Once the model of the tube sections of SB-250 has been chosen, it is possible to consider placing terminals of smaller capacity so as not to force the use of shackles for a total capacity of 250 tons for only 150 tons. We now check the height and it gives us that it is 0.87X, that is 17.4 meters, therefore it meets the requirement.Ħ. And we find that the capacity at 30º at 20 meters is up to 250 tons for what it meets.ĥ. We directly dismiss the configuration at 20º because it does not give the height. Finally at 20º it reaches 170 tons at 20 meters but at 20º the same thing happens as in section 2 and we must also dismiss it.Ĥ. At 30º it reaches 152 tons but at 17 meters. We would pass by checking the SB-170/250 that supports up to 250 tons At 45º it reaches 162 tons but only up to 12 meters. We verify by the formula of question # 3 that for the 20º configuration we require a height of 1.37X, that is, 27.4 meters of height, which exceeds the predetermined height requirement in this example case.

We check the capacity of a Spreader Beam SB-170 that supports up to 170 tons and check that it reaches that capacity at 20m but only at 20º.Ģ. Therefore we have a wide range of options capacity of a Spreader Beam to accommodate the product to each application.ġ. On the other hand, configurations that lose less height are more robust and heavy, which may limit the operation due to the available crane capacity, apart from being more expensive.

On the other hand, it is necessary to consider that the configurations that lose more height are more slender and have a more contained weight. The choice between one or another configuration capacity of a Spreader Beam will be due to the height available under hook and considering the length of the entire set of lifting accessories, the height of the load itself and the obstacles and height to be overcome. The tables are valid for any value equal to or less than the said angle with the vertical. Considering the angle that forms the top slings with the vertical one (In case of having the complementary angle it is only necessary to subtract it from 90º to have it). In the tables capacity of a Spreader Beam in our catalog (available for download at the bottom) are developed three typical work configurations: 20, 30 and 45º.

Lifting beam design calculations