Sustainability and a circular economy are inconceivable without recycling technology. Demand for solutions that protect the environment is greater than ever. The range of recyclable materials stretches from old tyres and batteries to cement. The mechanical engineering industry supports this sector with environmental technology for screening, shredding, separating, drying, conveying and compacting. Mechanical process engineering even plays a role in wastewater treatment, such as in pelletising sewage sludge. As well as designing equipment for environmental engineering and recycling technology with the appropriate functions, manufacturers must keep the necessary maintenance to a minimum.