Japan Platform for Redesign: Sustainable Infrastructure (JPRSI)

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Multi-disc type screw press dewatering machine

Technology / Service Summary

With our original unique VOLUTE technology, the sludge dewatering process got much easier than ever comparing with using the other sludge dewatering systems.


Customers shall use VOLUTE dewatering press to dewater sludges generated from every watar and wastewater treatment process in municipal and private, and it is capable of dewatering the sludge regardless of its type of treatment process; such as Biological, Chemical, Flocculating sedimentation, Dissolved air flotation and others.


VOLUTE is structured with a filter element that consists of two types of Rings: a Fixed Ring and a Moving Ring; and a screw that thrusts the filter element and transfers and pressurizes the sludge. The gaps between the Rings and the screw pitch are designed to gradually get narrower towards the direction of sludge cake outlet and the inner pressure of the filter element increases due to the volume compression effect, which thickens and dewaters the sludge. This mechanism allows VOLUTE dewater sludge while automatically self-cleaning the filter mesh. This enables stable and constant dewatering without depending on flush water for clogging prevention.

Special feature:
Minimum cleaning water, Smaller electricity, Low vibration, Smaller noise, Available for thin sludge (from TS 0.2%), Smaller body, Good at oily sludge and Super easy operation (no need operators).


・Thanks to VOLUTE's self-cleaning system, the water volume to clean is extremely small. Comparing with Belt press which requires clean its filter mess during operation, customers can save water consumption as approximately100 times.
・Regarding the main body of dewatering called Cylinder, it rotates about 2~3 times per a minute. That can save power consumption as well as water. Comparing with Centrifuge decanter which works in high-speed rotation, customers can save power consumption as approximately 20 times .

Controlled Substance


Applicable Regions / Countries

  • Japan
  • Southeast Asia
  • Central/South Asia
  • China/ East Asia
  • Middle East
  • Africa
  • Oceania
  • Europe
  • Central/South America
  • ASEAN countries

    Indonesia,Cambodia,Singapore,Thailand,Philippines,Brunei Darussalam,Viet Nam,Malaysia,Myanmar,Lao PDR


We have installed more than 5,000 units of VOLUTE deawatering press in 77 countries wordwide.

Algeria, American Samoa, Angola, Argentina, Australia, Austria, Bangladesh, Belgium, Bolivia, Bosnia and Herzegovina, Brazil, Cambodia, Canada, Chile, China, Colombia, Costa Rica, Croatia, Czech Republic, Denmark, Dominican Republic, Estonia, Finland, France, French Polynesia, Germany, Greece, Guatemala, Hungary, India, Indonesia, Ireland, Italy, Japan, Kazakhstan, Kuwait, Latvia, Lithuania, Luxembourg, Macedonia, Malaysia, Mali, Mexico, Moldova, Myanmar, Netherlands, New Zealand, Nigeria, Norway, Oman, Papua New Guinea, Peru, Philippines, Poland, Portugal, Qatar, Romania, Russia, Singapore, Slovakia, Slovenia, South Africa, South Korea, Spain, Sweden, Switzerland, Taiwan, United Republic Of Tanzania, Thailand, Ukraine, United Arab Emirates, United Kingdom, United Kingdom, United States of America, Uzbekistan, Vietnam and Zambia.

Related SDGs Goals

  • 5. Gender Equality
  • 11. Sustainable Cities and Communities
  • 12. Responsible Consumption and Production
  • 14. Life Below Water


If you have any ongoing or coming projects, we do appreciate for you to click the link below and fill in the inquiry form.
A member of our team will contact you to discuss the details of yor project and provide appropriate products and services.

Inquiry form: https://en.amcon.co.jp/contact/other/

Multi-disc type screw press dewatering machine

Youtube Videos

AMCON VOLUTE™ Dewatering Press

VOLUTE Dewatering Press Process Flow