Technical specificationsWeight of main machine27kgOverall dimensions(L*W*H)746*315*229mmType of engineSingle cylinder, air cooled two strokesCylinder diameter*stroke of pistonΦ58*70mmRotation speed of engine≥2450rpmDisplacement of engine piston185cm³Type of carburetorhand needle valve, floatless typeIgnition systemcontrollable silicon, contactless systemDrilling speed (mean value of five holes)≥250mm/minDrilling hole diameterΦ28-42mmMax drilling depth6mFuel consumption≤0.12L/mTank capacity≥1.5literMixture ratio of gasoline and lubrication oil (in volumes)12:01Drill rod and breaker shankHex22*108mmRotating speed of drill rod≥200rounds/minClearance of spark plug0.5-0.7mm