Vibrator engine is used to consolidate cement and remove all the trapped air bubbles vibrator engineoptional engine:honda engine,robin engine,roben engine.optional vibrator head diameter:25mm,28mm,32mm,35mm,38mm,45mm,50mm,60mmlength of vibrator pipe:4-8m,can be made according to customer's requirement...Technical Specification ModelZE-1ZE-2ZE-3ZE-4ZE-5EnginePetrol, Honda GX160Petrol, Robin ...