Document Type : Research Paper


1 Production and Metallurgy Engineering department, University of Technology - Iraq

2 Production and Metallurgy, Engineering department, University of Technology, Baghdad, Iraq,

3 Prosthetics and Orthotics Engineering department, Al-Nahrain University, Baghdad, Iraq,


Production Line Balancing (PLB) is the technique of assigning the operations to workstations in such a way that the assignment minimizes the idle time between workstations. PLB aims to equator the workload in each workstation to assure maximum production flow. By adding machine in specific configurations is one treatment which leads to this leveling in workload. This research studies the different efficiencies of the added machine and the effect of these efficiencies on line balancing to select the machine with suitable efficiency. This will be led to reduce the idle time between workstations and increasing production flow. The work time considered as the efficiency criterion for this case study. The study has been implemented on a dumb truck production line and resulted in increasing the line efficiency to 81.7%.


[1] A. Shinde, and D. More, “Production line balancing: is it a balanced act ? ,” Vikalpa, Jun; 40(2):248-251, 2015.
[2] A. N. Adnan, N. A. Arbaai, and A. Ismail, “Improvement of overall efficiency of production line by using line balancing,” ARPN Journal of Engineering and Applied Sciences, 11(12), 2016.
[3] U.S.B. Rakiman, and A.T. Bon, “Production line: effect of different inspection station allocation,” Procedia Engineering, 53, pp. 509-515, 2013.
[5] O.E. Great and A. Offiong, “Productivity improvement in breweries through line balancing using heuristic method,” Int. J. Eng. Sci. Technol, 5(3), pp. 475-486, 2013.
[6] W. Grzechca, “Assembly line balancing problem with reduced number of workstations,” IFAC Proceedings Volumes. Jan 1; 47(3):6180-5, 2014.
[7] K. Syahputri, R.M. Sari, I. Rizkya, J. Leviza, I. Siregar, “Improving assembly line balancing using moodier young methods on dump truck production,” IOP Conference Series: Materials Science and Engineering, Jan (Vol. 288, No. 1, p. 012090). IOP Publishing, 2018.
[8] S.K. Subramaniam, SH. Husin, Y.B. Yusop, A.H. Hamidon, “Machine efficiency and man power utilization on production lines,” In WSEAS International Conference. Proceedings. Mathematics and Computers in Science and Engineering, Dec 15 (No.7). World Scientific and Engineering Academy and Society, 2008.
[9] R. Stasiak Betlejewska, and R. Ulewicz, “The effectiveness of selected machinery and equipment in the woodworking joinery: the path forward for wood products,” A Global Perspective-Proceedings of Scientific Papers, pp.149-156, 2016.
[10] K.M. Cheh, “Analysis of Overall Equipment Effectiveness (OEE) within different sectors in different Swedish industries,” MSc Thesis Mälardalen University, Sweden, 2014.
[11] K. AnTosz, and D. Stadnicka, “Evaluation measures of machine operation effectiveness in large enterprises: study results,” Eksploatacja i niezawodność, 17, 2015.
[12] G. Shantideo and R.M. Manish, “Increasing the productivity by using work study in a manufacturing industry - literature review,” International Journal of Mechanical and production engineering research and development (IJMPERD), Vol. 8, Issue 2, pp. 369-374, Apr 2018.
[13] Y. Cohen, “On capacity planning for multi-stage multi model production lines with parallel machines,” Ifac proceedings, Vol. 1, 46(9):851-6, 2013.
[14] F.F. AbdAlrazaq, “Multi-model assembly line balancing,” MSc. Thesis, University of Technology, Iraq, 2012.