Vacuum Tray Dryer
6 – 48 trolley vacuum tray dryer with SS304 / SS316 contact parts, steam/hot-water heated shelves and vacuum-tight door gasketing. Suitable for drying heat-sensitive APIs and intermediates at low temperature.
- Trolleys
- 6 – 48 trays
- Material of Construction
- SS304 / SS316
- Heating
- Steam / Hot water
- Vacuum
- 700 mm Hg
- Fully inspected before dispatch
- Documentation and photos available
- Logistics & relocation support
Vacuum Tray Dryers for Heat-Sensitive API Drying
6 to 48 trolley SS304/SS316 vacuum tray dryers with steam or hot-water heated shelves, built for low-temperature drying of heat-sensitive APIs and intermediates. This is one of the most widely used dryer types in bulk drug manufacturing, valued for the gentle, controllable drying conditions it offers compared with hot-air or high-temperature drying methods.
How It Works
Wet cake is spread across trays on a trolley, loaded into a vacuum-tight chamber and dried under vacuum (up to 700 mm Hg) using steam or hot-water heated shelves. Operating under vacuum lowers the boiling point of residual solvent, letting heat-sensitive APIs dry at a much lower temperature than atmospheric drying would require, without risking thermal degradation of the product.
Why Buy Used
A used vacuum tray dryer in good condition, with an intact vacuum seal and functioning heating circuit, delivers drying performance comparable to new at a fraction of the cost and lead time. That makes it a practical option for scaling up a formulation line quickly or adding parallel drying capacity ahead of a production ramp-up.
What to Check Before Buying
Key condition points on a used unit are door gasket and vacuum-tightness, shelf and coil integrity (no leaks into the product side), and instrumentation calibration for vacuum and temperature control. These are the areas worth verifying before a unit is put into service.
Frequently asked questions
- What trolley/tray capacity range is available?
- Units range from 6 trolleys for pilot-scale drying up to 48 trolleys for full production-scale batches, in SS304 or SS316 contact-part construction.
- What contact-part material is used?
- Contact parts are in SS304 or SS316 as required by the product being dried, with the trays and chamber checked for surface condition and pitting before sale.
- How deep a vacuum can these dryers achieve?
- Typical units are rated to around 700 mm Hg vacuum, sufficient for low-temperature drying of most heat-sensitive API and intermediate products.
