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Powder and Granular Material Feeder,
Circle Feeder® Registered trademark in 45 countries

Powder and Granular Material Feeder,
Circle Feeder® Registered trademark in 45 countries

Test Facility

YOSHIKAWA sees no limit to the possibilities.

Powders can be extremely difficult to handle. There are countless factors in powders that can cause problems, including differences in properties arising from production locations and processes, changes in characteristics and cohesion caused by humidity, varieties in shape and bulk density, as well as mixed products of different powders having unique characteristics. 

Changes in characteristics that are particular to each feeder or the shape of the hopper are also important factors to be considered.

At Yoshikawa, we provide a variety of feeders, hoppers and measuring instruments to carry out more than 100 tests yearly, using the actual powdered materials to be fed, to determine the ideal feeder specifications.

Testing Environment

  • Test Room  327 square meters
  • Feeders and hoppers
  • A wide variety of feeders, from 100 to 2000 mm in inlet diameter, are available for testing. 
  • Batch measuring unit
  • Loss-in-weight feeding test equipment
  • Flocculant dissolution unit 
  • Local dust collector

We also accept inquiries by phone or fax.

Phone inquiry hours:
8:30 a.m. to 5:00 p.m. Japan time (except Saturdays and Sundays)
Fax inquiries can be received at any hour.