SKL Fasteners System is a resilient, screwed-direct fastening for concrete sleepers. Simple, reliable and safe,it is proven solution for ballasted track in many countries.
The rail seat assembly is typically made up of two tension clamps (SKL clips) on top of angled guide plates on each side of the rail. The guide plates are located in recesses on the concrete surface,securing the rail horizontally and transferring lateral loading to the sleeper. A pad under the rail provides layer to attenuate impact and electrical resistance.Everything is held down with screws in concrete dowel inserts.
Custom configurations are possible, for example for dual gauge and turnout sleepers. Theft-resistant screw heads are also available.
TECHNICAL FEATURES
- Gauge adjustment
Changing the size of the angled guide plates enables the rail to be moved laterally in the rail seat to achieve a wider or narrower gauge as required.
- Captive fastening
The fastening can be pre-assembled on sleepers in the factory and transported as a complete unit. Once on site,the SKL clips simply need to be loosened and moved from parked position to working position after the rail has been threaded, then fully torqued up.
- Removable dowels
Removable dowels are available as an upgraded specification, which can be replaced if they become damaged as a result of high-frequency use over time.
- Clamping force
By simply reducing or increasing the installation torque of the screw within limits, the clamping force can be varied.
- Track stiffness
By changing the rail pad, assembly stiffness can be modified between 50kN/mm and 500kN/mm.
- Overturning stop
The clip's central loop acts as an integrated safety mechanism that will only make contact with the rail when the clip arms are overloaded.
COMPONENTS
1. SKL clip
2. Angled guide plate
3. Rail pad
4. Screw with washer
5. Concrete dowel insert
We supply E type rail fastening, W14 rail fastening systems, rail clips to metro, tramway fastenings, crane rail clips, track bolts and joint bar for rail connection, screw spikes, tie plates and concrete rings connection bolts for tunnels. They are mainly according to standards of AREMA, IFI, ASTM, UIC and other specifications from clients.
We supply W rail fastening systems, spring blade fastening systems, KP fastening system, metro rail fastenings,fish plates and fish plate bolts, sleeper screws, lock spikes, spear bolts for tunnels etc. They are manufactured to standard of UIC, NF ,DIN, BS and other specifications requested by clients.