Marine lifting pulley heavy-duty block and tackle release hook pulley 2/3/5 ton all-inclusive lifting block

▶ The lifting block is an important lifting tool, which has the characteristics of simple structure and convenient use.▶ It can change direction of pulley, steel rope and can lift high weight cargoes, especially series of pulley combined with windlass, mast and other lifting machinery. They are widely used in installation in construction and divides into hook type(opentype) and ring type(closed type).▶ Mainly used in the production and construction of factories, mines, agriculture, electricity, buildings, docks, warehouses, machine installation, cargo lifting, etc.Feature:1,Rolling bearings are installed ,thus the friction coefficients is small and the tackle rotates more flexibly.2,The main parts are made of alloy steel, which is superior to national safety standard.3,The lubricant is filled up before assembling, the service life will be lengthened with more than 3 times than that of other general blocksNOTE1. Before use, visual inspection must be carried out. Any hooks, rings, guards, and partitions with severe deformation cracks, rim damage, bearing deformation, and other wear and deformation conditions must not be used.2. prohibit overloading3. Pay attention to keeping the lubricating condition of the sheave axles good to reduce frictional resistance and improve efficiency.4. When using pulley block to lift, it is forbidden to directly grasp the moving wire rope by hand.