This thesis has been carried out in cooperation with Burseryds Bruk AB. Burseryds Bruk is a company that manufactures steel strapping. The thesis is about developing a concept of protection that should be used to protect the operators from the rotating parts of the machinery lines. The aim of the project was to improve work safety for operators working at the machines by producing a concept for a protective device. The project's first part was based on ergonomic data collection methods to understand the operations performed on the machine and the hazard occurring during the process. The methods used to collect data were, interviews, observations and questionnaires with the operators of the company. This was then used to make the ergonomic...