Automatic tire changer with helper arm 1)Rim size : 10"-24" 2) Max wheel width: 420mm 3) Max wheel diameter :1150mm 4) Bead breaker force 2500kgs 5) Pressure : 0.8-1.2Mpa 6) Noise less than 70db 7) Power supply : 220V/380V 8) Packing : 940x980x780mm,300kgs,0.93cbm