Hoist جرثقیل برقی, which are produced in two main types of hand-held electric cranes and tow wire electric cranes, are considered to be very efficient tools in load lifting. The electric crane, which is used in tonnage of 1 to 10 tons, is often of the chain type and in the higher tonnage of the towline type, is produced in 2 functions only with load lifting capability, in the form of 4-function electric crane with overhead trolley and 6-function gate electric crane is used. Electric hoist جرثقیل برقی is produced with different brands of Japanese, Korean, German and Chinese is imported in different tonnages in Iran.
Wire rope hoist is a type of lifting instrument that is mostly used foe lifting capacities higher than 10 Metric Tons. wire rope electric hoists جرثقیل برقی سیم بکسلی is often used on the ceiling rails and with a trolley for better and more dimensional applications. A three-phase electric motor is attached to wire rope hoists that provides the mechanical rotation for lifting purposes. 6X19 structure of steel wire rope سیم بکسل in diameters varying from 8 to 13 mm is used on wire rope hoists. there are much limiter producers of wire rope hoist compared to chain hoists. a high number of second hand German made DEMAG wire ropes are being used and sold currently in Iran.
4D electric hoist with trolley is the most common type of lifting instrument for work shops. this type of electric hoist not only has the ability to lift or lower the weights in vertical direction but also can move and transmit the goods on ceiling rails horizontally on X or Y direction. 4D electric hoist with trolley has a remote control that can perform all the applications by pressing the right button. the ceiling trolley for each electric hoist جرثقیل برقی is usually produced by the same produce of hoist and should have at least the same capacity as the nominal capacity of hoist.