Name: China SKL Clip Of Railway Steel Rail Manufacturers Suppliers Factory - Gnee Steel
Brand: GNEE
SKU: 290277279

SKL Clip Of Railway Steel Rail

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.

Send Inquiry

Chat Now

Description

Technical Parameters

↵Rail skl clip Fastening System

The SKL Clip is a high-performance, single-piece elastic rail fastening system developed by the German company Schreck-Mieves (with "SKL" historically deriving from the company name). It is a hallmark of German engineering and a globally recognized component in modern railway infrastructure. Manufactured from round spring steel bar, it is formed into a distinct shape featuring two tension legs and a central arch.

Technical Specifications:

Feature	SKL Clip	Standard E-Clip (General Type)
Design Origin	Proprietary, engineered system (Schreck-Mieves)	Generic, widely adopted shape
Typical Clamping Force	Very High (e.g., 12-15 kN per clip)	Moderate to High (e.g., 9-12 kN)
Installation Method	Mandatory specialized tensioning tool	Can often be installed with simpler lever tools
System Integration	Integral: Requires specific SKL-compatible shoulders/insulators	More Adaptable: Can be used with various shoulder designs
Primary Application	Critical infrastructure: High-speed, heavy-haul, metro	Broad-range: Conventional mainlines, secondary lines, yards

Functional & Engineering Perspective

Optimized Spring Geometry: The specific curvature and cross-section of the tension legs are precision-engineered to deliver a near-constant clamping force over a defined deflection range, ensuring stability under varying loads.

High Initial Tension: Designed to provide a very high pre-installation clamping force, offering superior resistance against rail uplift and longitudinal creep, even under extreme dynamic loads.

Material Excellence: Utilizes micro-alloyed spring steel with a defined tensile strength (e.g., ~1600 MPa), undergoing controlled quenching and tempering for optimal elasticity and fatigue life.

Maintenance & Operational Perspective

Tool-Driven Installation: Requires specialized hydraulic or electric tools (e.g., SKL-tensioning tongs) for fast, uniform, and safe installation, ensuring the correct pre-tension is achieved consistently.
Visual Tension Verification: The final installed position of the clip leg relative to a gauge mark or the insulator shoulder provides a clear visual indication of correct pre-tension for inspectors.
High Durability & Low Relaxation: Exhibits minimal loss of clamping force over time due to its material quality and design, leading to very long maintenance intervals and high reliability.