The most important performance parameters of the basic working capacity of the lifting machine are the lifting capacity and working level. 1 weight refers to the maximum weight of the weight that is allowed to be lifted under the specified working conditions, that is, the rated lifting weight. Generally, cranes with electromagnetic chucks (see lifting cups) or grabs should also include the weight of the electromagnetic chuck or grab. The hoisting weight of the jib crane also includes the weight of the hook set. 2 The working level is a performance parameter that reflects the overall working condition of the lifting machinery, and is an important basis for the design and selection of lifting machinery. It is determined by the total number of working cycles and load conditions that the hoisting machinery needs to complete during the required period of use. The International Organization for Standardization (ISO) stipulates that the working level of the lifting machinery is divided into 8 levels. China only stipulates that the crane is divided into 8 levels, and the light and small lifting equipment, elevators, and overhead monorail systems are not classified. The working cycle is also an important parameter for cranes with strong regularity and repeatability, such as cranes for loading and unloading cargo on docks, stacking cranes for elevated warehouses, and hopper elevators for feeding blast furnaces. The duty cycle refers to the time required to complete a work cycle, which depends on the speed of the organization and is related to the handling distance. The above-mentioned cranes sometimes use productivity as an important parameter, and are usually expressed in terms of the amount of lifting done per hour. Double Wire Fence,Double Rod Mat,Twin Wire Fence,Double Wire Mesh Fence Hebei Haiao Wire Mesh Products Co., Ltd. , https://www.haiaowiremeshfencing.com