The “Rockmaster” is powered by a 68 hp (51 kW) continuous Perkins Diesel Engine. This best-in-class power is the basis for the pump’s versatility. It can be used to pump rough concrete mixes (30 yds/hour) as well as shotcrete. (A30HP recommended for higher pressure applications). The A30 features an “Open- Loop” hydraulic system, a large fuel tank, and REED’s Can-Bus Solid State Cycle Control.