tower crane load chart
An important part of the tower crane is the load chart, really it is essential that the crane operator as well as the crane crew knows the load chart back to front. The chart will tell the crane operator as well as his dogman,and rigger what they can lift at what radius for the configuration the crane is set up in.
Our crane is set up at 50 meters and at the moment it is in 2 part meaning that 2 cables go to the hook block, this crane allows for 2 part and four part (the different configurations allow for different mechenical advantage and alter the lifting capacity of the crane)
From the load chart we know we can lift 1300kgs at 50 meters (the furtherest point) Care must be taken to allow for the weight of the lifting chains and the crane cable weight.
Whilst there are indicators on the control pannel on the crane that tell you how much lifting capacity you have it is important to know the chart as you do not want to pick up a load within capacity and not be able to land it in the required spot due to it being out of lifting capacity.
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