The vibratory force is generated by the rotating centrifugal weight driven by gasoline engine .This can make the plate work to impact the ground hard .It is a perfect machine used to impact the foundation while building road or some square ground.Different brand of gasoline engine are available .It features a lot of advantages as following :1)hight standard steel material for the plate2)steel structure for the vibrating device .3)long-time life service due to adoption of rolling cylinder NSK bearing4) CE , and GS certificate approved by TUV institution5) installed with wheel and folding handle ,easy to move and pack6) plastic mat can be installed at the bottom especially for working on clay tile stone .