The Vossloh SKL-12 fasteners are ballastless railroad fasteners and are separate fasteners for sleeper track panels without concrete shoulders. Its main structural features are as follows:
- Separate screw holes are respectively arranged at both ends of the ribbed substrate, and are connected with the sleeper/track plate by ballast bolts.
- A T-bolt insertion seat and a rail shoulder are provided on the ribbed substrate, and the elastic rail clip is fastened by tightening the nut of the T-bolt.
- Horizontal lateral adjustments are made using eccentric tapers of different sizes.
- The height of the steel rail can be adjusted by inserting the heightening rail pad.
Specifications of SKL rail fastening system
| SKL tension clip | Ss35 screw spike | Flat washer | Plastic dowel | Guide plate | Rail pad | |
|---|---|---|---|---|---|---|
| Pieces required | 2 | 2 | 2 | 2 | 2 | 1 |
| Material | 60Si2CrA, 60Si2CrA, 38Si7 | Grade 4.6: Q235; Grade 5.6: 35# Grade 8.8: 45# | Q235 | HDPE, Reinforced Nylon 66 (PA66) | Reinforced Nylon 66 (PA66) | EVA, or rubber |
| Size | skl1,skl3,skl12,skl14 | M24×150mm | Uls7 | For different sizes of screw spike | UIC54, UIC60, 50kg rail, 60kg rail, and other sizes as ordered | |
| NOTE | Hardness: 42-47HRC 5 millions cycles without breaking. Standard: DIN17221, GB/T1222 | Standard: ISO898-1, UIC864-1 and NF F500-50 | Standard: EN10025, EN10139 | To insert into concrete sleeper | Customized products available. | |
