Answer Posted / sanoj

For calculating the productivity we have to know the
capacity of Excavator.

Let me assume the capacity of the Volvo 210 excavator =
1.22 Cum.

Consider the efficiency as 75% (This may be changing based
on the type of material to be excavated)

Therefore, net capacity = 1.22*75%= 0.92 Cum.

time per swing(unload,swing,fill,swing) = 20seconds =>
20/60 = 0.33minutes

Consider 5 minutes rest taken by the operatoer per hour.

Therefore, no of cycles per hour = 55/0.33 = 165

capacity per hour = 165*0.92 = 151.8 Cum/Hour

In similar fashion for dozer and other equipment can be
calculated.

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