Quick Details Place of Origin: Shaanxi China (Mainland) Brand Name: Kumar Model Number: B47 Type: Air Hammer Average Air Consumption: 28 L/S Maximum Torque: 30 No-Load Speed: 123 Shank size(mm): 25*108 Air Pipe Inner Dia.: 19mm Weight(kg): 21.5 Packaging & Delivery Packaging Detail: Standard Export Package / Wooden Case Delivery Detail: Within 3 days after receipt of your confirmation Specifications 1.Druable Parts, Good Performance ,100% original 2. ISO90001 & CE Certificates 3. Destroy & Crashing in hard rock, concrete. B47 Breaker APPLICATION: 1. Portability , Durability , High Efficiency and Speedy. 2. To pave and break concrete foundation,rock and asphalt. 3. Ideal machine for mines , bridges , roads , water piper and electricity grids. INSTRUCTION: B47 Breaker is a pneumatic instrument with international technology , compressed air as its power, The compressed air is distributed alternatively through the distributing valve into either end of the cylinder assembly ,so that the hammer inside is made to carry on a reciprocal motion which impacts the shank of the steel chisel by the tappet drives the chisel into the concrete foundation and makes them split into huge pieces. SPECIFICATION: Model B47 Weight(kg) 21.5 Length(mm) 550 Air consumption(L/S) 28 Impact Frequency(Hz) 21 Impact energy(J) ≥76 Bit Fixation style Lock/Unlock Shank size(mm) 25*108 Air tube inner Dia.(mm) 19