ThisZN50 Insert Electric Vibrator Motor ishigh efficiency and easy to operation,provincial electricity,Itis suitable for concrete cast in site of various bridges,tunnels,building foundation,precast units,beams and columns in remote districts,especially an indispensable tool in various concrete construction sites where there is no electricity or in the condition of power down. The specification as follows: Type:ZN50 Rated Power:1.1KW Power Source:380/50v/Hz Rated Current:2.5A Vibrating Amplitude:1.15mm Vibrating Freauency:12000r/min Hz Centrifugal Force:580-680kg