SK4000 Dryer

SK4000 Vacuum Rotary Dryer

Rotary vacuum dryers offer clean, simple and effective method of drying wet cake, powder and even slurry. Labor and energy costs are minimal
compared to tray dryers and product losses during handling are also negligible. Additionally valuable organic solvents can be conveniently
condensed and recovered.

Working Principle

The drying in a rotary vacuum dryer is a batch operation under vacuum. It is possible to dry heat sensitive materials at well below boiling points of
water and solvents. Drying time depends on material being dried, amount of solvent or water to be removed, desired final moisture
content, permissible jacket temperature etc.

The dryer is available in sizes ranging from 100 liters to 20,000 liters gross volume. The volume of wet material loaded into the dryer is usually restricted to 40-45% of gross volume.


  • Valuable organic solvents can be conveniently condensed and recovered
  • Labour requirement is minimum and product losses during handling are negligible provided
  • The agitator is usually the hallow cylinders with hollow arms this allows a considerable increase in heating surface are there by reducing the drying time
  • Low temperature drying under vacuum makes them more suitable for heat sensitive materials to maintain the quality
  • The Expensive solvents can be almost completely recover through a suitable Condenser & Vacuum Receiver
  • As a heating media we can used Thermic Fluid, Steam or Hot Water. When hot water is used for heating it can be electrically heated when steam is not available
  • The rotary parts are slow in rotating that ranges from 5-15 RPM. The drying done in a Rotary Vacuum Dryer is a form of batch operation