In many applications, concrete contractors have managed to ... “The problem with a big drum mixer is that the rubber edges of the blades wear out and then you end up mixing an extra bag just ...
Case in point, they are the original designer and manufacturer of the first automated mixer for lightweight concrete for aircraft ... you don't need to pull your big pump out.
Several users have noted that the mixer can handle one 80-pound bag of concrete, but simply isn't big enough or strong enough ...