Design of Tofu Cutting Tools to Improve Repetitive Tasks Using OCRA

11th International Seminar on Industrial Engineering & Management, "Technology and Innovation Challenges Towards Industry 4.0 Era

工业技术（总论）

Haulian Siboro, Benedikta Anna^1 ; Afma, Vera Methalina^1 ; Purbasari, Annisa^1 ; Kasim, Muhammad Qodri^1

Department of Industrial Engineering, Universitas Riau Kepulauan, Indonesia^1

关键词: Cutting process;    Designing tools;    Hand anthropometry;    Low back pain;    OCRA;    Repetitive task;    Research subjects;    Waiting time;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/528/1/012028/pdf
DOI  :  10.1088/1757-899X/528/1/012028

学科分类：工业工程学

来源: IOP

【 摘 要 】

Cutting process is one of processes in producing tofu before being packaged and marketed. Generally, cutting tofu is performed manually using a ruler with repetitive movements as 20-24 times, therefore it required longer time to cut and cause low back pain (LBP) in workers. Present study objective is to analyze the risk of work with repetitive task in the process of cutting tofu and designing tools to reduce these risks without decreasing the quality of the tofu. The methodology use OCRA and anthropometry which performed on two tofu factories (Mr. Joko and Mr. Udin) in Batam, as research subject. The results showed that repeated movements during tofu cutting were carried out for 33-35 seconds, with the percentage higher at hands work and waiting times in seconds. Furthermore, the OCRA risks of repetitive movements assessment is classified as medium-risk conditions (3.8-4.48). However, it is necessary to repair the cutting tools. Improvements are gained by designing cutting tools in accordance with the operator's hand anthropometry. The new tofu cutting tool produces only 2 times repetitive movements, which is lesser and using OCRA assessment the level of movement risk becomes optimal (≤ 1.5).