RANCANG BANGUN MESIN PENCACAH SAMPAH KEMASAN GELAS CUP MINUMAN PORTABLE
Keywords:
plastic shredder, dual stage, PET, single shaft crusher, reel cutterAbstract
The increasing consumption of PET plastic cup beverage packaging has led to an increase in the volume of plastic waste that requires more effective handling. One solution that can be implemented is the shredding process as an initial stage before recycling. This study aims to design a portable cup beverage packaging waste shredding machine with a dual-stage system that is capable of producing more uniform shredded sizes. The research methods include identifying needs, developing alternative concepts, selecting concepts using the weighting method, designing using SolidWorks, calculating machine elements, and simulating static loading. The machine uses a 2 HP AC electric motor with a two-stage shredding system consisting of a single shaft crusher and a reel cutter. The transmission system uses a clutch, pulley, and V-belt with a transmission ratio of 2.77, resulting in a crusher shaft rotation of 506 rpm. The design results show a theoretical production capacity of 5 kg/hour. The frame structure simulation produces a maximum stress of 12.68 MPa and a maximum deformation of 0.027 mm, which is still below the yield stress of AISI 1020 material so that the design is declared safe. Based on the results of the technical and economic evaluation, the third design alternative was selected as the best design.
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