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We are Manufacturer, Supplier, Exporter of Rubber Belt Vacuum Filters / Filtration Systems (Korubelt). Our manufacturing unit is situated in Pune, Maharashtra, India.

These Horizontal Vacuum Belt Filters help in efficient separation of the solids and liquid through filtering fabric / filter medium which moves synchronously on the rubber belt. The heavy duty rubber belt experiences vacuum suction via a fixed vacuum chamber which results in a water sealing structure allowing the slurry to provide an efficient dewatered cake.

Major applications include, but not limited to...
Mineral (FGD), Paints And Pigments, Pharmaceutical, Bio-technology, Petrochemical, Food And Food Processing, Fertilizers, Sugar, Distillery, Edible Oil, Coal (FGD Gypsum Filtration), Cement, Engineering, Metal Finishing, Oil Water Separation, Coolants, Textile Processing, ETP (Effluent Treatment Plants), STP (Sewage Treatment Plants) etc..

Rubber Belt Vacuum Filter


  • Highly suitable for large through puts, high porosity materials, minerals (FGD), dye-stuff etc.
  • Overcomes all disadvantages of all other vacuum filters put together.
  • Filtration takes place on an endless variable porosity filter cloth.
  • A thick rubber belt supports the endless filter cloth from below.
  • Slurry feed, gravity filtration, vacuum filtration, multiple cake washing, dewatering, cake discharge, cloth cleaning, alignment take place continuously and uninterruptedly.

Salient Features

  • Operations are truly continuous
  • Works in consonance with natural filtration parameters.
  • Gives extremely constant operational parameters.
  • No oceanic feed slurry movement
  • Least vacuum losses
  • No shearing and rubbing forces acting on the filter cloth


  • Highly suitable for solids with high porosity and Filterability.
  • High through puts are required
  • Fertilizers, minerals (FGD), various chemical industries, dye-stuff and many others.
  • Flue – gas desulfurization (FGD) plant slurry filtration for Thermal Power station.
  • Efficient filtration results in dewatered gypsum slurry, generated during the flue gas desulfurization (FGD) in the coal-fired power plant.
  • Ensuing high filtration efficiency, good air permeability through the belt and strong mechanical strength.
  • SSP (Single Super Phosphate) and DCP (Dicalcium Phosphate) slurry filtration of scrubber in chemical plants



The Filter consists of

Endless rubber belt
An endless rubber belt with traversing grooves drains the filtrate towards holes positioned along the belt. Synthetic plies encapsulated in the rubber part below the grooves serve to withstand the longitudinal stresses to which the belt is subjected.

Endless filter cloth
It retains the cake and moves together with the belt. Various MOC, porosity, weaving type ere. are available.

Vacuum box and wear belts
A vacuum box below the belt is mounted along the filter and collects the filtrate. through a manifold to the receivers. The box at its tops-de has two lips covered with low friction synthetic strip liners that seal through intermediate wear belts between the bottom side of the belt and the surface of the strips. Since the belt Is the most expensive part of the filter these endless narrow belts serve as sacrificial component that takes the wear between the surfaces, protects the rubber belt and secures against vacuum leaks.

Cake discharge end
Once the belt reaches the end of the vacuum box the cake drying portion of the cycle terminates and the cloth leaves the rubber belt. The cloth continues moving. changes direction over the discharge roll and the cake drops through a chute for further handling.

Filtrate Manifold
A filtrate manifold collects the mother and wash liquids to one or more vacuum receivers.




Cake wash arrangement
Rubber Belt Vacuum Filters
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