Feature 1.High quality polyurethane bellow accepts larger compacting force, offer a reliable lubricating system. 2.Noneed to mix fuel and oil, easy starting, low-noise operation,lowmaintenance and reduced fuel consumption comparing to 2-strokeengine. 3.Heavy shock mount system to reduce hand-arm vibration and improve comfort 4.Rammer shoe made of steel plate with wooden insert offers economical usage 5.Special protective frame for engine, prevents any possible damage on tough job siteModelHP-RM80HCEnginePetrol, Honda copy HP200F TypeofcombustionAir-cooled,singlecylinder,4-strokeRammingforce10000NLeapheight40-65mmAdvancingspeed10-13m/minRammingfrequency450-650times/minRammingplatesize330*310mmOperationweight78kgShippingsize630*540*970mm Tamping Rammer,Rammer,punner