Sun-Mar 400::Compostermart - Shop composters, compost bins, and compost supplies

The diagram shows how material moves into and along the outer drum. A scoop on the inner drum (not shown) collects material and pushes it along the inner drum, exiting through the output port.

The Sun-Mar 400 is a big time compost tumbler that will make short work of the organic scraps you put in.  This is one of the few tumblers that features the patented Autoflow system which is designed to push the most processed compost out first so you aren't stuck with undigested parts in your batch.  When you're ready to take compost out, simply remove the breather cap, and turn the crank.  You'll get the ripest compost right away; No digging through unprocessed bits.  Optional wheels are included so you can move the 400 easily across hard surfaces.  The nice green color allows the Sun-Mar 400 to blend in with garden settings.