concrete vibrator ZN-70G vibration rod diameter: 70MM vibration rod frequency: 183HZ vibration rod amplitude: 1.2MM vibration rod weight: 8KG diameter of soft shaft: 13MM diameter of soft tube: 36MM soft shaft&soft tube length: 4000MM motor rated power: 1.5KW motor voltage: 380V motor speed: 2840R.P.M overall diameter: 320*180*280MM total weight: 33KG