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I need to calculate power requirement of each portion of tower crane (TC) since spec values are for general purpose.
In doing so,most are given in Kilowatt, but some in Newton-meter. So, I changed Newton-meter to Kilowatt by using:
Power (kilowatt) = Torque (Newton-meter) * rotational speed (radian/sec)
The resulting kilowatt is so small in compare with other models of same tonnage. e.g, slewing power of 8 ton:
TC = 2*65 Nm = 2*0.004 KW,
when other model of 8 ton TCs slewing power is given by 2*4KW.
Can anyone check whether my calculation is right or wrong?
In doing so,most are given in Kilowatt, but some in Newton-meter. So, I changed Newton-meter to Kilowatt by using:
Power (kilowatt) = Torque (Newton-meter) * rotational speed (radian/sec)
The resulting kilowatt is so small in compare with other models of same tonnage. e.g, slewing power of 8 ton:
TC = 2*65 Nm = 2*0.004 KW,
when other model of 8 ton TCs slewing power is given by 2*4KW.
Can anyone check whether my calculation is right or wrong?
