The DJK5-1 railway fastening system plays a crucial role in railway track construction as an elastic separated fastening solution. It is widely used in ground sections of access lines, ballasted test tracks, and 50kg/m rail yards.
The system consists of multiple coordinated components. The fastening parts use standard railway spring clips, which come in two types: A and B. Type B is used at joints with No. 6 and 8 gauge pads, while Type A is used in other areas. The spring clips demonstrate excellent performance: Type A provides 8 kN of clamping force with 9 mm deflection, and Type B offers 9 kN of clamping force with 8 mm deflection. Both are made of high-quality materials to securely fasten the rail and prevent longitudinal and lateral displacement.
The DJK5-1 system also features superior gauge adjustment capability, with a range of +8 mm to -12 mm, achieved by replacing gauge plates of different specifications. This flexible adjustment meets the track's changing gauge requirements during laying and long-term use, ensuring precision and stability. The embedded nylon sleeves provide over 60 kN of anti-uplift resistance, creating an extremely secure connection between the fasteners and sleepers to withstand the forces generated by train operations. Beneath the rail and baseplate, a 10 mm thick rubber pad is installed, significantly enhancing the system's elasticity. This design effectively absorbs vibrations and impacts from high-speed trains, reducing damage to the track structure, extending its service life, and ensuring smooth train operation.
Additionally, the insulation components have a resistance exceeding 10^8 Ω, effectively preventing current leakage and ensuring proper track circuit operation while avoiding stray current interference with trackside equipment. The tightening torque ranges from 80 to 120 N·m, increasing to 120–150 N·m in small-radius sections, ensuring stable fastening performance under various conditions.
In summary, the DJK5-1 railway fastening system, with its scientifically designed structure and reliable performance, provides a solid foundation for safe and efficient railway operations, making it an indispensable component in railway construction and maintenance.
GNEE RAIL is a professional trading company focusing on the export of railway fasteners, committed to providing reliable rail connection products for global railway construction projects. The main products include a full range of railway fasteners such as various spring clip fastener systems, sleeper bolts, anti-loosening washers and insulating components, which are suitable for various application scenarios such as conventional railways, heavy-duty railways and urban rail transit.