The Excalibur Hydra uses one 37HP diesel power plant for both the pump & mixer. The Excalibur Hydra uses an Automatic Self-Compensating "Smart System" to automatically adjust hydraulic oil flow to save fuel and reduce equipment wear & tear. The equipment uses a high efficiency oil system to power the hydraulics and reduce maintenance costs. The equipment has fingertip speed control for both pump and mixer located on the side of the unit over an infinite operating range. No more manual changing of gears as speed change is as simple as a turn of the dial. With a completely hydraulic system, the equipment maintains maximum horsepower throughout various RPM levels giving you the ability to pump and mix even the toughest materials. A full spout Powermix 1010 mixer with right-hand dump is utilized to eliminate splash and reduce jobsite cleanup.