Name: China Rail Fastener Spring SKL Clip Manufacturers Suppliers Factory - GNEE RAIL
Brand: GNEE
SKU: 296492899

Rail Fastener Spring SKL Clip

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 Railway SKL Clip is a heavy-duty elastic rail fastener characterized by its omega-shaped (Ω) double-bend configuration, designed to deliver high clamping force through multi-stage spring deflection. Manufactured from micro-alloyed spring steel, it provides comprehensive rail restraint-vertical, lateral, and longitudinal-while accommodating thermal expansion and dynamic loading, making it the preferred choice for demanding railway applications worldwide.

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
Spring Deflection	8–10 mm	10–12 mm	12–14 mm	14–16 mm
Weight per Clip	~0.8 kg	~1.1 kg	~2.3 kg	~3.1 kg
Rail Profiles	Light rail	Mixed traffic	High-speed	Heavy haul
Insulator Required	Yes	Yes	Yes	Yes

Installation & Maintenance Perspective:

Omega-shaped geometry creates two independent spring systems within a single component for progressive force generation.
Symmetrical leg design ensures balanced clamping force distribution across both sides of the rail foot.
Optimized cross-section maximizes energy storage capacity while minimizing material usage.
Constant radius curves eliminate stress concentration points that could initiate fatigue cracks.

Maintenance & Operational Perspective

Requires pre-installed shoulders or baseplates on the sleeper for proper seating and force transmission.
Compatible with hydraulic installation tools that provide controlled insertion force.
May require intermediate insulators for electrical isolation in track circuit territory.
Demands clean rail seat surfaces free from debris for correct positioning and full engagement.