Engine:5.5hp/ 6.5hp gasoline engine Frequency:12000-13500vpm Vibrator head dia. x length: 50x480mm /70x480mm Vibration amplitude: 1.3mm / 1.5mm Flexible shaft length: 4m or 8m Starting system: recoil / electric starting Net Weight: 35kg / 35kg Packing Size: 510x425x425mm /900x750x140mm