Klassen Toy Company, Inc., assembles two parts: Part 1 is first processed at wor

Question

Klassen Toy Company, Inc., assembles two parts: Part 1 is first processed at workstation A for 15 minutes per unit and then processed at workstation B for 10 min. per unit. Part 2 is simultaneously processed at workstation C for 20 min per unit. Work stations B and C feed the parts to an assembler at workstation D, where the two parts are assembled. The time at workstation D is 15 minutes.Klassen Toy Company, Inc., assembles two parts: Part 1 is first processed at workstation A for 15 minutes per unit and then processed at workstation B for 10 min. per unit. Part 2 is simultaneously processed at workstation C for 20 min per unit. Work stations B and C feed the parts to an assembler at workstation D, where the two parts are assembled. The time at workstation D is 15 minutes.

a. what is the bottleneck of this process?

b. what is the hourly capacity of the process?

Explanation / Answer

Hourly capacity of workstation A = 60/15 = 4 units

Hourly capacity of workstation B = 60/10 = 6 units

Hourly capacity of workstation C = 60/20 = 3 units

Hourly capacity of workstation D = 60/15 = 4 units

(a) System process time = bottleneck time = 20 min/unit

(b) Hourly capacity = time in an hour/bottleneck time

= 60min/20 = 3 units/hr

* Process cycle time = 25 min + 15 min = 40 min

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