The upgraded mixer/pump has a closed-loop hydraulic circuit that delivers speed and torque to mix dense material in less than two minutes. The hopper handles up to 2,500 lb of material, and its high-speed hydraulic agitator keeps materials blended as the materials flow to the pump. The unit’s 3-in. swing tube piston pump operates with up to 2,200 psi. Blastcrete Equipment Co.