... type concrete vibrator ,with cetificate CE, CCC, ISO9001 etc. ZN Electric Insertion Type Concrete Vibrator Item\TypeZN35ZN50ZN70UnitVibration Stick Diameter355070MmFrequency200183183≥HzVibrant ... ≤mmWeight358kgSoftaxleDiameter101313mmDiameter303636mmLength400040004000mmThe motor Power1.11.11.5kwVoltage220/380380380VSpeed284028402840R.P.M ZN Electric soft-axle planet insertion type concrete vibrator