7. Megan is asked to produce 100 iPads an hour. It takes 30 minutes to receive t

Question

7. Megan is asked to produce 100 iPads an hour. It takes 30 minutes to receive the necessary components from the previous workstation. Each output container holds 20 iPads. The facility currently works with a safety factor of 20 percent. How many kanbans should be circulating between Megan’s process and the previous process?

8. Referring to Problem 7, what happens to the number of kanbans and to inventory levels in each case? a. The time required to receive material is increased to 40 minutes. b. Output expectations decrease to 250 iPads an hour. c. The size of the container is increased to 20 iPads.

Explanation / Answer

7) Number of Kanban = D*T*(1+x)/C

D = Demand = 100 units per hour

T = Lead time = 30 minutes or 0.5 hours

x = Safety factor = 20% = 0.2

C = Container capacity = 20

Number of Kanban = 100*0.5*(1+0.2)/20 = 3

8)

a) T = 40 minutes or 40/60 = 0.67 hours

Number of Kanban = 100*0.67*(1+0.2)/20 = 4

b) D = 250

Number of Kanban = 250*0.5*(1+0.2)/20 = 7.5 Thus 8 kanban

c) Size = 20+20 = 40

Number of Kanban = 100*0.5*(1+0.2)/40 = 1.5. Thus, 2 cards

Related Questions

Navigate

• Browse (All)
• Browse 7
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.