Vacuum Tray Dryer

Able Engineers Private Limited manufactures Vacuum Tray Dryers (VTD) designed for drying heat-sensitive materials that may decompose, oxidise, polymerise, or deteriorate at higher temperatures. A Vacuum Tray Dryer is widely used in Herbal Extraction Plants, Pharmaceutical Plants, Chemical, Nutraceutical, and Food Processing industries for controlled moisture removal under vacuum conditions.

The Vacuum Tray Dryer (VTD) operates at reduced pressure, which lowers the boiling point of moisture and solvents present in the material. Consequently, the equipment can dry temperature-sensitive products at relatively low temperatures. This makes it suitable for materials that require careful handling during the drying process.

Able Engineers Private Limited manufactures industrial Vacuum Tray Dryers with a focus on efficient heat transfer, reliable operation, and product protection. The equipment can also support sterilisation before the drying process, depending on the system configuration. Its closed-chamber design helps prevent unwanted external matter from entering the product during normal operation.

Working Principle of Vacuum Tray Dryer (VTD)

The Vacuum Tray Dryer works on the principle of vacuum drying and conductive heat transfer.

First, operators spread the material evenly across the trays and place them inside the drying chamber. Next, they close and seal the chamber door to maintain vacuum conditions. A vacuum pump then reduces the pressure inside the chamber.

Meanwhile, steam or another suitable heating medium passes through the jacket and heated shelves surrounding the trays. Heat transfers to the material through conduction. As the pressure decreases, moisture evaporates at a lower temperature than under atmospheric conditions.

The vacuum system removes the generated vapours from the chamber. As a result, the material loses moisture efficiently while remaining exposed to relatively low drying temperatures.

Features of Vacuum Tray Dryer (VTD)

• Low-Temperature Drying: Reduces the boiling point of moisture under vacuum conditions, making it suitable for heat-sensitive materials.
• Vacuum System: Uses a vacuum pump to maintain reduced pressure inside the drying chamber.
• Efficient Heat Transfer: Transfers heat through heated shelves and tray surfaces by conduction.
• Large Drying Surface Area: Multiple trays provide a large surface area for material drying.
• Process Inspection: A sight glass and internal light allow operators to observe the drying process.
• Temperature Monitoring: A temperature gauge helps monitor the operating temperature.
• Vacuum Monitoring: A vacuum gauge displays the pressure conditions inside the chamber.
• Secure Door Locking: A modified locking hinge provides a firm grip and supports proper chamber sealing.
• Leakage Prevention: A suitable door gasket helps minimise air leakage and maintain vacuum conditions.
• Moisture Removal: Supports drying of materials with different initial moisture contents, depending on process conditions.
• Energy-Efficient Operation: Can reduce energy consumption compared with conventional drying methods in suitable applications.

Applications of Vacuum Tray Dryer (VTD)

Vacuum Tray Dryers are used across industries that require controlled drying of temperature-sensitive materials.

• Herbal Extraction Industry: Drying herbal extracts and plant-based materials obtained during extraction processes.
• Pharmaceutical Industry: Drying heat-sensitive pharmaceutical ingredients and intermediate products.
• Chemical Industry: Drying suitable chemical compounds, powders, and materials containing volatile solvents.
• Nutraceutical Industry: Drying nutritional ingredients and sensitive plant-based extracts.
• Food Processing Industry: Drying suitable food ingredients that require low-temperature processing.
• Laboratory Applications: Drying samples and materials under controlled vacuum and temperature conditions.

Technical Specifications

Able Engineers Private Limited manufactures Vacuum Tray Dryers in different capacities according to customer requirements.

Final specifications, tray dimensions, chamber capacity, operating temperature, vacuum level, and heating requirements can be customised according to the customer's process requirements.

Optional Features of Vacuum Tray Dryer

Customers can select additional features according to their operating and production requirements.

• Digital Temperature Meter: Available for convenient digital temperature monitoring.
• High Mirror Polish: Available for improved internal surface finish.
• Additional Tray Capacity: Configurations available from 12 to 96 trays, depending on equipment design.
• Customised Construction: Material of construction and internal finish can be selected according to the application.

Advantages of Vacuum Tray Dryer (VTD)

• Suitable for Heat-Sensitive Products: Dries materials at relatively low temperatures to reduce the risk of thermal degradation.
• Faster Moisture Removal: Reduced pressure supports moisture evaporation at lower temperatures.
• Large Drying Surface: Multiple trays provide a large surface area for efficient drying.
• Controlled Drying Conditions: Allows operators to control vacuum and temperature according to product requirements.
• Reduced Oxidation Risk: The closed vacuum environment helps limit exposure to atmospheric oxygen during drying.
• Product Protection: The sealed chamber helps prevent unwanted external contamination during normal operation.
• Efficient Heat Transfer: Conductive heating provides heat to materials through the heated shelves and trays.
• Flexible Capacity: Different tray configurations support various production requirements.
• Convenient Monitoring: Sight glass, light, temperature gauge, and vacuum gauge help operators monitor the process.

Able Engineers Private Limited manufactures Vacuum Tray Dryers (VTD) for industrial drying applications across the Herbal Extraction, Pharmaceutical, Chemical, Nutraceutical, and Food Processing industries. We focus on application-based equipment design, efficient drying performance, and customised manufacturing to meet different material characteristics, production capacities, and process requirements.