Flyingman GK9 series (including models GK9-2, GK9-500, GK9-890) comprises lightweight, portable, electric bag closing machines designed for high-efficiency, single-thread chain stitching on various materials. Primarily used for sealing rice, salt, grain, woven, and plastic sacks, they operate at high speeds (approx. 800–1000 rpm) with a robust, compact, industrial design