An intelligent, resistance-based dual-function arm training machine. Powered by an advanced motor, it delivers precise, smooth, and fully controllable resistance. With a single unit, users can perform seated biceps curls and triceps pushdowns, eectively strengthening the core arm muscle groups. It is an ideal choice for sculpting arm denition, enhancing upper-body pulling and pushing strength, and improving arm function—particularly suited for tness enthusiasts and rehabilitation users who demand high precision and safety.