KB1A Multifunction Flanging Machine combines overlocking and sewing of mattress quilts with hand-pulling fabric. Features double air cylinder, adjustable presser foot pressure, and stepless speed regulation via HO HSING motor. Includes automatic flange cutting/re-insertion, new upper/down feeding system, and positioning sensor. User-friendly design requires minimal skill, with convenient air gun cleaner, waste collection rail, and spacious table. Cost-effective with quickly adjustable stitch length and free one-year supply of consumable parts.