Product Details
Product Description
SKL clips 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.
1. 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.
2. 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.
3. 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.
4. Clamping force
By simply reducing or increasing the installation torque of the screw within limits, the clamping force can be varied.
5. Track stiffness
By changing the rail pad, assembly stiffness can be modified between 50kN/mm and 500kN/mm.
6. 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.
Product Advantages
1. The gauge can be adjusted simply by swapping components. This removes the need for different sleepers when gauge widening or redemption is needed.
2. Captive fastening reduces handling and, as a result, the risk of losing components. Effcient installation and maintenance save time and money.
3. All components are replaceable (even the concrete dowel), which limits maintenance costs to the affected components rather than the whole sleeper.
4. The ability to vary clamping force means that longitudinal restraint can be changed where necessary for specififfc areas of the track.
5. Adjusting fastening stiffness allows overall track stiffness targets to be met, even when these change over time.
6. The overturning stop keeps the rail located securely and protects the clips from overstretching and ultimately failing.
Model | Diameter | Weight | Material |
SKL 1 | 13 | 0.48kg/pc | 60Si2CrA |
SKL 3 | 13 | 0.48kg/pc | 60Si2CrA |
SKL 12 | 13 | 0.53kg/pc | 38Si7 |
SKL 14 | 13 | 0.53kg/pc | 60Si2MnA |


Company Profile
Hengtairail Equipment Co., Ltd (hereinafter referred to as
“Hengtairail”) was established by Mr. Wei, in 1999. He was as a
vehicle engineer in the China Railway Chengdu Bureau. A
professional engineer team and high-efficiency sales team have been
built at present.
Hengtairail is certified and operating to the ISO9001:2015
management system. Products meet technical requirements China
Railway Test & Certification Centre (CRCC), Association of American
Railroads (AAR), International Union of Railways (UIC), etc.
Hengtairail is a global supplier of rail vehicle components &
systems. Including casting, forging, and machining products.
Specific products include:
· Wheelset: axle, wheel
· Bearing & axle box
· Spring & vibration control system: steel spring, rubber spring,
air spring, leveling valve, shock absorber, and other truck
components
· Coupler & draft gear device
· Braking system that meets UIC & AAR requirements
· Passenger train facilities & equipment: window, handrail, luggage
rack, seat, HVAC system, toilet, gangway, plug door, interior
products
· Locomotive parts
Based on the cooperation of many reliable manufacturers,
Hengtairail has lots of advantages, such as flexible delivery time
& payment terms, convenient after-sales service, etc. Under those
favorable conditions, clients’ procurement costs and risks can be
controlled effectively. It’s beneficial for clients to purchase
transnational.
After more than 20 years of development, relying on high-quality
products and professional services, Hengtairail establishes a
complete supply chain system and long-term good business
relationships with clients who come from more than 30 countries and
regions.
Safety is the forever theme of public transport. Fast and big
capacity of passengers is the particularities of rail transport.
That makes us have a higher requirement for safety. Therefore,
Hengtairail will continue to carry out the manufacturing process
and quality guarantee schedule strictly, offer excellent products
to meet clients' needs, and become a comprehensive supplier of rail
vehicle components with core competitiveness.