIN 17221, GB/T 1222 | RoHS, REACH |
| SKL-14 | 60Si2CrA | C:0.56-0.64; Si:1.40-1.80; Mn:0.40-0.70; Cr:0.70-1.00; P≤0.03 | 42-47 | ≥6,000,000 | Dacromet Coating | UIC 864, EN 13481-1 | ISO 9001, CE |
| SKL-15 | 55Si2Mn | C:0.52-0.60; Si:1.50-2.00; Mn:0.60-0.90; Cr≤0.35; S≤0.03 | 43-46 | ≥4,500,000 | Hot-Dip Galvanizing | BS 970, AREMA | ASTM A967, REACH |
| SKL-20 | 38Si7 | C:0.35-0.42; Si:1.50-1.80; Mn:0.50-0.80; P≤0.03; S≤0.03 | 41-45 | ≥5,000,000 | Color Painting | NF F 500-50, DIN 17221 | ISO 14001 |
| SKL-3CR | 60Si2CrVA | C:0.56-0.64; Si:1.40-1.80; Cr:0.70-1.00; V:0.10-0.20 | 44-48 | ≥8,000,000 | Zinc Plating | ISO 683-1, AREMA | IATF 16949 |
System Adaptability & Functional Characteristics
| SKL Clip Model | Matched Fastener System | Adaptable Rail Gauge (mm) | Adjustable Gauge Range (mm) | Track Stiffness Adaptation (kN/mm) | Core Functional Feature | Applicable Sleeper Type | Installation Advantage |
|---|---|---|---|---|---|---|---|
| SKL-12 | Concrete Sleeper Standard System | 1435 (Standard) | ±3 | 100-300 | Even buckle pressure distribution | Prestressed Concrete Sleeper | Simple structure; Conventional tool applicable |
| SKL-14 | High-Speed Rail Elastic System | 1435 (High-Speed Standard) | ±5 | 200-400 | Integrated overturning stop (anti-overstretching) | High-Strength Concrete Sleeper | Captive design; No component loss |
| SKL-15 | Heavy-Haul Rail System | 1435/1520 (Dual Gauge) | ±4 | 300-500 | Variable clamping force (via torque adjustment) | Ballasted Concrete Sleeper | Replaceable components; Low maintenance cost |
| SKL-20 | Urban Light Rail System | 1435/1000 (Metro Gauge) | ±2 | 80-200 | Insulating gauge block compatibility | Urban Metro Concrete Sleeper | Quick pre-assembly; Efficient on-site installation |
| SKL-3CR | Mountain Railway System | 1435/1676 (Broad Gauge) | ±6 | 150-350 | Strong lateral load resistance | Anti-Crack Concrete Sleeper | Gauge adjustable; Adapts to rugged terrain |
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