The publication verifies the theoretical possibilities of reducing production costs and production time for machine clamping jaws. The primary idea involves maintaining the design for conventional production while replacing the steel alloy 1.7225 with the ONYX plastic composite material reinforced with carbon fiber. The study was first verified computationally and then experimentally in industrial operations. The results of the study were recorded and carefully analyzed. The usability of the ONYX composite, in conjunction with carbon fiber, does not support its use in industrial operations. Although the rotary system was significantly lighter, the clamping elements exhibited relatively high elasticity values. Therefore, the results were unsatisfactory but highly beneficial for the practice and usability of plastic composites.