ROTARY VACUUM PADDLE DRYER (RVPD)
Efficient Vacuum Drying for Powders, Slurries & Heat-Sensitive Materials
The Rotary Vacuum Paddle Dryer (RVPD) is a high-performance vacuum drying system designed for efficient drying of powders, slurries, pastes, filter cakes, and heat-sensitive materials. The specially designed rotating paddles continuously agitate the product while providing uniform heat transfer, resulting in faster drying, reduced processing time, and excellent product quality.
Manufactured by Dwaraka Sai Engineering Works, our RVPD is widely used in pharmaceutical, chemical, API, food, and specialty industries where gentle drying, high product recovery, and contamination-free processing are essential. Every machine is designed with precision engineering, robust construction, and customizable features to meet specific customer process requirements.
Capacity
Available from 10 Liters to 10,000 Liters
Material of Construction
The equipment can be manufactured in:
- Stainless Steel SS304
- Stainless Steel SS316
- Stainless Steel SS316L
- Hastelloy
- Mild Steel
- Other Special Alloys as per customer requirements
Key Features
- Vacuum Drying Technology
- Uniform Heat Transfer
- Continuous Paddle Agitation
- Low Temperature Drying
- Closed System Operation
- High Drying Efficiency
- Excellent Product Recovery
- GMP Compliant Design Available
- PLC / HMI Automation Available
- Easy Cleaning & Maintenance
- Energy Efficient Design
- Heavy Duty Construction
- Custom Engineered Solutions
Suitable For
The Rotary Vacuum Paddle Dryer is ideal for drying:
- Wet Powders
- Filter Cakes
- Slurries
- Pastes
- Granules
- Heat-Sensitive Materials
- Moisture-Sensitive Products
- Solvent-Based Products
- Pharmaceutical Intermediates
Why Choose Dwaraka Sai Engineering Works?
At Dwaraka Sai Engineering Works, we manufacture high-quality Rotary Vacuum Paddle Dryers designed for maximum drying efficiency, uniform heat transfer, and long service life. Every machine is manufactured using premium materials, precision engineering, and strict quality standards to deliver reliable performance in demanding pharmaceutical and chemical processing applications.
Our engineering team offers customized drying solutions based on customer process requirements, ensuring optimum productivity, energy efficiency, and operational safety.
Frequently Asked Questions (FAQ)
1. What is a Rotary Vacuum Paddle Dryer (RVPD)?
A Rotary Vacuum Paddle Dryer is a vacuum drying system that uses rotating paddles to continuously agitate the product while applying indirect heat, ensuring fast and uniform drying of powders, slurries, filter cakes, and heat-sensitive materials.
2. How does a Rotary Vacuum Paddle Dryer work?
The wet product is loaded into the drying chamber where rotating paddles continuously mix the material. Heat is supplied through the jacket while vacuum lowers the boiling point of moisture, allowing efficient drying at low temperatures. The dried product is then discharged through the outlet.
3. Which industries use Rotary Vacuum Paddle Dryers?
RVPDs are widely used in pharmaceutical, API, chemical, agrochemical, food processing, nutraceutical, herbal extraction, and specialty chemical industries.
4. What capacity range do you manufacture?
We manufacture Rotary Vacuum Paddle Dryers from 10 Liters to 10,000 Liters. Custom-built models are also available to suit specific customer requirements.
5. Can the equipment be customized?
Yes. Every Rotary Vacuum Paddle Dryer can be customized based on capacity, material of construction, heating system, automation level, and process requirements.
6. Is PLC automation available?
Yes. We offer manual, semi-automatic, and fully automatic PLC/HMI-based control systems for enhanced process monitoring and operational efficiency.
7. Is the equipment suitable for heat-sensitive materials?
Yes. The vacuum drying process allows moisture to evaporate at lower temperatures, making the RVPD ideal for drying heat-sensitive and moisture-sensitive products without affecting product quality.