Name: China SKL Clip Railroad Fastening System Manufacturers Suppliers Factory - GNEE RAIL
Brand: GNEE
SKU: 295937307

SKL Clip Railroad Fastening System

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 E Clip Fastening System

The Railway SKL Clip (also known as a tension clamp) is a high-strength, omega-shaped (Ω) fastening component precision-forged from spring steel alloy, designed to secure rails to concrete sleepers in a screwed fastening system. Unlike push-in designs, the SKL clip is installed by tightening a screw or bolt that forces the clip's legs to compress against the rail foot, creating a powerful and adjustable elastic clamping force.

Technical Specifications:

Specification	Description
Product Type	Tension Clamp / SKL Rail Clip (Omega/Ω Type)
Common Models	SKL-1, SKL-3, SKL-12, SKL-14, SKL-15, SKL-21
Material Grades	60Si2MnA, 60Si2CrA, 38Si7, 55Si7 Spring Steel
Bar Diameter Range	12mm to 20mm (typical: 13mm-15mm for standard applications)
Fatigue Life	Minimum 5 million cycles without failure
Installation Method	Screw-Drive (Torque-Controlled) with captive components
Standards Compliance	UIC, DIN, AREMA, BS, RDSO

Installation & Maintenance Perspective:

Captive Pre-Assembly: All components (clip, guide plate, screw) remain captive during transport and installation, eliminating lost parts and speeding up on-site work .

Parked-to-Working Transition: Clips are shipped in a relaxed "parked" position and moved to the working position by simply tightening the screw after rail insertion .

Gauge Adjustment: Lateral rail position can be adjusted by changing the size of the angled guide plates, enabling gauge widening or redemption without new sleepers .

Maintenance & Operational Perspective

Variable Clamping Force: By modifying screw installation torque within specified limits, the longitudinal restraint (creep resistance) can be tuned for specific track zones .
Stiffness Customization: Rail pad selection allows stiffness adjustment from soft (vibration damping) to stiff (heavy haul), meeting diverse operational needs .
Replaceable Components: Every part, including the concrete dowel insert, is replaceable, limiting maintenance costs to affected components rather than entire sleepers .