Name: China SKL Clip To Fasten Steel Rails Manufacturers Suppliers Factory - Gnee Steel
Brand: GNEE
SKU: 296436195

SKL Clip To Fasten Steel Rails

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

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Rail SKL CLIP Fastening System

The SKL Clip family represents the engineering response to escalating demands in modern rail transport. Each iteration-from SKL 12 through SKL 24-scales material and geometry to match traffic intensity: thicker wire for heavier loads, optimized curvature for greater deflection, enhanced metallurgy for extended fatigue life

Technical Specifications:

Parameter	SKL 12	SKL 14	SKL 21	SKL 24
Wire Diameter	12 mm	14 mm	21 mm	24 mm
Toe Load Range	7–9 kN	9–11 kN	11–14 kN	14–18 kN
Material Grade	52SiCr5	52SiCr5	60Si2CrA	60Si2CrA
Fatigue Life	>3M cycles	>3M cycles	>5M cycles	>5M cycles
Primary Application	Light rail/Metro	Mixed traffic	High-speed	Heavy haul
Installation Method	Manual lever	Hydraulic	Hydraulic	Hydraulic
Weight per Piece	~0.8 kg	~1.1 kg	~2.3 kg	~3.1 kg

Installation & Maintenance Perspective:

Surface decarburization strictly controlled to <0.1mm depth to prevent fatigue crack initiation.
Inclusion purity monitored through ultrasonic testing to ensure material integrity at the microscopic level.
Grain refinement optimized for balanced strength (1,400–1,600 MPa tensile) and ductility across the entire cross-section.

Maintenance & Operational Perspective

Leg length ratio precisely calculated to maximize energy storage per millimeter of deflection.
Cross-sectional moment of inertia varies along the clip length for graduated stress distribution under load.
Contact surface geometry precisely matches rail foot radius for uniform pressure transfer without point loading.
Neutral axis positioning ensures complete elastic recovery after extreme load events up to 150% of design deflection.