Fine-grained products are harvested in two manual and mechanized forms. Nowadays, common combine harvesters are
used, but fine-grained products such as rapeseed, sesame and sorghum cannot be harvested with conventional heads of combine
harvesters due to the excessive loss in the head of the combine harvester. Therefore, the necessity of design an d fabricating
machines and heads of combine harvesters became the center of attention to researchers because fine-grain products have lots
of nutritional and medicinal benefits. In this research, we are going to have an overview of the special headers and machines for
harvesting fine-grain products.
Keywords: Machine, head of combine harvester, harvesting, fine-grained products