Advances in injection molding and the circular economy
Dossier: Plastics technology
From electric multi-component cells and automated deburring to intelligent controllers for recycled materials: this dossier shows how precision, energy efficiency, and the circular economy are advancing injection molding and packaging technology.
The dossier shows how plastics technology is becoming more precise, efficient, and sustainable. One injection molding company is expanding its international production network with fully electric multi-component cells that integrate peripherals and conveyor technology and produce complex geometries for battery modules. Another manufacturer is automating the deburring of thermoset housings: a gentle wire belt blasting machine halves the number of personnel required, removes residual media, and complies with Atex specifications.
For fluctuating properties of PIR/PCR recyclates, new control functions demonstrate how viscosity fluctuations are detected, switching points are tracked, and fill levels are kept stable – either with a cavity pressure sensor or purely on the machine side.
In packaging, an extremely lightweight PET bottle sets new standards: 591 ml at only 5.89 g, around 30% less material, high top-load stability, and line suitability. The picture is rounded off by automated processing, which pre-sorts chrome-plated ABS rejects, demetallizes them using shock waves, and returns them to the cycle as plastic and metal fractions with up to 98% recovery.
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