Lightweight construction is one of the most important topics of the 21st century. Especially in the automotive industry this topic has a high relevance. The key for building lightweight constructions is the use of suitable lightweight materials. These materials are characterized by high weight-related stiffness and strength. Particularly suitable for this task are continuous fiber-reinforced plastics with thermoplastic matrix. These fiber-reinforced plastics are manufactured as semi-finished product in the shape of sheets. For processing these sheets a combination of injection molding and forming is used. The production and processing of continuous fiber-reinforced thermoplastic sheet generates a certain amount of sorted offcut waste that is currently used only for thermal recycling. However, because of the thermoplastic matrix of the composite material mechanical recycling is also possible. In this study the mechanical recycling of the composite offcut with PA 6 matrix and continuous glass fibers is examined. The recycled material is to be processed via injection molding as short-fiber-reinforced material. Therefore the first step is to turn the material into a shape that is suitable for injection molding. The offcut is first shredded with a single rotor shredder. Subsequently, a twin-screw compounder and a pelletizer are used for granulating the material. In this process stage the shortening of fibers is minimized by using a screw that produces low shear energy. In the injection molding process tensile bars are produced with varied process parameters. Based on tests of the impact strength, tensile strength and the Young’s modulus optimal processing parameters are investigated. Furthermore the fiber length reduction during the twin-screw process and the injection molding process is investigated. With REM-shots the effects of the fiber length reduction on the failure of the specimens are shown.