IQUIP IHC S90 hydro hammer IQUIP IHC S90 hydro hammer Operating weight:4900kg(10800 lbs)Impact energy:9000J (6630ft – lbs)Blows per minute:300 – 480BPM(5 – 8Hz)Carrier weight range:45 – 70 tons.Tool diameter : 175mm(6.89inches)Oil flow range: 340ipm (61 – 90gpm)Operating pressure range: 160 – 180bar (2,320 – 2610psi)