The design of our 23R ACO is timeless: cast iron construction, with the latest technological controls for maximum operating efficiency. Flexible, reliable and built to last, the 23R has been serving roasters for generations.


  • 250 to 530 lbs. per batch
  • 4-5 batches per hour (nominal)
  • Up to 2,500 lbs./1,134 kg per hour

Features and Benefits

  • Modular design for fast installation
  • Space-saving footprint—significantly smaller than solid drum roasters
  • Batch size flexibility
    —200-500 lbs.
  • Recirculating system for energy efficiency
  • Automatic Clean Out (ACO) for product consistency and minimal maintenance
  • Stirflex™ cooler for effective cooling
  • Safety features to meet local code
  • Environmental controls


  • Convective heat-transfer technology for lower roasting temperatures and higher air flow
  • Patented perforated drum for consistent roasting*
  • Roast times between 3.5-15 minutes
  • Essential Panel™ for sequential control of entire process—from roasting to cooling and destoning—as well as maximum production and repeatability.

  2017 panel updates

  • 5-stage roasting sequence for accurate profile roasting
  • Optional USB memory device to store batch data
  • Upgraded HMI panel
  • VPN module with Internet capability
  • New Maintenance mode
  • New Preheat and ACO programs

Dimensions and Weight

  • Height: 13′-3″
  • Width: 6′-2″
  • Length: 25′
  • Weight: 16,500 lbs
  • Shipping volume (boxed):
    1,290 ft3

Patented Perforated Drum

Our proprietary perforated drum gives you a superior convective roast.

Beans are heated by the airflow through the drum resulting in better heat transfer through the bean and a more even roast. The perforated design also means greater batch size flexibility.