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Line Balancing Problem A B C 4.1mins D 1.7mins E 2.7 mins F 3.3 mins G 2.6 mins 2.2 mins 3.4 mins

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Questions? 1. What is the bottleneck? 2. What is maximum production per hour? 60/4.1=14.63 units 3. What is efficiency and balance delay? 4. How to minimize work stations? 5. How should they be grouped? 6. New efficiency? 4.1 minutes

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Calculate efficiency A. 73.2% B. 56.7% C. 69.7% D. 79.6% E. 81.2% A B C 4.1mins D 1.7mins E 2.7 mins F 3.3 mins G 2.6 mins 2.2 mins 3.4 mins

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(2.2+3.4+4.1+2.7+1.7+3.3+2.6) 4.1x7 20 28.7 69.7% 1-69.7%=30.3% Balance Delay

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Number of Work Stations (bottleneck) 20 4.1 = 4.88 work stations

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Line Balancing Solution A B C 4.1 D 1.7 E 2.7 F 3.3 G 2.6 Station 1 Station 2 Station 3 Station 4 2.2 3.4 All under 6 minutes? (6.0) (5.6) (5.8) 4 Stations 20/24=83.3% Max prod./hour 60/6 10 units/hour

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Line Balancing Problem A B C 4.1mins D 1.7mins E 2.7 mins F 3.3 mins G 2.6 mins 2.2 mins 3.4 mins 5.6 5.0 20/5.6x5 = 20/28 = 71.4% 5 Stations Max Prod./hour 60/5.6 10.7 units/hour

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40 secs 59 secs 84 secs 34 secs 56 secs 45 secs What is the minimum # of work stations? Round down. A.3 B.2 C.4 D.5 E.6

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40+59+84+56+34+45 = 318 318/84 = 3.78 or 3 work stations What is the efficiency with 6 operators? 318/6 x 84= 318/504 = 63%

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40 secs 59 secs 84 secs 34 secs 56 secs 45 secs 99 secs 118 secs 3 Stations ? 318/3x118 318/354 = 89.8% 101 secs

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40 secs 59 secs 84 secs 34 secs 56 secs 45 secs 4 Stations? 99 secs 84 secs 56 secs 79 secs 318/4 x 99 = 318/396 = 80.3%

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