Railway SKL 15 Clips

SKL15 spring clip is a special ω-shaped elastic fastener in China's railway fastener system. It belongs to the third-generation spring clip technology and is mainly used for track fixing in subways, heavy-duty railways and other scenarios. In its name: "15": indicates that the diameter of the spring clip steel is 15mm

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Description

Technical Parameters

Parameter	Specification	Standard Reference
Nominal diameter	Φ15mm (±0.3mm)	TB/T 3395.2-2015
Free height	110±2mm	Q/CR 563-2017
Working deflection	12-15mm
Design toe load	10-12kN
Fatigue life	≥5 million cycles
Material hardness	HRC 41-47	GB/T 230.1

Product Line Overview

Model	Diameter (mm)	Toe Load (kN)	Fatigue Life	Key Applications
SKL12	Φ12±0.2	8-10	≥3M cycles	Light metro (50kg rail)
SKL15	Φ15±0.3	10-12	≥5M cycles	Standard metro (60kg rail)
SKL20	Φ20±0.5	12-15	≥8M cycles	Heavy-haul (75kg rail)