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Product Introduction
The SKL fastener system is a core connection component used to maintain the stability of rails in railway track engineering. It consists of spring bars, rail pads, gauge baffles and other components. It tightly combines rails and sleepers through mechanical locking, effectively suppressing the displacement and deformation of rails under train loads. The system uses high-strength spring steel to manufacture spring bars through precision cold bending and forming processes, and the surface is treated with Dacromet coating, which has excellent fatigue resistance and corrosion resistance; the rail pad is made of high-elastic rubber and nylon composite material, which has both buffering and vibration reduction and insulation functions.
SKL1 is a basic model suitable for the foundation laying of rural railway branches; SKL2 improves the fastening force by improving the curvature and clamping angle of the spring bar, and is often used in regional economic trunk lines; SKL3 is equipped with a double-layer elastic pad and a double spring bar structure, which can achieve 12dB noise reduction in urban subway sections passing through residential areas; SKL12 optimizes mechanical parameters based on the high-frequency vibration characteristics of high-speed rail operation; SKL13 reinforced type is designed for heavy-duty railways and can withstand continuous rolling of 40 tons axle load; SKL14 adopts a split quick-disassembly structure, which improves maintenance efficiency by 60%; SKL15 achieves millimeter-level installation accuracy through the precise matching of the embedded metal sleeve and the ballastless track plate.
60Si2CrA: It is a commonly used spring steel material. It has high tensile strength, yield strength and good toughness, and can withstand large loads without deformation. At the same time, it has good fatigue performance. Under the long-term repeated load of the train, it can maintain stable elasticity and buckling pressure, extending the service life of the fastener.
55Si2Mn: It is also a spring steel with high elastic limit and fatigue strength. It can maintain good elasticity in long-term use and ensure the buckling effect of the fastener on the rail. Compared with 60Si2CrA, the cost of 55Si2Mn may be relatively low, and it may be given priority in some railway projects that are more sensitive to cost.
Specifications for ONE unit of SKL Clip rail fastening system
Product Application
As a comprehensive service provider in the field of international trade of railway connectors, GNEE RAIL is committed to providing customers with a full range of procurement solutions. The product line fully covers the fasteners required for all aspects of railway construction, and all products comply with international standards such as UIC and EN. We have innovatively established a digital trade platform to achieve full-process online services from inquiry to delivery. Equipped with a multilingual foreign trade team, we provide professional services in 12 languages. In terms of quality control, we implement a triple guarantee system of "factory self-inspection + on-site inspection + third-party testing".
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