Environmental Products Line
We believe that a healthy environment is a key point for the future of our planet. That’s why at OKAWARA MFG we are not only committed to achieve customer’s satisfaction but also to design equipments that will help make a difference to the environment.

Rotary Dryer with a Disintegrator


This dryer is intended to stabilize, detoxify, reduce and recycle sludge and wastes.

Having over 80 years of expertise in the manufacture of drying equipments, we developed the Sludge Dryer for the recycling of sludge from waste water treatment process, active sludge, coagulated sedimentation sludge, human waste, sewage, water purifying plants as well as residual waste components. The Sludge Dryer features a disintegrator in the rotating drum which improves the drying efficiency and produce a quality granular product. We are very honored to have being able to supply more than 2,000 units of the Sludge Dryer so far.


  • High performance in a small unit
  • Energy-saving
  • Wide application
  • Flexible to evaporation rate fluctuation
  • Easy operation and maintenance
  • Quality product


  • Inorganic substances
  • Calcium carbonate, calcium molybdate, lead-refining material, lime stone, iron ore, steelmaking byproduct, precipitated copper, iron oxide, ferrite, manganese oxide, manganese dioxide, manganese sulfate, copper sulfate, silica sand, glass powder, talc, granulated lime, kaolin, sodium siliceous fluoride, sodium fluoride, ortho sodium silicate, potassium titanium, potassium phosphate, active white clay, iron hydroxide, copper hydroxide, aluminum hydroxide, silicon carbide, anhydrous sodium sulfate, aggregate, soil and stone, refractory material, lime, insulation material, culture media

  • Food products, etc.
  • Instant bouillon, bread crumbs, orange skin, animal feed, fertilizer, pet foods, starch waste, soybean curd waste