The Kyio series is a fully automatic external clamping chamfering machine with a compact design, designed for grooving in narrow working spaces and small diameter pipeline sections. The external clamping type positioning installation is adopted, and each pipe specification and diameter has a corresponding tensioning unit, which ensures automatic centering, reliable clamping, and convenient operation. It is widely used for pipe slotting, on-site maintenance, and batch processing of professional equipment such as water wall, radiator, boiler tube sheet, and thermal power plant.