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Research Article |

Design of Ergonomic Harmonica Wire Forming Tools to Increase Work Productivity of Harmonica Fence Craftsmen

A harmonica fence is a type of fence made of steel wire that is zigzaggingly assembled into a harmonica. Making harmonica fences requires appropriate wire forming tools so that the results can be more precise and consistent. Formation of harmonica wire using the bending method. Bending is a job by applying pressure to certain parts so that plastic deformation occurs in the pressurized part. Harmonica wire is often used for daily needs, such as house fences, land area fences, livestock fences (cattle, chickens, and goats). Making harmonica wire still uses manual methods and requires labor, patience and a long time. This research aims to develop an effective and efficient harmonica wire forming tool to increase the productivity of craftsmen. This research uses an experimental approach in the form of tool development which includes the stages of needs analysis, tool design, prototyping, trials, and evaluation. Workload is calculated based on the worker's pulse, production yield is measured based on the length of the harmonica wire produced, and work productivity is calculated based on the ratio between output (production output) and input (workload) multiplied by his working time. The results showed that there was a decrease in workload and a significant increase in production results and work productivity between using the old method manually and using a new way, namely using ergonomic chain wire forming tools. Workload decreased by 10.3%. Production output increased by 59.8%, while labor productivity increased by 78.7%. Therefore, it is recommended that harmonica wire craftsmen use ergonomic harmonica wire forming tools.

Harmonica Wire Forming Tool, Ergonomic Work Tool, Craftsman Work Productivity

Gede Oka Pujihadi, I Komang Rusmariadi, I Putu Sastra Negara, I Ketut Gde Juli Suarbawa, M. Yusuf. (2023). Design of Ergonomic Harmonica Wire Forming Tools to Increase Work Productivity of Harmonica Fence Craftsmen. American Journal of Science, Engineering and Technology, 8(4), 194-198.

Copyright © 2023 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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