Feasibility study of implementing an industrial robot for induction


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Emmanuel Nyameke pdf

6 COST ANALYSIS 
6.1 Number of work pieces
The number of work pieces for the cost analyses of the study is based on three 
suggested work pieces (ABC) with handling time and hardening time of each of 
these pieces. We have estimated the number of work pieces that can be carried out 
by the robot and have compared the number to that of human. The average 
number of hours of the induction machine is estimated to be thousand five 
hundred (1500) per year. In all the three work pieces we estimated the sales of the 
services to be €105 per every hour. The variable cost of production both robot and 
human is estimated to be twenty percent (20%) of one our sales.
The robot will be working for eight hours a day if there are available work pieces 
to be worked on. The operation by human operator is also eight hours in a day and 
out of the eight hours one and half hours is for lunch and coffee breaks. Therefore 
the actual hours will be six and a half. Tables 1, 2 and 3 show all the information 
of the work pieces (ABC) should the robot is compared to a human operator to 
cover the average working hours per year. 
Table 1 Work piece A 
Features 
Robot 
Human 
Total time 
45 seconds 
45seconds 
Number of hours per year 500 hours 
500hours 
Number of work pieces
40,000 pieces 
32,500 pieces 
 


36 
Table 2 Work pieces B 
Features 
Robot 
Human 
Total time 
60 seconds 
60seconds 
Number of hours per year 500 hours
500 hours 
Number of work pieces 
30,000 pieces 
24,375 pieces 
Table 3  Work piece C 
Features
Robot 
Human 
Total time per piece 
90 seconds 
90seconds 
Number of hours
500hours 
500 hours 
Number of work pieces
20,000 pieces 
16,250 pieces 

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