Description
Technical Parameters
Railway Nabla Clips - Structural & Material Specifications
| Model | Wire Diameter | Working Span | Working Height | Core Material | Hardness | Rated Clamping Force | Surface Treatment | Weight |
|---|---|---|---|---|---|---|---|---|
| Nabla-N14 | 14mm | 85±2mm | 35±1mm | 60Si2MnA | 43–47 HRC | 7–9 kN | Hot-dip galvanizing (80μm) | 0.36kg/pc |
| Nabla-N16 | 16mm | 92±2mm | 39±1mm | 55SiMnVB | 44–48 HRC | 9–11 kN | Dacromet coating (12μm) | 0.51kg/pc |
| Nabla-N18 | 18mm | 100±2mm | 43±1mm | 60Si2CrNiA | 45–49 HRC | 11–13 kN | Zn-Al alloy plating (60μm) | 0.67kg/pc |
| Nabla-N20 | 20mm | 108±2mm | 47±1mm | 65Mn | 42–46 HRC | 13–15 kN | Epoxy powder coating (50μm) | 0.84kg/pc |
| Nabla-N12-Ins | 12mm | 78±2mm | 31±1mm | 38Si7 + PA66 insulation layer | 40–44 HRC | 5–7 kN | Electrical insulation coating (45μm) | 0.28kg/pc |
Railway Nabla Clips - Application Compatibility & Performance Validation
| Nabla Clip Model | Matching Installation Accessories | Inspection Item | Acceptance Criterion | Inspection Tool |
|---|---|---|---|---|
| Nabla-M14 | M16 hex bolt (length 50mm) + flat washer (φ16×30×2mm) | Clamping force | 7-9 kN | Torque wrench (accuracy ±3%) |
| Nabla-M16 | M18 hex bolt (length 55mm) + spring washer (φ18×34×3mm) | Surface coating thickness | ≥12μm (Dacromet) | Magnetic thickness gauge |
| Nabla-M18 | M20 hex bolt (length 60mm) + lock washer (φ20×38×4mm) | Working height deviation | ±1mm | Vernier caliper (accuracy 0.02mm) |
| Nabla-M20 | M22 hex bolt (length 65mm) + insulation washer (φ22×42×5mm) | Insulation resistance (insulated type) | ≥10⁸ Ω | Insulation resistance tester |
| Nabla-Ins12 | M14 hex bolt (length 45mm) + PA66 insulation sleeve | Fatigue test (1.2×rated load) | No fracture after 3×10⁶ cycles | Fatigue testing machine |
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