Compost Windrow Turners

The Aeromaster Difference


Compost Windrow Turner

Philosophy Behind the Turner

Compost windrow turning equipment mechanisms will correlate directly with the composting philosophies recognized or advocated by the manufacturer. As indicated throughout this site, Midwest Bio-Systems approaches composting from a “soil-plant” point-of-view. We endeavor to cultivate compost and its related commodities based on our commitment to sustainable agriculture. We do not separate the two.

Other compost equipment providers often approach compost quality from a “What’s not in it?” interpretation of quality (pathogens, weed seeds, heavy metals, etc.). Attaining minimum government safety standards is their goal. Beyond this, because size-reduction is one of the results of composting, they often measure success by the extent to which they can make an organic waste stream disappear. Their equipment is therefore designed to achieve those purposes.

This is a significant difference from determining quality by:

What the profile of the microbiological assay shows regarding the finished compost product (diversity of species, enumeration of microbes, and aerobic:anaerobic ratios)?

  • How soil health is improved
  • How crop yield is increased
  • How plant health is enhanced
  • How production costs are reduced while simultaneously generating additional income.


Combining the Advanced Composting System (ACS) with Aeromaster compost turners and other equipment, organic inputs are broken down quickly and thoroughly:

— Drum and tine profile and speed maximize the exchange of O2 and CO2
— Moisture control system leads to ideal temperatures at every stage of the process
— Recipe management program provides guidance on feedstocks to supplement the primary inputs.


The speedy conversion of organics to compost allows more processing in a given space.

Is Midwest Bio-Systems the only turner builder which embraces this composting philosophy? No. The key questions then among turner manufacturers sharing this philosophy are ones of value, durability, and service. Contact us for this value, durability, and service information.

  • See why using an Aeromaster Compost Windrow Turner is better:
    • vs. static pile composting
    • vs. manure spreading
    • vs. using a loader
    • vs. in-vessel composting
    • vs. using a bioreactor
    • vs. using non-Aeromaster equipment
    Aeromaster Compost Windrow Turner

  • Independent Comparison Results

    From: Meristem MDirect, November 7, 2002
    AgTech Centre in Lethbridge, Alberta, Canada

    The AgTech Centre Manure Management Project conducted tests comparing seven windrow turners over three years at five sites with multiple compost windrows.

    Equipment tested included:

    • Standard front end loader
    • Allu SM 2-12 bucket
    • Scat 481
    • Wildcat FX700
    • Earthsaver CT-12-PTO
    • Brown Bear PTO PA35-10.5
    • Aeromaster PT-120


    • Least horsepower required: Aeromaster PT-120
    • Mass and volume reduction: all turners did well in mass reduction
    • Quickest turn of compost windrows, moving most tons per hour: Aeromaster PT-120
    • Organic matter content: Aeromaster, Brown Bear, and Earthsaver achieved high organic matter levels


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