Furniture Face Lift refinishes old wood furniture. Their process for refinishing

Question

Furniture Face Lift refinishes old wood furniture. Their process for refinishing chairs has 6 workers and 4 stations. Each chair starts at the Stripping station, then goes to Priming, then to Painting and finally to Inspection. Where there are multiple workers within a station, each worker works independently on his/her own chair. Assume inventory buffers are allowed between each station.

What is the maximum number of chairs per hour that can be produced? Assume they start the day with inventory at each station to work on. (The accuracy should be of two digits after the decimal places.)

Station Staffing Processing time (hours per chairs per worker) Stripping 3 1.65 Priming 3 1.2 Painting 2 0.9 Inspection 2 0.9

Explanation / Answer

Capacity at Stripping stations = 3/1.65= 1.81

Capacity at Priming Station = 3/1.2 = 2.5

Capacity at Painting Station =2/0.9= 2.22

Capacity at Inspection Station = 0.9/ 2 = 2.22

Stripping stations is a bottleneck and reduces process capacity to 1.81 chairs per hour

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