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The Vossloh SKL 30 rail clip—also globally designated as the SKL 30 tension clamp or elastic W-clip—is an elite, heavy-duty fastening component engineered for full structural compatibility with designated configurations of the global Vossloh SKL rail fastening system.
Specially developed as the core clamping element for the celebrated Vossloh System W 30 and the DFF 30 HH direct fixation system, the SKL 30 is built to withstand extreme environmental challenges, tight curve radii, and massive axle loads up to 72 metric tons. It is highly favored for heavy-haul freight tracks, specialized ballastless container crane lines, and CIS region transit applications.
Vossloh SKL 30 System Compatibility & Assembly Breakdown
To deliver maximum longitudinal rail creep resistance, tilting protection, and noise reduction under heavy-haul fatigue, the SKL 30 operates as a critical link in an integrated track layout. It interfaces seamlessly with the following system components:
1. Heavy-Haul Concrete Sleepers & Slab Tracks
The SKL30 clip is optimized for both ballasted concrete sleeper tracks and specialized ballastless concrete slab track setups.
2. Angled Guide Plates & Inclined Plates
The system incorporates heavy-duty composite angled guide plates. For uninclined concrete sleepers, the setup frequently integrates specialized inclined baseplates. These components stabilize the track frame, sustain structural gauge channel dimensions, and transfer immense lateral wheel forces safely into the sleeper.
3. High-Tensile Screw Spikes & Dowels
To prevent loosening under massive vibration, the SKL 30 tension clamp is secured directly using high-tensile sleeper screw spikes driven into heavy-duty plastic dowels / engineered inserts embedded into the concrete base.
4. Durable Elastomer Rail Pads (TPU & cellentic)
The SKL 30 operates alongside advanced microcellular elastomer rail pads These pads maintain high elastic properties across a broad temperature range (-60°C to +50°C), reducing infrastructure degradation in harsh climates like deserts or frozen tundra.
5. Supported Steel Rail Sections
The clip profile accommodates standard global heavy rail sections, including standard UIC60, 60E1, 136RE, 50kg, and 60kg rail profiles.
Technical Specifications of SKL30 Tension Clamps
Every high-performance SKL 30 rail clip is manufactured to rigorous global engineering codes (such as DIN17221, EN13481-5, or GB/T1222) to guarantee optimal performance under intense cyclic flexing.
Sourcing Vossloh-Compatible SKL30 Clips in China
Heavy-haul freight railroads and mining transit lines face rugged field conditions that demand zero-tolerance steel durability.
As a premier railway track components manufacturer, Signum Rail Fasteners China manufactures top-tier SKL30 clips and integrated assembly items that provide 100% geometric and operational compatibility with original Vossloh rail fastening systems. We offer comprehensive OEM customization based on client technical drawings, along with advanced protective anti-corrosion surface coatings—including plain oiled, oxygen black oxide, zinc plating, or multi-layer zinc flake Dacromet coating designed to combat extreme humidity or chemical exposure.
Contact Signum Rail Fasteners China today to receive a fast, factory-direct quotation, custom drawing blueprints, or verified metallurgical material test certifications for your tracking infrastructure!
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