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OSS-Micro Single-Screw

Orbetron’s OSS-Micro feeder is specifically designed to feed free-flowing materials and some types of poor-flowing powders at rates of 5g/hr and up utilizing our stepper motor design. The OSS-Micro has a sanitary clamp design to remove the material hopper. The removable feed hopper makes it ideal for applications that require quick material changes. To make a material change, just remove the existing hopper and replace it with a new clean hopper. The OSS-Micro can be configured with or without material agitation. The OSS-Micro feeder can be easily integrated with gravimetric or volumetric controls, as well as installed separately or in a production line with multiple feeding devices.


  • Used for pellets and powders
  • Free-flowing
  • Stepper Motor 20 – 1,000 grams
  • AC/DC Motor 80 – 5,000 grams


  • Compact feeder and gearbox design
  • High modularity for easy dismantling and cleaning
  • Horizontal material outlet discharge
  • Tool-free change of the feeder screw
  • Applicable for single spiral and auger screws
  • All metal parts which are in material contact are aluminum
  • Motor configuration AC/DC, Stepper
  • Gearboxes in multiple configurations
  • Weight without accessories volumetric 5 lbs


  • Gravimetric and volumetric controls
  • Hopper extension modules
  • Special hoppers are available by request
  • Removable vertical outlet tube with the size of 2”
  • Silicon sealing
  • Gravimetric loss-in-weight batch
  • Gravimetric gain-in-weight
  • Gravimetric low-in-weight continuous
  • Volumetric continuous or batch
  • Ezi-Dock adaptation for material containment
  • Integration with OSB Series
  • Vertical Discharge
  • SS Configuration