An existing factory has the production process shown in the figure below. Manufa

Question

An existing factory has the production process shown in the figure below. Manufacturing fittings must be processed through each of file three operations (lathe, mill, anti grinder) n sequence. But it does not matter which lathe is used. Each lathe is capable of handling 10 fittings per hour, each mill can handle 40 per hour, and the grinder can handle 80 per hour. What is the process time (bottleneck time) for the system? (in minutes/unit) 6 1.5 40 0.75 30 2 4.25 8.25 130 What is the throughput time for the system? (in minutes/unit) 6 1.5 40 0.75 30 2 4.25 8.25 130

Explanation / Answer

9. the processing time at mill= 60/40= 1.5

the processing time at grinder= 60/80= 0.75 minutes

the processing time per unit at lathe= 60/10= 6

the total processing time= 1.5+0.75+6= 8.25, option H is the right answer

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