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What is type I elastic clip rail fastening system

What is type I elastic clip rail fastening system

Type I rail elastic clip (rail tension clamp) railway fastening system are used to connect 50, 60Kg/m steel rails with prestressed concrete sleepers, prestressed concrete wide sleepers, standard gauge railway lines with a straight line and a curve radius of not less than 300m, and the maximum height adjustment is 10mm.

Oct 11,2022

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[Railway knowledge and public works] Classification of rails

[Railway knowledge and public works] Classification of rails

Source: "Comprehensive Maintenance and Comprehensive Knowledge of Railway Infrastructure (Part 1)"

Jul 08,2022

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Types of Composite brake blocks

Types of Composite brake blocks

Composite organic brake blocks can be devided based on friction coefficients: LL - very low L - low K - high Kunshan Alex Railway Fastening Co.,Ltd could produce a large range of composite brake shoes/ brake blocks as customer's designs and requirements. Our brake shoes has been exported to different countries in South America, Asia, and Noth America. Just send us the detailed dimensions of the composite brake shoes, and speed of rail car, Qtys you need, we will make the rest for you.

Jun 30,2022

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ITALIAN CUSTOMER VISITED ALEX FOR TUNNEL BOLT ORDER

ITALIAN CUSTOMER VISITED ALEX FOR TUNNEL BOLT ORDER

At the beginning of July, we received Tunnel fastener customers from Italy.

May 11,2022

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The difference between light rail and subway

The difference between light rail and subway

Mar 16,2022

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Track spike, dog spike manufacturer

Track spike, dog spike manufacturer

 A dog spike is functionally equivalent to a cut spike and is also square in horizontal section and of similar dimensions , but has a pointed penetrating head, and the rail (or "plate holding") head has two lugs on either side (which aid spike removal) giving the impression of a dog's head.                                                                                                      

Mar 19,2021

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Railroad aluminum spiral vortok, screw spike aluminum spiral manufacturers

Railroad aluminum spiral vortok, screw spike aluminum spiral manufacturers

       A. Overview of the aluminum spring filling parts        In the wooden sleeper railway lines ,due to the vibration of the trains' running and a long time wind and sunshine and other reasons, the original screw spikes and wooden sleeper fasteners had loosened, If just be strong tightened ,the screw spikes may be "slippery teeth", a slight phenomenon may make the original rail gauge change, resulting in train shaking slow down, the friction between the wheels and rails increased, and their lives being reduced; In even more serious cases, it will lead to the derailment of the train in motion.          The most effective way is to replace the original wooden sleepers and fasteners, and change to cement sleepers or use the integral casting track bed. But the costs is huge, and need a lot of time.        The original method is to replace the screw spike and add anchor agent into the original screw hole , but this way still costs a lot of money and labor.  After a long period of practice, it has proved that the use of aluminum spiral vortok into the original screw hole can re-enforce the screw spikes and wooden sleepers with each other. And the replacement work is simple, saves both time and cost. 　　B. The advantages of aluminum spiral vortok   　　Aluminum spiral vortok is the internationally recognized and preferred repairing method when the original screw hole is loosen after regular use of wooden sleeper screws. 　　It's advantages are: 　　1, No need too much time on installation, time is controlled within 1 minute. 　　2, Can restore 90% of the original strength and screw torque. 　　3, No need to remove the existing rails and fasteners during installation. 　　4, Not affected by climate or environmental conditions. 　　5, Existing screw spikes and fasteners can be reused. 　　More than 50 million sets have proven to be installed worldwide, and comprehensive tests conducted by German railroads and French state railroads have shown that they are a long-term, low-cost solution to the loosening of screw spikes for wooden sleepers over long periods of time. 　　C. Aluminum spiral vortok production quality assurance 　　Kunshan Alex pays great attention to quality control and management in the production of aluminum spiral vortok. Our production processes are fully according to ISO9001-2008 quality system, and we have also obtained the production license of railroad products in China. We have professional testing equipment to ensure the quality of all our spiral vortok to meet our customers' requirements. 　　We have strict quality control systems for suppliers: 1. Strictly inspection and testing of raw materials 2. Regularly organize quality control coordination meetings with semi-product suppliers to provide technical support. 3. Both sampling and batch testing will be taken while producing to make sure products 100% qualified before shipment.   　　D. Why choose us 01  We are a professional ,manufacturer of railway fasteners, include aluminum spiral vortok, can meet your customized requirements in details. 02  In our workshop and testing room,warehouse,we do every step from purchasing material to shipment all by our effective team  so our prices are the most competitive under same quality. 03  Our lead time can be adjust to match your different schedule of different products. Normally 20-30 days is available in producing, inspection, and packing. 04  We care about the safety of using our products, with all our workers and technicians working together, it is guaranteed that our railway products reach the international standards, such as AREMA,EN,GB, BS, UIC, DIN, JIS,etc. 　　As a manufacturing and trading enterprise in China's railroad equipment and railway accessories industry, Kunshan Alex Railway Fastening Co., Ltd. also supplies rail fastener systems, screw spikes, dog spikes, track bolts, tunnel bolts, anchor bolts, T-bolts, fish bolts, washers, fasteners,RN rail clip,Nabla rail clip, elastic rail clips, crane rail clips, fish plates, iron tie plates, rail chair, rail anti-creeper, rail shoulder, nylon rail insulator, nylon screw insert, plastic screw dowel, rubber mat, plastic mat, steel rail, turnout, steel sleeper, locomotive brake shoe, friction wedge, boidge, brake beam, etc.        We want to assist customers to maintain a competitive advantage in the construction and maintenance of railways, to improve customer service efficiency.  

