Carbon SKL Clips

Carbon 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

Rail skl Clip Fastening System

SKL Rail Clip | Glossary | Tension Clamp

The Railway SKL Clip is a high-tensile elastic fastener used for securing rails to concrete sleepers in modern track systems. Manufactured from chromium-alloyed spring steel, its patented helical leg design converts rotational force into precise clamping pressure. This clip provides excellent vibration damping and thermal movement accommodation. It is the preferred choice for high-speed, metro, and heavy-haul railways.

Technical Specifications:

Parameter Specification
Product Designation Railway SKL Clip – Torsional Spring Fastener
Material Grade 51CrV4 / 60Si2CrVA / EN 10089
Wire Diameter 14.5 mm – 16.0 mm standard range
Surface Finish Zinc flake / Geomet / Delta-Protekt
Clamping Force 12 – 18 kN per clip nominal
Elastic Travel 10 – 14 mm working range
Rotation Requirement 110° – 135° from free position
Fatigue Limit ≥ 6 million cycles without cracking
Elastic Rail Clamp

Installation & Maintenance Perspective:

  • Converts rotational torque into linear clamping force through helical design.
  • Provides consistent spring rate across entire deflection range.
  • Returns to original shape after load removal without permanent set.
  • Absorbs dynamic impacts protecting sleepers from fatigue damage.
  • Maintains force stability through millions of loading cycles.

 

Maintenance & Operational Perspective

  • Requires calibrated torque tools for precise tension application.
  • Achieves correct force when rotated to specified angle mark.
  • Allows torque verification immediately after installation.
  • Prevents over-tensioning through defined rotation limits.
  • Enables automated installation with programmable equipment.
Railroad Railway Steel Rails SKL Clips
Gnee Professional supplier

 

 

 

 

 

 

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