In railway construction, the KPO railway fastener system is crucial, and its different specifications are adapted to different needs.
The KPO type gusset fastener system is a common form. For example, gussets of specifications such as KPO3, KPO6, and KPO9 are mostly made of Q235 and implement the DIN5906 standard. These gussets play a key role in fastening rails. Taking the KPO3 rail gusset as an example, it is widely used in some lines with relatively conventional requirements for track stability. It cooperates with other components to firmly fix the rails on the sleepers, effectively maintain the track gauge, and prevent the rails from moving vertically and horizontally during train operation.
From the perspective of the entire KPO rail fixing system, a complete system includes multiple components. Among them, wood screws have specifications such as M24×150mm, M24×160mm, and M24×180mm. The material is Grade5.6 35# steel, with tensile strength ≥500Mpa, yield strength ≥300Mpa, elongation ≥20%, and no cracks after cold bending at 90 degrees. They are mainly used for connection of specific parts. HS bolts have models such as HS26 and HS32, with a grade of 4.6, a material of Q235, and lengths of 55mm, 65mm, 75mm, 90mm, etc., to meet different installation space and force requirements. The base plate is suitable for railway UIC54, UIC60, and 50 kg and 60 kg rails and other specifications, providing basic support for the system. The insulator is made of reinforced nylon 66 (PA66), with a density of 1.3 - 1.45g/cm3, a tensile strength of ≥170Mpa and other performance parameters, which ensures the electrical insulation performance.
KPO railway fastener systems of different specifications can meet the diverse needs of railway lines, from ordinary lines to special lines such as specific heavy loads and high speeds, and can find suitable combinations, laying the foundation for safe and stable operation of railways.