This thesis deals with the design of a machine for threading plastic sheathing on single-sided band saw blades with dimensions from 4500 x 80 x 1.0 mm to 12500 x 290 x 1.85 mm. The aim of the thesis is to create an assembly model, the text is focused on a detailed description of the machine. The device was designed in SOLIDWORKS software. The main goal and partial goals of the thesis were met. The thesis is developed to the level of structural design and assembly description, along with calculations of key parts in the structural solution. The method of operating the machine is outlined. The thesis can serve as a starting point for future designs of a machine for threading protective plastic sheathing on saw bands of the stated dimensions