Name: Railway Fasteners Steel Rail SKL Clips
Brand: GNEE
SKU: 282995891

Railway Fasteners Steel Rail SKL Clips

Railway Clip is used to fasten the rails to the underlying base plate together with the concrete sleeper. A variety of different types of heavy-duty clips are used to fasten the rails to the underlying baseplate or Sleeper, one common being the E Clip, which is shaped like a stubby paperclip. Another one is the SKL Tension Clamp, which is also the most widely used type all over the world. Others like KPO Clamp and Nabla Clip, also used in different situations.

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Description

Technical Parameters

Railway SKL Clips

Model	Diameter	Material	Hardness	Clamping Force	Surface Treatment	Applicable Extreme Scene	Anti-Corrosion Grade
SKL 12-Sand	φ12mm	50CrVA	40–45 HRC	6–9 kN	Hot-dip galvanizing (≥90μm)	Desert Sandstorm Area	C4 (ISO 12944)
SKL 14-Coast	φ14mm	60Si2MnA	43–48 HRC	10–14 kN	Dacromet (≥12μm) + Zinc Plating	Coastal Salt-Fog Area	C5-M (ISO 12944)
SKL 15-Cold	φ16mm	55SiMnVB	45–50 HRC	18–25 kN	Dacromet + Sealant (≥15μm)	-40℃ Cold Plateau Area	C4 (ISO 12944)
SKL 20-HS350	φ15mm	60Si2CrVA	46–52 HRC	15–20 kN	Ceramic Coating (≥20μm)	350km/h HSR Vibration Area	C4 (ISO 12944)
SKL 11-Tunnel	φ11mm	60Si2MnA	39–44 HRC	5–8 kN	Epoxy Coating (≥60μm)	Humid Metro Tunnel	C4 (ISO 12944)

Practical Maintenance & Rapid Inspection Checklist

Inspection Stage	Key Item	Test Method	Acceptance Criterion	Sampling/Execution Rule	Tool/Reference
Incoming Check	Rapid Material Verification	Portable X-Ray Fluorescence (XRF) Tester	C: 0.56–0.64% (60Si2MnA); Alloy Elements Deviation ≤±0.1%	5 pcs/batch	Portable XRF Analyzer
On-Site Rapid Test	Crack Detection	Magnetic Particle Tester (Handheld)	No Surface/Subsurface Cracks (≥0.2mm)	10 pcs/100m track	Handheld Magnetic Particle Tester
Reusability Evaluation	Disassembly & Reinstallation Test	Torque Wrench + Force Gauge	No Deformation After 5 Disassembly Cycles; Clamping Force Retention ≥90%	100% of Dismantled Clips	Precision Torque Wrench; Digital Force Gauge
Extreme Environment Test	Sand Erosion Resistance	Sand Blasting Test Chamber	Coating Loss ≤5% After 200h (50m/s Sand Speed)	2 pcs/batch	Sand Erosion Test Chamber
Batch Quality Audit	Elasticity Recovery	Compression-Release Test Machine	Elasticity Recovery Rate ≥96% (1000 Cycles, 80% Max Force)	2% of Batch (Min. 3 Pcs)	Servo Elasticity Test Machine

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Railway Fasteners Steel Rail SKL Clips

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