SKL Rail Fastening System
The SKL rail fastening system is a bolted elastic rail fastening solution designed to provide reliable rail clamping, lateral restraint, electrical insulation, and vibration control for modern railway tracks. It is widely used on high-speed railway, conventional mixed-traffic, heavy-haul freight, and urban transit lines, with configurations suitable for both ballasted and slab track applications.
The system typically consists of SKL spring tension clamps, screw spikes, plastic dowels, angled guide plates, and resilient rail pads. SKL clip variants such as SKL 12, SKL 14, and SKL 21 are engineered to maintain consistent rail clamping and help resist longitudinal rail movement, while the fastening geometry provides effective rail lateral restraint and protection against rail roll-over.
components of sKL Rail fasteners system
| Item | Component | Types | Photo |
|---|---|---|---|
| 1 | Rail Clip |  |
SKL1, SKL3, SKL14, SKL21 |
| 2 | Screw Spike |  |
Ss25, Ss35, DHS35, Ss8 |
| 3 | Rail Dowel |  |
Sdu9, Sdu25, Sdue S3 |
| 4 | Angle Plate |  |
Wfp14k, Wfp21k |
| 5 | Rail Pad |  |
Zw600, Zw700 |
For railway infrastructure projects, the SKL fastening system offers elastic rail fastening, reliable gauge retention, electrical insulation, vibration and impact attenuation, and track gauge adjustment capability. Its bolted design also supports efficient assembly and maintenance, making it suitable for demanding railway operating conditions.
GNEE RAIL supplies SKL rail fastening system components and complete fastening solutions for railway construction, renewal, and maintenance projects. Depending on project requirements, we can provide different SKL clip configurations, rail fastening components, technical specifications, and customized supply solutions.
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SKL Rail Fastening System Structural Features
The SKL rail fastening system uses a modular structure that combines elastic rail clamping, lateral restraint, vibration control, electrical insulation, and efficient installation.
The SKL tension clamp, including SKL 1, SKL 12, SKL 14, and SKL 21, provides reliable elastic clamping and lateral rail restraint under dynamic loads. Sleeper screws and plastic dowels, such as Ss25, Ss35, DHS35, Sdu9, and Sdu25, secure the fastening assembly to concrete sleepers.
The angled guide plate, such as Wfp14k, transfers lateral forces and supports track gauge adjustment, while the elastic rail pad provides vibration damping, impact absorption, electrical insulation, and controlled track stiffness. SKL components can also be pre-assembled in a parked position for faster on-site rail installation.
| Parameter | Specification |
| Clamp Models | SKL 1, SKL 12, SKL 14, SKL 21 |
| Track Type | Ballasted & Slab Track |
| Gauge Adjustment | Available by guide plate selection |
| Applications | High-Speed, Heavy-Haul, Mainline & Metro |
FAQ
- What components make up a standard SKL rail fastening system?
A standard SKL rail fastening system consists of SKL tension clamps, sleeper screws or screw spikes, plastic dowels, angled guide plates, elastic rail pads, and washers. Common models include SKL 1, SKL 12, SKL 14, and SKL 21.
- What are the key advantages of the SKL tension clamp?
The SKL tension clamp provides reliable elastic clamping, lateral rail restraint, longitudinal resistance, and rail tilt protection, while its bolted design allows efficient installation and maintenance.
- Which rail profiles and standards are compatible with SKL?
SKL fastening systems can be configured for UIC54, UIC60, 115RE, 136RE, BS113A, JIS, and other rail profiles.
- Where is the SKL rail fastening system used?
SKL systems are used for high-speed railway, conventional railway, heavy-haul freight, metro, and urban rail, on both ballasted and slab tracks.
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