Innovation in Designing an Ergonomic Waste Shredding Machine for Waste Processing at TPS3R Kudus Regency

<p>Waste is a serious environmental issue both in Indonesia and globally, with negative impacts on the environment and health. Effective waste management, from TPS3R to households, is crucial in reducing its impact. In Kudus Regency, TPS3R implements the 3R concept before sending residual waste to TPA Tanjungrejo. Despite generating 31,855.73 tons of waste annually, only a small portion can be managed due to inadequate processing technology. Developing a waste shredder machine can enhance processing efficiency. This machine can shred various types of waste into compost or valuable raw materials. The research aims to design an ergonomic waste shredder machine for TPS3R Kudus using Quality Function Deployment (QFD), integrating customer preferences into technical design. Among 13 primary attributes, multifunctionality in shredding receives high priority with an importance rating (IR) of 4.6, while waste washing facility has the lowest IR at 4. Benchmarking against competitor products shows superiority in customer satisfaction for the designed machine. Improvement priorities in the House of Quality (HoQ) include machine frame at 10% and security sensor at 6%. The waste shredder machine is designed using QFD method, focusing on 13 main attributes with design dimensions based on anthropometric data: height 106 cm, width 78 cm, length 170 cm, and overall height 135 cm, ensuring comfortable and efficient use for operators.</p>