Description
Technical Parameters
Dynamic Engagement Performance & Contact Stress Distribution
| Model No. | Rail Contact Surface Pressure (MPa) | Contact Stress Uniformity (%) | Dynamic Engagement Force (kN) | Disengagement Resistance (kN) | Contact Area (mm²) | Stress Concentration Factor | Dynamic Engagement Cycle Stability (10⁶ Cycles) | Core Engagement Advantage |
|---|---|---|---|---|---|---|---|---|
| SKL1-CE | 280-320 | ≥82 | 8.5-9.5 | 4.2-4.8 | 180-200 | 1.3 | ≥95% (No engagement loosening) | Stable for low-speed line dynamic loads |
| SKL3-CE | 300-340 | ≥85 | 9.0-10.0 | 4.5-5.0 | 190-210 | 1.2 | ≥96% (Resists subway vibration disengagement) | Vibration-resistant for urban rail |
| SKL12-CE | 320-360 | ≥88 | 10.5-11.5 | 5.2-5.8 | 200-220 | 1.1 | ≥98% (High-speed repeated engagement stability) | Uniform stress for 300km/h+ operations |
| SKL14-CE | 310-350 | ≥86 | 9.5-10.5 | 4.8-5.4 | 195-215 | 1.2 | ≥97% (Heavy-haul impact engagement retention) | Impact-resistant for 35t axle loads |
| SKL21-CE | 330-370 | ≥90 | 11.0-12.0 | 5.5-6.0 | 210-230 | 1.05 | ≥99% (Ballastless track precision engagement) | Ultra-uniform stress for slab tracks |
Cross-National Certification Compliance & Special Medium Tolerance
| Model No. | Key Cross-National Certifications | Certification Test Criteria | Acidic Medium Tolerance (pH 4-5, 1000h) | Alkaline Medium Tolerance (pH 9-10, 1000h) | Oil Pollution Resistance (Mineral Oil, 500h) | Chloride Ion Tolerance (5% NaCl, 1500h) | Core Compliance & Tolerance Advantage |
|---|---|---|---|---|---|---|---|
| SKL1-CC | DIN 17221, UIC 864 | Tensile Strength ≥1300MPa; Fatigue Life ≥3M Cycles | Surface Corrosion Rate ≤0.08mm/a | Surface Corrosion Rate ≤0.06mm/a | No Coating Peeling; Elasticity Retention ≥90% | Corrosion Area ≤5% | Basic compliance for inland general lines |
| SKL3-CC | EN 13481, BS 970 | Hardness 42-47 HRC; Impact Toughness ≥45J/cm² | Surface Corrosion Rate ≤0.06mm/a | Surface Corrosion Rate ≤0.05mm/a | No Coating Peeling; Elasticity Retention ≥92% | Corrosion Area ≤3% | Urban rail compliance + mild chemical tolerance |
| SKL12-CC | AREMA, EN 13146 | Dynamic Stiffness 22-26kN/mm; Clamping Force Retention ≥85% | Surface Corrosion Rate ≤0.04mm/a | Surface Corrosion Rate ≤0.03mm/a | No Coating Peeling; Elasticity Retention ≥95% | Corrosion Area ≤2% | High-speed rail compliance + multi-medium resistance |
| SKL14-CC | ISO 683-1, GOST R 51685 | Yield Strength ≥1150MPa; Fracture Elongation ≥8% | Surface Corrosion Rate ≤0.05mm/a | Surface Corrosion Rate ≤0.04mm/a | No Coating Peeling; Elasticity Retention ≥93% | Corrosion Area ≤2.5% | Heavy-haul compliance + industrial chemical tolerance |
| SKL21-CC | EN 45545-3, Q/CR 699 | Fire Safety EI30; EMC Compliance EN 50121-3-2 | Surface Corrosion Rate ≤0.03mm/a | Surface Corrosion Rate ≤0.02mm/a | No Coating Peeling; Elasticity Retention ≥96% | Corrosion Area ≤1% | High-speed/ballastless track compliance + extreme medium tolerance |
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