The medium-sized industrial partner produces sensors for measuring water-soluble gases at great depths. The customer portfolio includes well-known plant engineering companies from the fields of offshore energy generation and oil production. Following a development phase of several years for the measuring instruments, the company is looking forward to a very dynamic order situation. The rapidly growing demand, however, presents the company with logistical challenges with regard to the planning and control of production and logistics processes. The project aimed on restructuring the assembly line of an pump module and to design it according to the principles of lean management. The resulting structure of the assembly line enables the company to reduce unnecessary ways, avoid waste and monitor the quality of the pump modules already during the production process.