Mixers that are Attached to Heavy Equipment and derive their power from the Equipment (Via a PTO Connection or Hydraulic Connection or other ways?). Hence the Attachment does not require the need for having its own Engine or Electric Motor. (Easier to Transport and Store as there are no Fuels involved).

Skid Steers and Tractor Cement Mixer Attachments are popular.

The Equipment has the ability to deliver the mix to the work zone. Perfect for difficult locations which are inaccessible via a Ready Mix Trucks?