Mar 19,2021

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Double coil spring washers, lock washer manufacturer

Double coil spring washers, lock washer manufacturer

　   Washer (flat washer, lock washer ,or called single coil spring washer,  double lock washer,or called double coiled elastic ring; multi-coil spring washer, or called triple elastic ring) 　　A, Washer overview 　　A washer is a thin plate (typically disk-shaped, but sometimes square) with a hole (typically in the middle) that is normally used to distribute the load of a threaded fastener, such as a bolt or nut. Other uses are as a spacer, spring (Belleville washer, wave washer), wear pad, preload indicating device, locking device, and to reduce vibration (rubber washer). 　　B, Washer types        Washers are divided into: I. Plain washer (or "flat washer") flat washers - C level, large washers - A and C level, extra large washers - C level, small washers - A level, flat washers - A level, flat washers - chamfered type - A level, II. Other type washers: steel structure with high strength washers, spherical washers, tapered washers, I-beam with square sloped washers, channel with square sloped washers, standard spring washers, light spring washers, heavy spring washers, inner tooth lock washers, inner serrated lock washers, outer tooth lock washers, outer serrated lock washers, single ear stop washers, double ear stop washers, outer tongue stop washers, round nuts with stop washers. 　　C, Commonly used washers' usage and technical parameters 　　I, Flat washers are generally used in the connection of a soft texture, a hard more brittle, its main role is to increase the contact area, disperse the pressure to prevent the soft texture of the crushed. The basic role of the spring washer is to give a force to the nut after tightening the nut, increasing the friction between the nut and the bolt. Material 65Mn (spring steel), heat treatment hardness of HRC44 ~ 51HRC, by surface oxidation treatment. 　　II, Loosening washer is a washer to prevent the bolt from loosening. Anti-loosening washer works very simply. It consists of two pieces of washers. The outer side is with radial convex surface, and the inner side of the beveled tooth surface. When assembled, the inner beveled tooth surface relative to each other, the outer radial convex surface and the two ends of the contact surface into a bite state, when the connection is subject to vibration, and make the bolt loose tendency, only allow the two washers inner beveled tooth surface relative to the wrong movement, resulting in lifting tension, so as to achieve 100% locking. 　　Spring washer ,also called the spring lock washer. It is available in stainless steel and carbon steel, carbon steel is also known as iron. Generally used sizes are M3,M4,M5,M6,M8,M10.M12,M14,M16, which are more commonly used. 　　III, Spring washer used to prevent the nut from loosening under the nut. In the mechanical design, production to prevent nuts (or bolts) automatically back loose methods are: padded spring washers 　　IV. Washer production quality assurance 　　The production of washers of Alex Kunshan pays great attention to quality control and management. Our washer production is fully controlled according to ISO9001-2008 quality system, and we have also obtained China's railroad products production license. We have professional testing equipment to ensure the quality of all our washer products to meet our customers' requirements. 　　Kunshan Alex Railway Fastening Co., Ltd. is an ISO 9001/2008 certified company. All processes are in accordance with the requirements of ISO quality management system, from quality control of suppliers to finished products, we operate according to standard procedures, and we have strict quality control systems for our suppliers:. 　　1、Strictly inspection and testing of raw materials:             For the inspection and testing of raw materials, we require our suppliers to provide production lot numbers, chemical composition, mechanical properties and other testing indicators. 　　2、Our quality control inspectors take sample sampling and batch testing in the testing process and provide material certificates of raw materials for control. 　　3、According to the different requirements of the products, we make the corresponding physical and chemical tests and inspections. If the results do not meet our requirements, products will be rejected, only if the material meets our standards can be approved. 　　4、For the production of semi-finished products and their outsourcing manufacturers, we often organize quality control coordination meetings and provide technical support and guidance. We ensure qualified products are delivered to our customers before shipment. 　　D. Why choose us   01  Your one stop railway fasteners supplier. With over 25 catagories and 500 items, we manufacture railway fasteners and rail car components, can meet your customized requirements in details. 02  Reasonable and competitive prices without sacrificing quality. We do every step from purchasing material to shipment all by our effective team  so our prices are the most competit

Mar 19,2021

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