Multi-Disc Dehydrators Tsurumi JD Series

Multi-Disc Dehydrators Tsurumi JD Series feature unitized construction that integrates all necessary accessories, and can be more easily installed and are very compact compared with belt presses and centrifugal dehydrators. The dehydrators boast lower noise, reduced energy consumption, and require less water for flushing, thus providing an economical and eco-friendly solution to dehydration applications.


Multi-Disc Dehydrators Tsurumi JD Series

Multi-disc dehydrators utilize both gravity filtration and compression dehydration systems. The “filtering rollers” consist of alternating thin metal discs and resin discs, and are arranged in two (upper and lower) tiers. The coagulated sludge is fed between the rollers and dehydrated by compression while being conveyed toward the sludge outlet by the rotating action of the rollers. The dehydrator main unit requires lower motor output and the filtration surface consists of a ultiplicity of self-cleaning capable discs, and never clogs. Thus, the dehydrator can be used continuously. Multi-disc dehydrators can cope with a wide range of sludge concentrations, and also stably dehydrate sludge that contains high oil content or organic sludge that contains high quantities of inorganic substances.


  • Excess sludge from biological processes
  • DAF froth
  • Various types of mixed sludge
  • Coagulated sludge


  1. Energy-saving & Compact Design
  2. Automatic Operation
  3. Self-cleaning Mechanism
  4. Capable of Treating Oily Sludge
  5. Capable of Treating Low to High Concentration Sludge
  6. Small Amount of Flush Water and Low Maintenance
  7. Inhibition of Secondary Pollution

JD Flow Sheet






Motor Output


Width of Filtering Rollers Length Width Height Dry Operating
JD-500 12 - 40 1.65 500 2207 1035 1827 1100 1600
JD-750 18- 60 1.85 750 2362 1285 1829 1300 1970
JD-1000 24 - 80 2.6 1000 2341 1535 1829 1500 2370
JD-1500 36 - 120 1.4 1500 2600 2180 2045 1640 2320
JD-2000 48 - 160 1.75 2000 2800 2680 2045 1890 3140
  • The treating capacity will vary depending on the characteristics and concentration of the sludge. Typical treating capacity per 1000mm wide filtering roller are 40 kgDS/h for excess sludge, 50 kgDS/h for wastewater and sewage treatment sludge, and 60 kgDS/h for DAF froth and livestock waste sludge. It is recommended to select a model with adequate allowance.
  • The motor output means the total motor output of the motors mounted in the unit, but does not cover the motor output of the sludge supply pump, polymeric coagulant mixing equipment, etc.
  • The sludge feed pump, chemical injection equipment, chemical injection pump, etc. outside the JD dehydrator are not included.

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