Description
Technical Parameters
Maintenance Specifications & Inspection Standards
| Model No. | Routine Inspection Frequency | Key Inspection Items | Torque Requirement (N·m) | Replacement Thresholds | Maintenance Tools | Cleaning Methods | Service Life Extension Measures |
|---|---|---|---|---|---|---|---|
| SKL 1 | Monthly (Low-traffic lines) | Surface cracks, bolt tightness | 30-40 | Crack ≥0.3mm; Rust area ≥10% | Torque wrench, brush | Brush + neutral detergent | Regular oiling (quarterly) |
| SKL 2 | Bi-weekly (Freight trunk lines) | Clamping force, corrosion | 35-45 | Clamping force loss ≥20%; Bolt corrosion ≥15% | Torque wrench, clamping force tester | High-pressure water gun | Hot-dip galvanizing retreatment (every 5 years) |
| SKL 3 | Monthly (Urban rail) | Insulation pad integrity, clip deformation | 30-45 | Pad damage; Clip deformation ≥2mm | Torque wrench, insulation tester | Brush + compressed air | Replace insulation pads (every 3 years) |
| SKL 12 | Weekly (High-speed rail) | Fatigue wear, gauge deviation | 40-50 | Fatigue cycle ≥5 million; Gauge deviation >±1mm | Torque wrench, wear gauge | Ultrasonic cleaning | Regular elastic modulus testing (semi-annually) |
| SKL 14 | Bi-weekly (Mixed passenger-freight lines) | Bolt torque, clip elasticity | 250-300 | Torque deviation >±10%; Elastic attenuation ≥20% | Torque-controlled wrench, elasticity tester | Brush + detergent | Pre-assembled component replacement (on-demand) |
Scenario-Specific Application & Compatibility
| Model No. | Target Application | Applicable Rail Type | Compatible Sleeper Type | Key Application Requirement |
|---|---|---|---|---|
| SKL 3 | Urban subway/light rail | 50-60 kg/m | Composite, Concrete | Noise and vibration reduction |
| SKL 12 | High-speed railways | UIC 60, 60 kg/m | Concrete (Ballastless) | High-frequency dynamic load resistance |
| SKL 14 | Conventional passenger/freight railways | UIC 54/60 | Concrete (Pre-embedded) | Easy maintenance and emergency replacement |
| SKL 15 | Ballastless track plates | 60 kg/m, 115RE | Concrete (Pre-buried casing) | High-precision installation |
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