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Circle Feeder

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  • Circle Feeder Technologies

  • How It Works

  • Features & Benefits

  • Design Options

  • Applications

  • Literature

  • Find your solution today!

Circle Feeder Technologies

In 1997 LCI Corporation formed a partnership with Yoshikawa Corporation. As a result of our partnership, LCI is the exclusive supplier to the process industries in North and South America for Yoshikawa's unique, patented Circle Feeder, the best solution for many difficult-to-flow solid materials.

Clients in the Americas who are interested in evaluating the Circle Feeder are welcome to contact LCI to discuss your application, obtain pricing, and set up trials at the LCI Test Center.

  • Prevent Bridging
  • Achieve Mass Flow
  • Prevent Ratholing
  • Low Noise
  • Prevent Segregation
  • Low Maintenance

How It Works

Preventing Ratholing and Bridging

The Circle Feeder has a variety of features but widely known for its ability to prevent material arching, bridging, and ratholing. The large open inlet exceeds most materials’ critical arching diameter, preventing bridging and ratholing. Even high viscous material can be fed through the feeder and discharger smoothly. Its unique construction fulfills allows for quantitative dosing steadily and evenly. The Circle Feeder can be manufactured with several outlets for “one to multiple” feeding, which saves on the amount of equipment, space and maintenance costs. The feature: first-in first-out, last-in last-out, free from bridging and segregation, compact construction, easy maintenance.

Segregation is the uneven distribution of components in powder material that occur during flows of the material due to differences in physical properties of its components. Segregation is difficult to check visually, and the adverse effects resulting from segregation during storage and handling of powder are diverse. Circle Feeder is the premier choice feeder that can prevent the segregation during mass flow discharging.

Circle Feeder prevents ratholing and bridging of materials



Features & Benefits

  • Consistent discharge rate
  • The large inlet exceeds most materials' critical arching diameter, preventing bridging. No ratholing!
  • The slow rotating vanes move the material radially from the center to the outlet ensuring "first in -first out" mass flow
  • Slow rotating parts insure gentle product handling and minimum downtime
  • Turndown ratio up to 10:1
  • Low maintenance
  • Both discharging and metering functions

Design Options

Circle Feeders can be custom designed with the following options:

  • Multiple discharge ports with manual or auto slide gates
  • High temperature capability
  • Special coatings for abrasive materials
  • Explosion proof motors
  • High moisture capability
  • Sanitary or GMP
  • Loss-in-weight control
  • Drive configuration ( vertical or horizontal)
  • For high bulk density materials
  • Heavy duty reducers for high bulk density materials



  • Chemical intermediates
  • Inorganic salts
  • Polymer flakes and powders
  • Soap powders and ingredients
  • Pigments
  • Resin flakes
  • Fertilizer components
  • Ink


  • Com, rice, potato starches
  • Com, soybean, wheat flours
  • Residual vegetable cuttings and pulp
  • Minced meat
  • Seed hulls and components
  • Fermented products
  • Seasonings


  • Carbon black
  • Sewage sludge
  • Metallic powders
  • Recycled plastic/paper flakes and grind
  • Cellulose derivatives
  • Fibers
  • Paper pulp
  • Cement


Find your solution today!

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