Pranga is a kind of sling, which is widely used in various industries such as electric power, metallurgy, petroleum, machinery, railway, chemical industry, port, mining, construction and so on. Prangas are the same as other slings. They have their own set of application and invalidation specifications. Note for the use of prangas: The prangas must correctly support the load.
Kjo do të thotë, forca e efektit duhet të jetë përgjatë boshtit të vijës qendrore të prangos për të parandaluar lakimin dhe ngarkesat e paqëndrueshme, për të mos përmendur mbingarkesën. Përdorimi dhe pavlefshmëria epranga should be rolled flexibly in the lifting hole, and no jamming is allowed. Phenomenon: The pranga body must not bear the effect of lateral bending moment, that is, the effect bearing capacity should be in the plane of the body.

Këndi maksimal i përfshirë midis manipulimeve të dy këmbëve të kryera ngapranga cannot be greater than 120 degrees. The use and invalidation of prangas The pranga is that when the wire rope sling is used as a binding sling, the horizontal pin part of the pranga should be connected with the keyhole of the wire rope sling. The appearance is when the rigging is lifted.

Konflikti midis litarit teli dhepranga causes the pranga to roll, and there is a risk of detachment. The use and invalidation specifications of the pranga. The pin is deformed up to 5% of the original size; the bolt is necrotic or slippery.