There isn't an Essick 12-cubic foot (340 liters) plaster/mortar mixer from Multiquip that doesn't meet your needs.
Mixes up to 12-cubic feet (340 liters) of material Driven by a 5-hp 230/460V single-phase electric motor Hydrauic drive mixes larger, lower slump loads Axle springs for less bounce, less sway Easy accessible controls for paddle and dump engagement