GNEE RAILWAY RAILWAY Steel (Tianjin) Co., Ltd. is one of the most reliable manufacturers and suppliers of 60si2mna 60si2cra 55si2mn skl elastic rail clips in China, also supports customized service with low price. Please feel free to buy cheap 60si2mna 60si2cra 55si2mn skl elastic rail clips made in China here from our factory.
Product Introduction
The SKL fastener system uses scientific mechanical structure design to firmly fix the rails on the sleepers, achieving uniform transmission of train loads to the track foundation. The system spring bars are made of 60Si2CrA spring steel, and the elastic limit reaches 1600MPa after quenching and tempering. Combined with the high-precision CNC-machined gauge baffle, the gauge error is controlled within ±1mm.
In actual applications, SKL1 is widely used in daily maintenance of ordinary railways due to its economical and practical characteristics; SKL2 is suitable for coal transportation lines by increasing the diameter of the spring bar and optimizing the curvature of the clamping surface; SKL3 uses honeycomb rubber pads and wavy spring bars to effectively reduce structure-borne sound in subway tunnels; SKL12 is specially developed for 350km/h high-speed railway lines to meet the stringent requirements of high-speed operation on track smoothness; SKL13 reinforced type is designed for heavy-load lines such as the Daqin Railway, with increased component thickness and bolt strength; SKL14 is equipped with an adjustable clamping device to facilitate dynamic adjustment of the line; SKL15 adopts an embedded installation method for the special structure of ballastless track to ensure long-term service stability.
60Si2MnA, 60Si2CrA and 55Si2Mn are all spring steel materials commonly used to manufacture SKL spring bars.
60Si2MnA: It belongs to medium carbon alloy spring steel.
Performance advantages: low alloy element content, higher hardenability than 60Si2Mn, higher toughness and plasticity, less decarburization tendency, good tempering stability, good hot working performance and low cost.
60Si2CrA: It is a special steel for medium carbon alloy springs, containing higher silicon and chromium elements.
Performance advantages: It has higher tensile strength and yield strength, excellent plasticity, and less overheat sensitivity and decarburization tendency during heat treatment.
55Si2Mn: It belongs to high strength spring steel.
Performance advantages: Its strength, elasticity and hardenability are slightly higher than 60Si2Mn, it has good toughness and fatigue resistance, and it can maintain good elasticity in long-term use, ensuring the clamping effect of the fastener on the rail.
Specifications for ONE unit of SKL Clip rail fastening system
| Item | SKL-1 rail clip | SKL-3 rail clip | SKL-12 rail clip | SKL-14 rail clip |
| Diameter | φ13 | φ13 | φ13 | φ13 |
| Weight | 0.48kg/pc | 0.48kg/pc | 0.53kg/pc | 0.53kg/pc |
| Material | 60Si2CrA | 60Si2CrA | 38Si7 | 60Si2MnA |
| Hardness | 42-47HRC | 42-47HRC | 42-47HRC | 42-47HRC |
| Surface | Plain Oiled, Oxygen Black, Zinc Plated, Hot Dip Galvanized, Dacro coating, Color Painting | |||
Product Packaging & Delivery
Airbag cushion layer + plywood box packaging: An inflatable airbag cushion layer is installed inside the plywood box, and the fasteners are placed in the middle of the airbag. The airbag is inflated by a manual air pump to expand and evenly wrap the fasteners, providing all-round cushioning protection. The box cover is connected to the box body through hinges and locked with metal buckles. The outside is reinforced with steel belts in the shape of a "#", which effectively copes with bumps and impacts during long-distance transportation and is suitable for the export of precision fasteners.
GNEE RAILWAY RAILWAY is a procurement center specializing in international trade of railway engineering fasteners, with a nationwide supplier network. The main products include various types of rail standard parts and special parts, and strictly implement the "five no's" principle of quality. A modern intelligent warehousing system has been established, and strategic cooperation has been established with major global logistics companies. Equipped with a professional foreign trade documentary team, a "one-to-one" full-service model is implemented. Innovative supply chain financial services have been developed to provide customers with flexible settlement solutions.
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