Vacuum Tray dryer is the most commonly used batch dryer. They are box-shaped and loaded and unloaded via a door (two doors on the larger models). Inside are several heating plates mounted one above the other on which the product is placed in trays. The bottom of both heating plates and trays should be as smooth as possible to permit heat transfer between plates and product. The medium flowing through the heating plates is water, steam or thermal oil. The distance between the heating plates is determined primarily by the surface loading and the foaming of the product. To avoid retrograde condensation, the cabinet walls are indirectly preheated by the heating plates. Next, the product is introduced and heated at atmospheric pressure. Only after all individual product trays reach the same temperature the cabinet is evacuated and drying can start.
The preheating phase is very important in order that the drying curve and the foaming of the product is identical throughout the cabinet, During the main drying phase, the vacuum is in the range of 40 to 80 mbar abs and in the final drying phase, vacuums of only few mbar abs are reached. Heating temperatures are normally on the range between 800C and 1100C. Depending on product and surface load, drying takes from a few hours to 1 to 2 days. For some products, the vacuum and temperature profiles are automatically controlled in order to prevent a pass over of the critical product temperature. The dimensioning of the vacuum system is an important factor in the design of drying cabinet systems.
Technical Specifications for Vaccum Tray Dryer:
| Model | UVTD 2 | UVTD 6 | UVTD 24 | UVTD 48 |
| Capacity in Trays | 48 | |||
| No. of Shelves | 16 | |||
| Dummy Shelf | 1 | |||
| Trays Per shelf | 3 |
The Umang Pharmaceutech Test Station is located in Vasai, THane, conveniently located very close to Mumbai airport, only forty five minutes from Mumbai International Airport. The Test Station's purpose is to assist our Pharmaceutical and Biopharmaceutical Industry customers with feasibility testing of their products on our equipment, and to be a partner with them in the process development as they move forward from the Research and Development stages to clinical production, and eventually into full-scale Manufacturing.
The station combines decades of design and development know-how in the pharmaceutical industry with the very latest in processing equipment to provide you with a unique opportunity for feasibility, development, and small-scale manufacturing of pharmaceutical products.
Your needs are critical and individual. The UMANG Pharmaceutical Test Station has been designed to meet those needs.
Our expertise in formulation development extends to the development of all conventional dosage forms. Our strategic alliances broaden the scope to consider many Novel Drug Delivery Systems (NDDS), including transdermal & liposomal delivery systems. We consider multiple approaches to improve the bioavailability of drugs. We have expertise in improving delivery of poorly soluble/ permeable drugs and the capability to screen potentially innovative drugs based on pharmacokinetic properties. We possess pelletization, drug-layering, particle-coating and other technologies to achieve extended release profiles for tablets or capsules.
Our analytical development services include assay and RS method development and validation, dissolution method development and validation, stability studies as per ICH guidelines, polymorphic form characterization (DSC/TGA/XRD/Microscopy), cleaning validation studies and HPLC to UPLC method conversions.
What type of material is suitable to process in Vaccum tray dyer ?
Non-sticky , powder, tablets, pellets , granules, leaves, herbs etc
What are the particle size constraints ?
There are no constraints we design the machine as per your product requirements .
How much HW, KWH use is needed to process my material and for what capacity / feed rate ?
You can install the complete system of 50-60 kgs/ hr in 15 HP depending on material type.
Will the process heat up my material excessively ?
No there is a uniform air distribution in the machine.
Can the trays of the machine accessible on a trolley for complete wash down ?
Yes
How often should I clean the machine ? Are the parts easily available ?
Yes the parts are easily accessible for product change over.
Do you offer the machine in mild steel construction for industrial application ?
Yes we do offer the same for procie sensitive products / segments .
How quickly can we expect delivery ?
12-16 weeks
Is the machine of modular design ?
Yes number of trays can be modified, the height and temperature & no of trays can be modified as per product needs?
