B87C breaker is a pneumatic instrument manfactured with the mature technology of America Gardener Denver Corporation . It is more powerful in breaking ferroconerete , rocks and durability , It suits the requirements of breaking outsized . super-thick and hard objects . It is ideal machinery for the substructural construction of mines , bridges ,roads and civil infastructure. Model: B87C Weight: 39 kg Length: 686 mm Working air pressure: 0.63 Mpa Percussive Energy: 100+-10% Percussive Power: 1.8+-10% Percussive Frequency: 1200 b.p.m Air Consumption: 55+-5% Air inlet size: 3/4 Bit Fixation style: Lock/unlock Bit head size:1-1/4x6