B47C Paving breakerapplying:1,To pave and break concrete foundation installing engineering to break other hard things.2,Ningbo yongdun company is the national drilling machinery and pneumatic tools standardization technical committee member units,Website:http://www.nbydtools.com, through the ISO9001 quality assurance system and CE, MA qualified manufacturers. Products are widely used in mining, municipal construction, concrete building, breaking hard object and other projects.technical data:Overall length:550mmWeight:21.5kgCylinder D:47.6mmWorking pressure:0.63MpaImpact energy:26±10%JImpact power:0.67±10%KwBlows frequency:26±5% HzAir consumption:28±15% L/SAir pipe I.D:Φ19mm