What is the difference between a concrete and a plaster mixer?
A concrete mixer is used to mix thick mixes that may contain rocks, sand and cement better called concrete, Concrete may be used for setting posts, pouring concrete foundations and slabs. Any mix that uses rock or other course aggregate is best prepared in a concrete mixer.
The plaster mixer, or mortar mixers is used to mix exterior stucco, interior plaster or mortar for brick, block, floor tile, etc., and any mixes that “do not contain rock, gravel or any other aggregates”. Many contractors use Concrete Mixers to mix mortar for brick or block, but we recommend a mortar mixer for this type of mixes.