In the huge system of railway tracks, both E-type rail fastener system and Nabla rail fastener system are important parts to ensure the stable operation of the track, but there are obvious differences between the two in many aspects.
Different structural designs: The E-type rail fastener system uses the unique "E"-shaped spring clip as the core component. One side of the spring clip is open. When installed, it is embedded in the embedded iron seat slot from the side. It uses its own elastic deformation to fasten the rails and sleepers, and cooperates with insulating gauge blocks, rubber pads, embedded iron seats and other components to form a complete system. The key component of the Nabla rail fastener system is the Nabla spring clip, which has a unique shape and buckling method. It is matched with insulators, double-headed screw spikes, special spring washers, hexagonal nuts and flat washers. The components work together to stabilize the rails on the sleepers.
Different mechanical properties: The buckle pressure of the E-type spring clip varies according to different models. For example, the buckle pressure of the E2009 model is strong, up to 13-18kN, which can well cope with the huge force generated by the operation of trains in high-speed or heavy-load railways; the buckle pressure of the E1809 is generally between 10-15kN, which is more suitable for ordinary trunk railways. In terms of elastic design, it has also been optimized for different application scenarios. When used in urban rail transit, its elasticity can effectively absorb train vibration and reduce noise. The Nabla spring clip of the Nabla railway fastener system is designed to provide continuous and stable buckle pressure to maintain the high accuracy of the track geometry. It performs well in scenarios such as high-speed railways that have extremely strict requirements on track stability and can effectively prevent rail displacement.
Different application scenarios: The E-type railway fastener system has a wide range of applicability with its rich specifications and models. On high-speed railways, it can withstand the strong impact caused by high-speed driving; on heavy-load railways, it can rely on strong buckling pressure to adapt to large axle-load transportation; on ordinary lines, it can meet daily operation needs with economical and reliable performance; in urban rail transit, it can also cooperate with other components to reduce shock and noise; on special terrain railways such as mountainous areas, by adjusting component parameters, the restraint capacity of the rails can be enhanced. Nabla railway fastener system is commonly used in international railway projects, especially in high-speed railway construction with strict standards for track stability and fastener system elasticity and durability. It can give full play to its advantages of stable buckling and good adaptability to complex working conditions.