The 15 130 S-Tube pump features 7-in.-diameter cylinders and a 54-in. stroke that are designed to reduce pressure drop created by oversized pumps. It’s powered by a 247-hp Deutz engine that keeps piston face pressures below 100 bar. It also comes with 190cc Bosch Rexroth hydraulic pump and valve. A harsh-mix hopper and noise reduction enclosure are standard. Olin Engineering. 800-334-4362.