The relationship between 80 grade lifting chain and high strength lifting chain

RELEASE TIME :

2020-07-01

Grade 80 lifting chain belongs to a kind of high strength lifting chain, are essential lifting devices when lifting heavy objects, are made of high quality alloy steel, manganese steel and other materials through medium frequency high temperature heat treatment, the whole process of various testing equipment is strictly controlled, the production process according to the lifting chain manufacturing standards: ISO3077, EN818-2, AS2321 production standard implementation, the chain to ensure 4 times the safety factor and 2.5 times the test load. 80 grade lifting chain surface after polishing, black, dip paint, hanging plastic, electroplating and other processing, can be used in acid, alkali, moisture and other harsh environment.

Lifting chain is one of the important lifting rigging in today's lifting operation, it is a variety of different specifications, and the length of the chain can be adjusted according to the different lifting weights and lifting height, which plays an important role in improving the working efficiency of the crane and expanding the working scope of the crane.

The standard of high strength lifting chain generally includes: non-standard lifting chain, national standard lifting chain, 80-level lifting chain, etc., in comparison, 80-level lifting chain is one of the better ones, and can even be regarded as the highest national standard lifting chain.

Class 80 lifting chain is better, but also has its use of life, its scrap standard can be judged from the following aspects:

First of all, the allowable wear value of the lifting chain shall not exceed 10% of the diameter of the ring chain rod or the thickness of the auxiliary tool.

Second, if the main ring is twisted more than 10 degrees from the main ring, the plane of the unbent ring, it should be discarded.

Third, when there is a crack, bending or twisting, ring hinge stuck or stagnant, the use of any parts of the lifting chain is prohibited, which cannot be eliminated.

Fourth, lifting chain and its single ring of permanent elongation, must not exceed 5% of the original length.

The use of 80 grade lifting chain, must be used after the standard inspection according to scrap. If you have any questions, you can consult Shandong Deyao Electromechanical Technology Co., LTD., which is one of the manufacturers of high strength mining ring chain designated by coal department and connecting ring. With advanced machinery and equipment and high quality products, the company has won the trust and support of customers at home and abroad. At present, the products sell well all over the country, and it has established long-term and effective cooperation with more than 30 countries and regions such as Canada, the United States, South Korea, and enjoys a high reputation in the industry.

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Add : Light of Civilization Industrial Park, Dawenkou, Daiyue District, Tai'an City, Shandong Province

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