In this thesis a composition and a design for a conveyor of metal fin for a milling machine will be made. The thesis was commissioned by Vierumäen Metalli Oy, the owner of the workshop in which the milling machine is. In addition to the composition, this thesis contains an analysis of the 3d-modeling, a comprehensive description of the structure with the measurements and calculations of the critical components concerning the operation of the conveyor. The conveyor is necessary because without it the surroundings of the milling machine will be filled with metal fin which complicates the work on the milling machine. According to the design and calculations the conveyor will be significantly stronger than the estimated load requires.