Why is hydraulic power better than air power?
A. The main reason would be hydraulic power affords much more hitting power and control at the whiphead. The whiphead is the drive for the whips which dislodge of the hung-up material that is to be removed by impacting and digging loose. Air is compressible, so when it hits something, much of its energy is absorbed through compression of the air itself, instead of transferring the energy to what it hit. To try and overcome this problem, air whips are run at much higher rpm in an effort to generate more energy, but tends to make the whiphead dance or bounce around rapidly, spending more time in midair than actually knocking product loose. This also makes them hard to control and keep on task, working the spots that need attention. Hydraulic fluids are for the most part non-compressible, so when they hit something it transfers all of it energy to the object it hits. Hydraulic systems also run at higher pressures which means more torque (digging power) at all speed ranges. Hydraulic power
