| Fastener type | WJ-7 fastener |
| Taxonomy | With iron pad (thickness 16mm) |
| Withstand lateral force | Mainly overcome by the friction under the iron pad |
| Connection with the foundation | Embedded plastic casing |
| Embedded member pull-out resistance | Not less than 100kN |
| Rail Clip | Types | W1 type | Type X2 |
| Buckle pressure | >9kN | 6kN |
| Strike | 14mm | 12mm |
| Fastening method | Bolt fastening |
| Tightening torque | About 120 Nm | About 80Nm |
| Rail longitudinal resistance | >9kN | 4 kN |
| Rail pad fastening torque | 300～350Nm |
| Elastic Rail Insulator | Setting | An elastic cushion layer (rubber pad or composite rubber pad) is arranged under the rail, and a cushion layer (insulation cushion pad) is arranged under the iron pad plate. |
| size | Class A | Class B |
| Under-rail rubber pad: 169×168×12 (composite thickness 13.2) | Rubber pad: 169 × 168 × 14 (composite thickness 15.2) |
| Insulation cushion plate: 486 × 204 × 5 |
| Under-arc cushion stiffness | 30～40kN/mm | 20~30kN/mm |
| Sub-layer cushion stiffness | >1000kN/mm |
| Rail height | High rail surface | Class A | Class B |
| 211 rubber pad 212.2 composite pad | 213 rubber pad 214.2 composite pad |
| Adjustment amount | 30mm |
| Adjustment method | The adjustment of 10mm and 20mm is achieved by inserting the heightening pad between the rail and the iron pad and between the iron pad and the foundation. The filling pad can be adjusted steplessly. |
| gauge | Adjustment amount | ±12mm |
| Adjustment method | This is achieved by moving an iron pad with a long round hole, without the need for spare parts. |
| Adjustment level | Continuous stepless adjustment |
| Rail joint treatment | General purpose |
| Applicable to ballastless track | No shoulder-free track structure |
| Drawing number and standard | Research Line 0603, Science and Technology Base [2007] 207 |
| Application condition | 250 km/h | 350 km/h passenger dedicated line |
