Question

Plainwell Polymers is going to producing the main dashboard structure for a new car design. The dashboard will be produced in three colors with expected daily demand as follows:

Black: 480 units/day

Grey: 140 units/day

Tan: 180 units/day

The injection-molding machine can produce a total of 1,135 parts per day running 24 hours per day. If Plainwell is going to produce the parts using a cyclic schedule and it takes 2 hours to change from one color to the next, what is the minimum cycle time for the cyclic schedule in hours?

Answer 1

As per Instruction, Plainwell Polymers is going to make the parts using cyclic schedule and given data is that it takes 2 hours to change from one color to the next, so, here cycle will include --- Black color – changing time – Grey Color – Changing time – Tan Color – Changing Time and move to Black color,

Again, 1 day = 24 hours, for Black = 24 Hours / 480 Units = 0.05 Hours per unit, For Grey = 24 hours/140 Units = 0.17 hours/unit, for Tan 24 Hours/180 units = 0.13 hours per unit,

Minimum cycle time for the cyclic schedule in hours = 0.05 Hours + 2 Hours + 0.17 hours + 2 Hours + 0.13 hours + 2 Hours = 6.35 hours