Klaus Raiser GmbH is a supplier of sophisticated mechanical engineering components and a contract manufacturer for friction welding. Compressed air is omnipresent in the plant. If the components are cleaned of scale after welding with sandblasting, the demand for this expensive form of energy increases extremely. To ensure high availability of this medium, the paver therefore relies on four direct-drive screw compressors from ALMiG's V-Drive series. With their energy-saving speed control, they adapt to permanent load changes and Raiser avoids cost-intensive idle times.