Hydraulic Impact Hammer Description: YZ70 Hydraulic vibratory Hammer Model Number:YZ-70 Power:23kgm Quick Details Piling Speed(m/min): Depend on soil condition Place of Origin:Zhejiang, China Brand Name:Yongan Weight:5000 Dimension(L*W*H):2417*685*2015 Eccentric Moment(kgm):23 Max frequency(rpm:1700 Centrifugal force(kN):650 Max Amplitude(mm):22