Most cranes have multiple working mechanisms, and most lifting machines are mobile machines. The working height of cranes is high, and the mass of objects they carry is large, so it is easy to form dynamic loads. Dynamic loads are more harmful than static loads, and dangerous and harmful factors are easy to form and accumulate. If Crane rental company Accidents may occur if they are not found and handled in time.

As we all know, the crane is a machine that works intermittently during the week. The electrical equipment has heavy work, many requirements for control points, and poor working environment conditions. At the same time, it is also affected by the physical, behavioral and emotional turbulence of the operator. During the operation of the crane, it is easy to produce dangerous and hazardous factors, and it is easy to fail. Hoisting refers to machinery Equipment displacement Or handling, also a special term for equipment displacement. When purchasing a crane, the first thing to be determined is the crane tonnage, which will directly affect the crane's lifting capacity. Then, how to determine the tonnage of the crane? below, Huai'an Crane Rental Company Let's introduce it to you!

1. When selecting the crane tonnage, it must be clear that the maximum lifting capacity, the length of the boom, the longer the boom extends, the larger the working radius (where the weight rotates from the center), and the smaller the lifting weight. For example, an 8-ton crane can lift an 8-ton weight when the boom is not fully extended, but with the extension of the boom, when the boom is 30 meters long and the working radius is about 20 meters, the lifting capacity becomes 1300 kg.

2. It should be noted that the optimal lifting capacity of general cranes is about 90% of the maximum rated lifting capacity. When selecting a crane, try to have a certain margin. The principle of cart pulling trolley is conducive to extending the service life of the crane. Therefore, when selecting a crane, try to select a crane that is one level higher than the required tonnage.

3. When the crane is working, remind everyone not to lower the elevation angle of the boom below 40°, The lower the lifting angle of the boom, the greater the weight the boom bears, and the easier it is to damage the boom, or even break the boom.

When selecting the crane tonnage, it mainly depends on what goods you are lifting. The size of the crane tonnage is selected according to the needs. It is too wasteful and too small to lift. If it is purchased, it will be very troublesome if it is not enough. Therefore, the selection of crane tonnage must be carefully considered.