Description of SKL Rail Clip
SKL Rail Clip is a spring clip fastener system developed by Vossloh in Germany. It is widely used in global railway networks and is particularly suitable for high-speed railways, heavy-duty railways and urban rail transit. Its core features are high elasticity, maintenance-free and long life design. We can make SKL Rail Clip with the same quality as Vossloh.
Functions of SKL Rail Clip
1. Excellent elastic performance
- Double-corrugated spring bar design improves elasticity by 30% compared with traditional fasteners
- Dynamic stiffness 45-55kN/mm, effectively absorbing wheel-rail impact
2. Maintenance-free design
- Self-locking structure prevents loosening
- Special anti-corrosion treatment (zinc-aluminum coating + sealing layer)
- Rubber component life ≥ 15 years
3. Accurate track gauge control
- Track gauge adjustment ±8mm (achieved by different thickness track gauge blocks)
- Track direction retention accuracy ±0.3mm
4. Excellent insulation performance
- System insulation resistance >10⁹Ω (under dry conditions)
- Meets the requirements of signal systems such as ATP and track circuits
Rail Clip Inspection process
Technical Specifications
Name |
SKL Rail Clip |
Type |
SKL1, SKL2, SKL3, SKL12, SKL14, SKL14R, SKL15, SKL21, SKL30, etc. Other types according to customer’s drawing |
Standard Reference |
BS970, DIN17221, GB/T1222, GB/T4357, GB/T4358,etc. |
Surface Treatment |
Oil Black,Static Coating,Dacromet,HDG,Upon customer requirement |
Material |
60Si2Mn,60Si2Cr,38Si7 |
Test Item |
1.Salt Spray Test(120h) 2.Fatigue Test≥5000000times; 3.Hardness:42-48; 4.Decarburization Layer≤0.2mm; 5.Clamping Force 6.Residual Deformation/KN<1.00mm |
Advantages
How to Find a Qualified Rail Fastener Manufacturer?
Please choose LTRF.
Why Choose LTRF?
- Strong Technical Expertise
LTRF boasts a dedicated R&D center. Moreover, it maintains long-term collaborations with major industry players such as China Railway, CRCC, and the Academy of Railway Sciences. In addition, it also partners with leading railway universities. As a result, LTRF has been able to develop various innovative fastening systems for both domestic and international markets. Notably, all these systems possess independent intellectual property rights. Indeed, to date, LTRF holds over 30 invention and utility model patents.

- Professional Manufacturing
LTRF always aims for the best. We carefully choose the materials we use and make sure every part is made with great care and skill. And we believe in doing things perfectly, so we keep coming up with new ideas and check the quality of our products very carefully to make sure they’re good.
We work fast to make sure you get your order on time. And we offer good service before and after you buy something. At LTRF, we also focus on what our customers need. We’re committed to making good products and providing great service in everything we do.


LTRF control the cost of each process, and the finance department updates the cost calculation regularly.
Furthermore, LTRF’s advanced testing equipment endows the company with comprehensive quality inspection capabilities for the entire fastener system. This meticulous quality-control measure is crucial for ensuring product reliability. Importantly, LTRF holds ISO and CRCC certification for railway products. These certifications not only demonstrate the company’s compliance with international and industry-specific standards but also enhance its credibility in the market.

