Shacklewani nau’i ne na majajjawa, wanda ake amfani da shi a masana’antu daban -daban kamar wutar lantarki, karafa, man fetur, injina, layin dogo, masana’antun sinadarai, tashar jiragen ruwa, hakar ma’adanai, gini da sauransu. Ƙuƙummai iri ɗaya ne da sauran slings. Suna da nasu tsarin aikace -aikacen da keɓaɓɓun bayanan. Lura don amfani da ƙuƙwalwa: Dole ne ƙuƙumma su tallafawa nauyin daidai.
Wato, ƙarfin tasirin yakamata ya kasance tare da ginshiƙin tsakiyar sarka don hana lanƙwasa da kayan da ba su da ƙarfi, ba tare da ambaton wuce kima ba. Amfani da rashin inganci nadauri should be rolled flexibly in the lifting hole, and no jamming is allowed. Phenomenon: The dauri body must not bear the effect of lateral bending moment, that is, the effect bearing capacity should be in the plane of the body.

Matsakaicin ya haɗa da kusurwa tsakanin rigingin kafa biyu da aka ɗaukadauri cannot be greater than 120 degrees. The use and invalidation of dauris The dauri is that when the wire rope sling is used as a binding sling, the horizontal pin part of the dauri should be connected with the keyhole of the wire rope sling. The appearance is when the rigging is lifted.

Rikici tsakanin igiyar waya dadauri causes the dauri to roll, and there is a risk of detachment. The use and invalidation specifications of the dauri. The pin is deformed up to 5% of the original size; the bolt is necrotic or slippery.