WJ-8 type fastener system is a kind of ballastless track fastener system developed to meet the technical requirements of passenger line, it is a special fastener system for laying all kinds of non-shoulderless track, which is optimized based on WJ-1 type and WJ-2 type ballastless track fastener system.
The WJ-8 elastic rail clip fastener system is suitable for passenger lines with a maximum axle speed of 350km/h and a CRTSII type ballless track with a shaft weight of 170KN (considering that the axle weight may increase by 10%).
Performance characteristics of WJ-8 railway fastening system
| No. | Item | Performance | ||||
| 1 | Suitable Rail type | Chinese 60kg/m steel rail | ||||
| 2 | Gauge | 1435mm | ||||
| 3 | Rail bottom slope | sleeper or track slab with 1:40 rail bottom slope | ||||
| 4 | Longitudinal resistance of rail | In general sections, the longitudinal resistance of each group of fastener rails is greater than 9 KN; in low resistance sections, the longitudinal resistance of each group of fastener rails is about 4 KN. | ||||
| 5 | System flexibility | The static stiffness of type A pad is 30~40kN/mm, which is suitable for 250km/h passenger dedicated line (taking into account freight); the stiffness of type B pad is 20~26kN/mm, which is suitable for 350km/h passenger dedicated line; the ratio of dynamic and static stiffness is not more than 2.0 | ||||
| 6 | Dynamic and static stiffness ratio | ≤1.5 | ||||
| 7 | Fatigue performance | The fastener system has no damage to all parts after 3 million load cycles, the gauge expansion is less than 6mm, and the buckling force change is ≤20%; the rail longitudinal resistance change is ≤20%; the joint static stiffness change is ≤25% | ||||
| 8 | Insulation resistance | The fastener system is tested in accordance with EN13146-5, and the insulation resistance between the two rails is greater than 3Ωkm, and it meets the requirements for the insulation resistance of the rail circuit. | ||||
| 9 | Harsh environmental conditions | The fastener system can be removed smoothly after the 300h salt spray test described in EN13146-5. | ||||
| 10 | Adjustment amount of rail left and right position | Adjustment amount of left and right position of single strand rail: -5~+5mm; | ||||
| Gauge adjustment amount: -10~+10mm, the adjustment level is 1mm | ||||||
| 11 | Adjustment amount of rail height | Adjustable amount of rail height: 30mm | ||||
| 12 | Buckle force and stroke | Commonly used elastic clips (W1 type): single elastic clip buckle pressure is greater than: 9kN, elastic range 14mm; small resistance elastic clip (X2 type); single elastic clip buckle pressure 6kN, elastic range 12mm | ||||
| 13 | Pull-out resistance of embedded dowel in sleeper | ≤60kN | ||||
As a professional rail fastener manufacturer, GNEE RAIL can guarantee the quality of all the railway products including E-clip railway fastening system. We have passed the certification of CRCC in China and ISO9001:2008 overseas. We also accept third party test from clients.Contact us for more product information.
