To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Seventh Edition © 2004 Prentice Hall, Inc. All rights reserved. DD DD GG GG GG MM MM MM AA AA L LL LL LL L Line Process Layout Chapter 7

To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Seventh Edition © 2004 Prentice Hall, Inc. All rights reserved. Line Balancing Big Broadcaster ABolt leg frame to hopper40None BInsert impeller shaft30A CAttach axle50A DAttach agitator40B EAttach drive wheel6B FAttach free wheel25C GMount lower post15C HAttach controls20D, E IMount nameplate18F, G Total244 WorkTimeImmediate ElementDescription(sec)Predecessor(s) Example 7.3

To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Seventh Edition © 2004 Prentice Hall, Inc. All rights reserved. Line Balancing Big Broadcaster ABolt leg frame to hopper40None BInsert impeller shaft30A CAttach axle50A DAttach agitator40B EAttach drive wheel6B FAttach free wheel25C GMount lower post15C HAttach controls20D, E IMount nameplate18F, G Total244 WorkTimeImmediate ElementDescription(sec)Predecessor(s) E H I D B F C A G Example 7.3

To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Seventh Edition © 2004 Prentice Hall, Inc. All rights reserved. Line Balancing Big Broadcaster E H I D B F C A G Desired output rate = 2400/week Plant operates 40 hours/week r = 2400/40 = 60 units/hour Example 7.4

To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Seventh Edition © 2004 Prentice Hall, Inc. All rights reserved. Line Balancing Big Broadcaster E H I D B F C A G Desired output rate = 2400/week Plant operates 40 hours/week r = 2400/40 = 60 units/hour c = 1/60 = 1 minute/unit = 60 seconds/unit Example 7.4

To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Seventh Edition © 2004 Prentice Hall, Inc. All rights reserved. Line Balancing Big Broadcaster c = 60 seconds/unit TM = 5 stations Efficiency = 81.3% E H I D B F C A G Desired output rate = 2400/week Plant operates 40 hours/week TM = 244 seconds/60 seconds = or 5 stations Efficiency = [244\5(60)]100 = 81.3% Example 7.4

To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Seventh Edition © 2004 Prentice Hall, Inc. All rights reserved. Line Balancing Big Broadcaster c = 60 seconds/unit TM = 5 stations Efficiency = 81.3% E H I D B F C A G CummIdle StationCandidateChoiceTimeTime S1AA4020 Example 7.5

To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Seventh Edition © 2004 Prentice Hall, Inc. All rights reserved. Line Balancing Big Broadcaster c = 60 seconds/unit TM = 5 stations Efficiency = 81.3% S E H I D B F C A G CummIdle StationCandidateChoiceTimeTime S1AA4020 S2B,CC5010 Example 7.5

To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Seventh Edition © 2004 Prentice Hall, Inc. All rights reserved. Line Balancing Big Broadcaster c = 60 seconds/unit TM = 5 stations Efficiency = 81.3% S1 S E H I D B F C A G CummIdle StationCandidateChoiceTimeTime S1AA4020 S2B,CC5010 S3B,F,GB3030 Example 7.5

To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Seventh Edition © 2004 Prentice Hall, Inc. All rights reserved. S1 S2 Line Balancing Big Broadcaster c = 60 seconds/unit TM = 5 stations Efficiency = 81.3% E H I D B F C A G CummIdle StationCandidateChoiceTimeTime S1AA4020 S2B,CC5010 S3B,F,GB3030 E,F,GF555 Example 7.5

To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Seventh Edition © 2004 Prentice Hall, Inc. All rights reserved. Line Balancing Big Broadcaster c = 60 seconds/unit TM = 5 stations Efficiency = 81.3% S1 S2 S E H I D B F C A G S1AA4020 S2B,CC5010 S3B,F,GB3030 E,F,GF555 CummIdle StationCandidateChoiceTimeTime Example 7.5

To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Seventh Edition © 2004 Prentice Hall, Inc. All rights reserved. Line Balancing Big Broadcaster c = 60 seconds/unit TM = 5 stations Efficiency = 81.3% S1 S2 S3 S5 S4 Figure E H I D B F C A G