PSL’s CakeStand Tray Dryer design overcomes the inherent difficulties of traditional tray dryers. This unique vacuum drying oven accommodates capacities from kilograms to large-scale production thanks to its modular design and results in better drying time thanks to a uniform direct heating system.
The CakeStand Tray Dryer introduces a unique heat transfer system that ensures a proven heat uniformity across all heating plates.
Heated Shelves Temperature Mapping Tests
The heating uniformity across the shelves of PSL's CakeStand Tray Dryer has been tested using thermocouple probes secured on the same six locations on each of the four shelves. The temperature of the thermocouples was recorded with PicoLog software after 15 minutes of heating fluid circulation through the shelves once the temperature reached 60°C. The findings are shown below.
Maximum recorder temperature difference:
- Highest Recorded Temperature = 59.7°C on Shelf No. 3
- Lowest Recorded Temperature = 57.7°C on Shelf No.4
- Maximum Recorded Temperature Variation = +/- 1.0°C
Supply temperature fluctuation:
The Water Circulating Temperature Controller supply temperature fluctuation was recorded to be +/- 0.25°C
The patent pending design of the CakeStand Tray Dryer features enhanced ergonomics through optimum tray size, pivot door design and front and back access. These valuable features ensure less opportunity for overreaching or accidental spillage.
Total ease of cleaning is achieved by a completely open floor inside the drying cabinet with all heating plates hanging directly from the roof. The CakeStand design totally avoids hidden pockets or non-accessible gaps that can make the cleaning procedure problematic.
The CakeStand Tray Dryers can operate in down-flow booths, cleanrooms or in conjunction with PSL containment isolators providing high containment when handling highly potent APIs and other highly active or cytotoxic compounds. They can also meet sterile process requirements when necessary for drying toxic or sensitive products.
The tray drying technology of PSL has been carefully developed with efficiency, ergonomics and safety in mind. A number of design features have been incorporated into the designs for ease of use and both operator and product protection.
CakeStand Tray Dryer with sight glass door
PSL Tray Dryer options:
- Laboratory to production scale sizes
- Containment to nanogram levels
- Sterile option available
Features:
- cGMP
- Easy cleaning
- Front and back access
- Rounded edges and corners
- Full vacuum
- Excellent heat transfer
- Ergonomic
- Pressure control
- High containment isolation technology
