CentrifugationCentrus / N

N セントラス

Dehydrate crystalline down to low water content!


Centras ™ is a centrifugal filter consisting of a horizontally aligned conical basket and a discharge screw. A metal screen for solid separation is mounted inside the basket. Rotation of the basket produces high centrifugal force for liquid-solid separation. Slurry casted into the basket is instantaneously dehydrated by the high centrifugal force. Solid particles remaining on the screen are discharged with the discharge screw that is spirally shaped.
This model is also applied to washing particles. Impurities on particles on the screen are washed out by spraying clean water, and the liquid is separated from the particles during they are transported on the screen. Thus, it has a function of simultaneous dehydrating and washing off impurities such as sodium glutamate, amino acids, and dissolved salts. It is effective for processing crystals and pellets of foods and chemicals. Thus, it is ideal for dehydrating and cleaning precipitated crystals and resin pellets, and polyurethane pellets of 0.1mm or larger.


1. High-speed dehydration with high centrifugal force
The metal screen filtration with high centrifugal force enables efficient dehydration in a short time, about 1 second. In case when a salt (NaCl) is dehydrated, the finished moisture is 0.5-2%. Since the surface moisture of the crystal is thoroughly removed, drying process can be eliminated or heat load for drying is reduced.
2. Highly elastic resin chips are dehydrated
Its screw discharging mechanism produces almost no compression on resin chips, so that even if they are elastic, they are not compressed or agglomerated. It is easy to dehydrate highly elastic resin chips that cause clogging in other types of centrifugal filters.
3. Compact design and saving space and energy
This centrifugal filter is quite compact and highly productive, since the hydration finishes in an extremely short time. It is an ideal centrifugal filter for mass processing. Structure of the conical basket improves crystal discharging and load of transfer. Thus, it brings energy saving in drive power.
4. Easy maintenance and low running cost
Disassembly and assembly for the maintenance are easy, since the mechanical structure of the parts is small and unitized. Maintenance work is performed on site, ending up to reducing maintenance costs.

Structure and Mechanism


This filter mainly consists of rotating parts, a basket, a discharge screw, and a metal screen. Stock solution or reactor slurry is supplied through the feed pipe to the center of the screw rotating at high speed. The supplied slurry is transferred onto the screen, where the liquid is instantaneously separated from the solids on the screen. The solids are continuously conveyed by the discharge screw to the solid outlet, and then discharged.

Application example

Food stuff Organic chemicals Inorganic chemicals
・Salt ・Nylon chips ・Ferrous sulphate
・Monosodium glutamate ・Fluorine rubber ・Ammonium sulphate
・Crushed corn meal ・Polystyrene ・Copper sulphate
・Cellulose ・ABS resin ・Sodium sulphate
・Amino acids ・SA resin ・Sodium formate
  ・Polycarbonate ・Sodium carbonate
  ・Polyurethane resin ・Soda metasilicate

※In addition, it is suitable for solid-liquid separation of particles of 0.1 mm or more. Please feel free to contact us if you have any questions.

Standard Specifications

Centrus lineup
Model Nominal
Motor power Centrifugal
Main Lubricating Length Width Height
N200 0.5 〜 1.5 3.7   1600 225 985 990 915
N250 1 〜 3.5 5.5   1600 560 1175 1135 1060
N320 3 〜 7 7.5   1600 700 1295 1165 1155
N400 5 〜 12 15 0.4 1600 1100 1690 1200 1425
N520 10 〜 25 30 0.4 1200 2000 2160 1540 2160
N700 20 〜 50 45 〜 55 0.4 1200 3000 2480 2160 2140