Configuration Table and Description of Fastener Components for Individual Sleeper
| No. | Item | Specification | Quantity/Pcs | Material | Description |
| 1 | Rail Clip | SFFST 30 | 4 | 38Si7/Other Hot-Rolled Spring Steel | Clamping Force：≥ 12.5kN |
| 2 | Screw Spike&Flat Washer | Ss35/DHS35&ULs7 | 4 | 35#&Q235 | ①Mechanical Properties:ISO 898-1 Grade 5.6；
②Cold Bending Property: A 90° cold bend shall be conducted without cracking. ③Fastening Procedure: The threaded portion must be lubricated during Rail Clip fastening. Alternatively, lubricant may be injected into the sleeve. |
| 3 | Rail Gauge Baffle | sffst 30k -12 HH | 4 | PA6+30%GF | ①It shall not be damaged after being subjected to a 60 kN compression test.
②Electrical resistance：＞ 107Ω。 |
| 4 | Rail Pad | Zw xx/175/y | 2 | EVA/TPU/TPEE | ①Shore D： 32～47；
②Static Stiffness：TPU/TPEE，160kN/㎜； ③Electrical resistance：≥108Ω。 |
| 5 | Nylon Dowel | sdu25 | 4 | PA6 | ①Tensile Performance: The component shall show no damage after being subjected to a 60 kN tensile test.
②During fastening, if the spike threads are not oiled, a small amount of lubricant must be injected into the dowel. |
Indicators of S30HH Fastening System
| Execution Standards | EN 13481-2 | Railway applications – Rail -Performance Indicators of fastening system concrete sleepers fastening system | ||||||
| No. | Items | Performance Indicators | Test Method | |||||
| 1 | Maximum axle load | 26t | 26t | 35t | / | |||
| 2 | Minimum curve radius | R150m | R400m | R150m | / | |||
| 3 | Speed | ≤ 250km/h | ＞ 250km/h | ≤ 160km/h | / | |||
| 4 | Longitudinal rail resistance | ≥ 9kN | ≥ 9kN | ≥ 9kN | EN 13146-1 | |||
| 5 | Torsional resistance | √ | EN 13146-2 | |||||
| 6 | Attenuation of impact loads | √ | EN 13146-3 | |||||
| 7 | System clamping force | ≥ 23kN | ≥ 23kN | ≥ 25kN | EN 13146-7 | |||
| 8 | System Fatigue Performance | Dual rail gauge | ≤ 6㎜ | EN 13146-4 | / | |||
| Resistance change rate | ≤ 20% | EN 13146-1 | ||||||
| Vertical stiffness | ≤ 25% | EN 13146-9 | ||||||
| Clamping force change rate | ≤ 20% | EN 13146-7 | ||||||
| 9 | Electrical resistance | ≥ 5kΩ | EN 13146-5 | |||||
| 10 | Effect of exposure to severe environmental conditions | Successful Dismantling | EN 13146-6 | |||||
| 11 | Proof load test for pull-out resistance | ≥ 60kN | EN 13146-10 | |||||
| 12 | Gauge adjustment range | ±10㎜ | ||||||
SAFE Rail Fastening System (Zhejiang) Co., Ltd. is a leading manufacturer of rail fastening systems, with a total investment exceeding 50 million RMB and a factory area of over 50,000 ㎡. Strategically located in Zhejiang Province—China’s manufacturing hub—we specialize in providing high-quality rail fastening solutions for global markets.
The company is situated in Zhejiang Province, the heart of China’s manufacturing sector. This strategic location enables efficient access to supply chains, logistics networks, and industrial resources, supporting timely delivery of high-quality products to domestic and international customers.
Our annual output of rail fastening systems reaches 5 million sets, meeting large-scale project demands.
We operate an automated 3D warehouse with a storage capacity of 30,000 tons, ensuring efficient inventory management and product storage.
Our specialized production lines and laboratories are equipped with over 100 sets of advanced international automation and testing equipment. This ensures that every product adheres to the highest industry standards.
We comply with international standards including ISO 9001 (quality management), ISO 14001 (environmental management), and ISO 45001 (occupational health and safety management).
