Concrete Mixer (9 CF) September 2, 2020 | No Comments Specifications 9 CF Mixing Capacity Heavy-duty tubular steel frame with forklift pocket. Rugged 14 gauge steel engine cover resists vibration. Steel drum. Spring suspension standard for less bounce, sway. Power Source – Gasoline 5.1 HP @ 3600 RPM Spec Sheet (PDF) Categories: Concrete & Masonry, Equipment Rental