Description
Technical Parameters
Railway SKL Clips - Scenario-Based Selection & Matching Components
| SKL Model | Application Scenario | Compatible Rail (kg/m) | Matching Fastener System | Key Dimensions (mm) | Surface Treatment | Installation Torque (N·m) | Theoretical Weight (g/pc) |
|---|---|---|---|---|---|---|---|
| SKL 1 | Regional Passenger Railways | 43, 50 (UIC 54) | SKL 1 Standard System | Wire Diameter: 13; Height: 38; Opening Width: 18 | Hot-Dip Galvanizing (≥80μm) | 35–45 | 480 |
| SKL 3 | Heavy-Haul Freight Railways | 60 (UIC 60), 75 | SKL 3 Heavy-Duty System | Wire Diameter: 13; Height: 42; Opening Width: 20 | Zinc-Aluminum Coating (10–12μm) | 45–55 | 490 |
| SKL 12 | Urban Metro (Subway) | 50, 60 (GB Standard) | SKL 12 Metro System | Wire Diameter: 14; Height: 40; Opening Width: 19 | Dacromet Coating (≥12μm) | 40–50 | 530 |
| SKL 14 | High-Speed Railways (200–250km/h) | 60 (UIC 60), CRH Special Rail | SKL 14 High-Speed System | Wire Diameter: 14; Height: 45; Opening Width: 21 | Epoxy Powder Coating (≥60μm) | 50–60 | 580 |
| SKL 24 | Mining Railways | 30, 43 (Heavy-Duty Type) | SKL 24 Mining System | Wire Diameter: 12; Height: 35; Opening Width: 17 | Black Oxide + Oiling | 30–40 | 420 |
Railway SKL Clips - Performance Comparison Across Standards
| Standard | SKL Model | Material Grade | Corrosion Resistance (Neutral Salt Spray Test) | Fatigue Life (Load Cycles) | Elastic Deformation Limit | Operating Temperature Range | Quality Certification |
|---|---|---|---|---|---|---|---|
| UIC 864-3 (Int'l) | SKL 1, SKL 3 | 55SiMnMo | ≥600h (No Red Rust) | ≥10⁷ (30–60N·m Load) | ≤1.2mm (After 5000 Cycles) | -40℃ ~ 70℃ | UIC Certification, ISO 9001 |
| DIN 536 (Germany) | SKL 12, SKL 14 | 60Si2MnA | ≥500h (No Red Rust) | ≥8×10⁶ (40–55N·m Load) | ≤1.0mm (After 5000 Cycles) | -35℃ ~ 80℃ | DIN Certification, IEC 61373 |
| GB/T 12611 (China) | SKL 1, SKL 14 | 60Si2MnA | ≥500h (No Red Rust) | ≥10⁷ (35–50N·m Load) | ≤1.1mm (After 5000 Cycles) | -40℃ ~ 75℃ | GB Certification, ISO 14001 |
| AREMA (USA) | SKL 24 | AISI 9260 | ≥400h (No Red Rust) | ≥6×10⁶ (30–45N·m Load) | ≤1.3mm (After 5000 Cycles) | -30℃ ~ 85℃ | AREMA Approval, ASTM A913 |
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