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Decanter Centrifuge

Product InformationDecanter Centrifuge

Optimal separation of solids and liquids
  • Excellent Screw Decanter-Type Centrifugal Dehydrator, the Most Univesal Mechanical Separation Equipment

Technology Summary

  • In the case of separation of the liquid and solid mixture and sludge with a high ratio of solids, solids and moisture can be effectively separated/dehydrated via centrifugal dehydrator’s continuous process
  • With multiple-step control of speed difference, the percentage of the water content of discharged solids can be maintained at a steady rate; it can actively respond to the change of the density of the sludge input, separating fine particles from suspension via high centrifugal force.
  • SENTEC Technology’s centrifugal dehydrator can be flexibly applied to different industries. It can handle a solid density of 0.5~35%, and it is customized for the specific separation process for dehydration of sludge with a density as low as 0.02% to as high as 50%.
  • It can retrieve microparticles without filter cloth(screen) and other filter assisting devices via dehydration/classification/wet classification/solid classification/coagulant injection.

Applicable Area

  • Dehydration Process for Processing Sewage Sludge Waterwaste, Livestock Wastewater, Excrement
  • Dehydration of Sediment Sludge from Different Wastewater
  • Synthetic resins / Chemical Products
  • 2-Phase/3-Phase Modular Centrifugal Separation System Applied


  • Special screw blade processing method equipped with the prior discharge of supernatants and the through tube for infranatants secures filtrates with high refinement effect to promote maximization of dehydration efficiency.
  • When dehydrating digestive sludge, it discharges cake with 75~78% water content that is easy to discharge, making it easy for transfers.
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Product Features and Operation

  • Clear Separation of Liquid and Solid by Reflecting Optimal Design for Input
  • Consistent Separation Result by Automatic Control of Speed Difference and Local Contorolalble Dam Plate.
  • Increased Filtrate Purity by Prior Discharge of Supernatants
  • 24 Hours Continuous Automatic Operation

Centrifugal Dehydrator Maintenance

  • Processed surface for ideal solids discharge prevents abrasion and corrosion (Conclusion of the optional bushing is available).
  • Durability Increased by Exclusive Use of High-Quality Corrosion and Acid Resistance Stainless Steel
  • Client-Requested Various Lubricating System, Oil Supply to Bearing is Available for Activation
  • Dust-Protection System for Optimal Operating Condition

Safety Security/Saniatoion

  • Overload and Blockage Protection by Controlling Speed Difference of the Scroll according to the Load of the Drive
  • Closed System to Prevent Scattering of Odor, Pollution Discharge Prevention
  • Temperature Damage Prevention Control Program by Monitoring Driving Speed/Speed Difference/Temperature
  • Automatic Cleaning System via CIP

Outside View and Standard Specifications

Outside View

Standard Specifications

Model No. Treatment Quantity
Revolution Per Minute
Motor(KW) Dimension
Main-Drive Back-Drive
ST-25P 1~2 4,800 5.5 2.2 2.2 x 0.7 x 0.9 1.2
ST-35S 3~6 3,600 11 3.7 3.2 x 0.8 x 1.1 2
ST-40S 6~8 3,300 22 5.5 3.7 x 0.9 x 1.2 2.8
ST-45S 8~15 3,200 30 7.5 4.0 x 1.0 x 1.3 3.5
ST-50S 15~20 2,900 37 11 4.5 x 1.1 x 1.8 4.5
ST-55S 20~30 2,800 45 11 5.0 x 1.2 x 1.9 5.5
ST-60S 30~40 2,600 55 15 5.2 x 2.2 x 2.0 6.0
ST-70S 40~50 2,500 75 15 5.5 x 2.5 x 2.5 6.5