1 To exert adequate power with automatic sensor judging the thickness of fabric; 2 Change of gather-sewing is no more needed,simply with proper change of matrix; 3 Compact and reasonable structured and easy to do maintenance,injury is avoided by its automatic locking system; 4 Hands are freed from controlling motor with paddle switch; 5 Punching,buttoning is top and buttoning in bottom can be finished in this machine,which help to increase productivity; 6 It is outfitted with three foot punchers for customers to choose; 7 With digital display technology,the punching force is easily adjustable from 950N to 2500N,which enlarges the sphere of application of the machine; 8 Position zeroing device increased the accuracy rate of button attaching; 9 Equipped with intelligent luminescence device,there's no need for much illumination in the workshop in night,which reduces eye-fatigue for workers,when saves electricity.