At present, metal chains consisting of oval (rounded) links connected by a welding machine have gained wide popularity among a wide variety of fasteners. The reason for the demand is versatile appointment. They can be used both in domestic needs, and in industrial. Depending on the purpose, the chains are divided into economic and technical. As a rule, round link chains are used to move, hold, suspend loads, and also in load-gripping mechanisms as separate elements.
Steel chains are used on construction sites, in warehouses, industrial shops, transport organizations. One way to use chains is to hook suspensions of large hoisting machines.
The shape of the link metal chains are divided into:
Short link chain is a popular type of rigging used for stretching. According to the requirements of the International Standard DIN 766 (analogue 5685A), it is produced calibrated and non-calibrated. Such a chain is made from bars of alloyed, carbon, high alloy steels of various diameters and has a galvanic coating in the form of a zinc layer.
The size of the chain is determined by the caliber of the link (the diameter of the cross section of the rod). Chain links differ from each other in length, width and caliber (diameter).
The short-link chain has a shortened link, so it is designed for heavy loads and is considered more reliable and durable. But to lift the load, it is not recommended to use it. It is delivered in bays that are wound on plastic spools from 10 meters to 60 in length. The length in the bay depends on the diameter of the link.
Short link chain. Scopes of application:
- engineering;
- shipbuilding;
- automotive industry;
- warehouse technology;
- Agriculture;
- construction sector.
When choosing a specific steel chain, you need to know the following characteristics:
- breaking load - the maximum load that a short-chain metal chain can withstand until it breaks during a tensile test;
- workload - the largest mass that can be suspended on a circuit in the conditions of its operation;
- chain pitch - the internal length of the link in the widest part.
Short link chain. Mounting method
The chain is installed using auxiliary lifting elements: carbines, lanyards, swivels, chain connectors and other connections.
The short-link welded chain has a wider range of uses - from light manual hoists to heavy lifting cranes. Links by butt contact welding are made in one joint. After manufacturing, the circuit is tested for weld inspection and test load. It works great for stretching and has a small tensile coefficient. The chain design allows you to freely adjust the length and has a relative degree of freedom limited to just one link, as well as create a loop using the "link to link" method.