Stock #2865-1
1 In Stock
Conical Screw Vacuum Dryer
Specification
Description
A Conical Screw Vacuum Dryer is a batch vacuum dryer used for gentle, efficient drying and mixing of sensitive, pasty, or powdery materials—especially when low temperature, uniform drying, and minimal shear are required.
It features a conical vessel with a helical screw agitator that rotates and lifts material upward while the entire screw assembly slowly rotates around the vessel axis. This dryer is commonly used in pharmaceutical, chemical, food, and biotech industries.
The Consudry vertical conical screw vacuum dryer:
- Uses vacuum to dry products at low temperatures,
- Has a conical shape that promotes natural flow and discharge,
- Uses a helical screw for gentle mixing and efficient heat transfer.
| Component | Function |
| Conical vessel | Sloped design enhances discharge and reduces product buildup. |
| Screw agitator | Gently lifts and tumbles material upward. |
| Orbiting arm | The screw is mounted on an arm that slowly rotates around the vessel’s central axis (also known as “revolute rotation”). |
| Heated jacket | Provides indirect heat to the vessel walls. |
| Vacuum system | Lowers the boiling point of moisture or solvents. |
| Condensation unit | Recovers solvents or vapors safely. |
| Bottom discharge valve | Full discharge with minimal residue, aided by gravity and screw motion. |
- Loading: Wet or solvent-laden product is added to the conical vessel.
- Vacuum & Heating: A vacuum is applied while heat is delivered through the jacket.
- Mixing: The screw agitator lifts product from the bottom and spills it gently downward; the rotating arm ensures all areas are covered.
- Drying: Moisture or solvent evaporates and is drawn off via vacuum and condensed.
- Discharge: The conical shape allows easy, complete discharge through the bottom outlet.
- Gentle mixing – ideal for fragile or shear-sensitive materials.
- Highly efficient drying – excellent product-surface contact with minimal dead zones.
- Low temperature operation – perfect for heat-sensitive compounds.
- Excellent discharge – conical shape + gravity = nearly complete emptying.
- Closed, cleanable system – GMP-ready, CIP/SIP optional.
- Scalable – available from lab-scale to full production size.
- Pharmaceuticals – APIs, intermediates, biologics.
- Fine chemicals – dyes, catalysts, enzymes.
- Food ingredients – flavors, extracts, powders.
- Biotech materials – proteins, fermentation products.
- Specialty powders – resins, ceramics, additives.