The fully automatic joint assembly system SXGLM-80 is designed to assemble cardan shafts. The machine uses the bell, cage, hubs, and balls to assemble a cardan shaft. Depending on the design, protective rings, protective caps and sealing plugs can also be pressed on. The cardan shafts can be engraved with a laser marker. Optionally, the cardan shafts can also be moistened with a moisture protection agent after the assembly process has been completed.