Handling the majority of directly associated with the use of special industrial products under the name sling. These elements for operations on the lifting/lowering various items manufactured in strict accordance with national standards, and are certified in specialised enterprises. On slings, their varieties and the rules of notation will be discussed in this article.
Marking of slings is required. Each of these lifting devices in the substrate may have a tether, rope, chain or an item that is created based on a special matter. The use of slings occurs in virtually all sectors of the economy: in construction, in the industrial sector, in agriculture, navigation, etc.
These straps are capable of withstanding extremely low temperatures (-40 degrees Celsius) and very high (in the range of 400 degrees). The rope consists of a plurality of metal wires are securely woven together using special technology.
The configuration of the rope of slings allows to easily diagnose the degree of wear during operation, thus preventing the possibility of sudden rupture of these devices. In addition, the steel wire rope has the ability to smoothing the arising dynamic loads, and because so has a long-term safe operation.
Marking of slings rope of execution provides the following alphanumeric designations:
Marking of slings – this is just the tip of the iceberg. We should always remember the rules of lifting products. To do this, you should strictly comply with the following requirements:
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For service loads with sharp edges are best to use chain slings. These devices are made of steel links which, in turn, are connected to each other by welding. In the end, the resulting structure has high strength, reliability, flexibility and ease of use. Chain sling is good for the fact that he is not afraid of high or low temperature, exposure to acids or open flames. However, in comparison with analog cable chain variant will have much more weight.
Marking of slings made of chain, as follows:
The current requirements for labelling of slings say that on the tags, attached to them, must include the following information:
Manufacturing and marking slings provides that tag for chain and rope slings are produced necessarily made of metal – stamped alloy steel. All required information cause them to impact or shock-point method.
Textile slings metal tags do not hang, and are used to sew the vinyl copies. The data on such tags are applied with the use of indelible ink by means of thermal printing.
In the manufacture of braided rope sling tag is woven directly into the body of the product. If strop opressive, the tagis fixed on a special small loop.
Chain product provided with a tag using a clamp on the suspension link.
The Distinctive feature of these flexible fixtures to work with the goods is their great versatility.
Marking of textile slings has a similar principle with chain and rope options and provides for the marking or the tag of the payload, length of loop and type.
In General there are two main designations:
Requirements for the construction, testing and marking of slings says that a margin of safety of wire rope relative to the load of each branch shall be not less than 6.
Chain slings should be created solely on the basis of round-link chains. The safety factor of these slings should be kept at least 4.
In the calculation and production of slings on the basis of hemp, cotton or synthetic material, it is important to adhere to the safety factor of not less than 8.
It is Important to know that, regardless of the type of sling, they cannot be repaired, and after fabrication must be tested with load in excess of 25% of their stated in the passport.
Products (labelling, decoding them is given above in the article) in the case of individual production must undergo a compulsory inspection of all its elements. If lifting devices are produced EN masse, then the test is not less than 2% of specimens with each batch of manufactured items, but not less than two pieces.
During the execution of static tests of slings inspection person shall visually to be sure no residual deformation, cracks on the surface, displacement of the rope in their anchorages.
For transporting objects with sharp edges with the use of slings rope type are needed between the handles and ribs of the cargo to place the special spacers made of wood, rubber, metal, which serve to prevent damage to the rope.
If using a chain sling, it is extremely important to avoid any bending of the links at the edges of transported cargo.
Article in other languages:
AR: https://tostpost.com/ar/business/19139-slings-marking-requirements-transcript.html
BE: https://tostpost.com/be/b-znes/30663-stropy-mark-ro-ka-patrabavann-rasshyfro-ka.html
DE: https://tostpost.com/de/business/31121-lanyards-kennzeichnung-anforderungen-entschl-sselung.html
ES: https://tostpost.com/es/centro-de/31301-eslingas-etiquetado-requisitos-el-desciframiento-de.html
HI: https://tostpost.com/hi/business/17176-slings.html
JA: https://tostpost.com/ja/business/19355-slings.html
KK: https://tostpost.com/kk/biznes/30635-lmekter-ta-balau-talaptardy-toly-zhazyluy.html
PL: https://tostpost.com/pl/biznes/30510-zawiesia-oznaczenie-wymagania-transkrypcja.html
PT: https://tostpost.com/pt/neg-cios/30535-funda-identifica-o-requisitos-a-decodifica-o-da.html
TR: https://tostpost.com/tr/business/36168-boyunluklar-etiketleme-gereksinimleri-de-ifre.html
UK: https://tostpost.com/uk/b-znes/30609-stropi-markuvannya-vimogi-rozshifrovka.html
Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."
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