JEONIL CONCRETE VIBRATOR JIV- 60 Specification Model : JIV- 60 Vibrator DiaxLength : 60x545 ( mm) Frequency : 12000 ~ 14, 000 ( vpm) revolution of Flexible Shaft : 3000 ~ 3, 600 ( rpm) Vibration Amplitude : 2.4 ( mm) Length df flexible Shaft : Standard: 6m ( m) ( 4~ 7m: available) Weight : 24 ( kg) w/ o drive unit Electric Motor : 3HPx2P ( JGM-3) ( 31kg) Engine HP/ RPM : as required ( max) 3.5~ 6HP/ 3, 600RPM Gasoline