Navi Mumbai, Maharashtra, India
Our Products
6 Trays to 192 Trays
Application:Air tray dryers are the most commonly used drying system after sun drying. Promas Engineers dryers are specially designed to have better efficiency than any other dryer, available from other tray dryer manufacturers. Promas Engineers dryers are now more accepted brand in the industry than any other brand in market. Our clientle base is in Pharmaceutical, Chemicals, Dyestuff, Textile, Food, Automobile & many other industries. We are manufacturer, exporter and supplier of air tray dryers as per ISI specifications and users requirements since 1990 from Mumbai to India and all over the world.
The tray dryers are heated by means of electrical, steam and oil as fired burners. The dryer cabinet is designed in such a way that air inside the dryer has minimum resistance at all the corners of the dryer.
All the sides of the dryer from inside are made with rounded corners with maximum angle so as to have more slippage to air, resulting into less pressure drop across the corners. The outer body is also fabricated with rounded edges without steps from outside to have smooth finish. The inside fan & radiator / heaters are covered with SS / GI mesh to have safety in operation.
Air in the dryer is circulated by means of fan fitted on the side of the dryer. The fans are made out of AISI 304 / 316 or MS with SS / MS / EN8 shafts driven by suitable motors. The shafts are well balancing test certificates.
Tray sizes of 32 X 16 X 11/4 or 32 X 16 X 2 are manufactured out of 16/18/19 swg., AISI 304 / 316 or PP material. All the corners are rounded without any gap. The 18 swg trays are with bidding from the top, while 16-swg trays come without bidding, and are used for all GMP model tray dryers. The trays are polished to mirror finish. The trays with perforation are also supplied for bottle or vial dryers.
These are manufactured from heavy gauge rectangular pipes & SS angle with cross supports brackets & wheels.
Standard models range from 3 trays to 96 trays
Application:Used for drying of high grade temperature and oxygen sensitive products. Highly suitable for drying hygroscopic substances which are dried to very low residual moisture content levels. Frequently vacuum drying cabinets are the sole possibility for drying lumpy, glutinous products or products of low pomposity. We are manufacturer, supplier and exporter of vacuum tray dryer as per ISI guidelines and user’s requirements since 1990 from Mumbai to India and all over the globe.
Vacuum tray dryer is the most commonly used batch dryer. They are either box – shaped or cylindrical shaped loaded and unloaded via a door. Inside are several heating plates mounted one above the other on which the product is placed in trays .The Top of both heating plates (Shelves) and the bottom of heating shelves trays should be as smooth as possible to permit optimal 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 limpet coil provided on the outer side of the body (Optional). Only after all the 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 product are 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 vacuum of only few mbar abs are reached. The vacuum can be controlled through PLC in order to reduce the drying cycle. Nitrogen can also be purged in the VTD according to the product.The dimensioning of the vacuum system is an important factor in the design of drying cabinet systems .If for example vigorous foaming of the product is desired, evacuation to the operational vacuum level must take place very quickly. Vapors produced during drying are taken out directly to a surface condenser in which the vapours condenses. Non-condensable vapours are extracted by the vacuum system. On completion of the drying, the product can be cooled by circulating of cooling water through the heating plates.
Vacuum tray dryers with watering vacuum pump & high vacuum Rotary oil ring Pump can be providing Promas Edge Over the other Manufacturers of vacuum tray dryers.
5 Litres to 5000 Litres
Application:Rotary double cone vacuum dryers are suitable for drying & mixing powder (raw materials), pharmaceutical materials, crystalline products, insecticides, pesticides, food products & also for heat sensitive products. The equipment can also be used as rotary evaporator. Promas Engineers is a certified company for manufacturer, supplier and exporter of rotary double cone vacuum dryers according to ISI guidelines and users requirements since 1990 from Mumbai to India and all over the world.
Raw material is charged in batches & is subjected to indirect heating while at the same time undergoing rotary motion of the cone assembly. The conical shape of the dryer ensures efficient circulation of hot liquid heating media. Drying takes place when heat flows from outer cone through a jacket, and vacuum is applied in the inner cone. The drying operation is based on the principle that water or other volatile product moves from a zone of low pressure. This is accomplished by warming the product to be dried to raise the vapour pressure of the absorbed or free liquid by vacuum or by sweeping it with Air or Nitrogen current. Thus the essential conditions for effective drying are achieved by uniform heat transfer throughout the batch and rapid removal of the vapour. The vacuum is applied gradually with PLC control by throttling.
Promas Engineers Rotary Double Cone Vacuum Dryer is unique in removing complete water, or other solvent from wet powders coming from a filtration unit or a centrifuge. It can be used as an effective dryer, fast mixer & blender or homogenizer. It can also be used as a granulator.
The drying time is substantially reduced because of high-speed choppers, which help the evaporation of the solvent or moistures. Chopper speed can be controlled by a frequency drive. Dryer are manufactured as per US-FDA Standards & Regulations.
5 Litres to 5000 Litres chamber volume
M. O. C:SS 316, SS 304, Carbon Steel
They are used with particular success in agglomeration free rapid drying, heterogeneous reactions with systems of different substances, sterilization and in general for vacuum application. Heating arrangement can also be provided along with the unit.
Choice of product contact materials: AISI 304L, AISI 316L, Hastelloy optional HALAR/PTFE Coating available.
Volume of the wet material loaded into the dryer is restricted to 40-45 % of gross volume.
We are manufacturer, supplier and exporter of agitated vacuum dryers according to ISI guidelines and users requirements since 1990 from Mumbai to India and all over the world.
Application:To dry heat sensitive and air sensitive material under vacuum thus accomplishing the drying at moderate temperature avoiding contact with air.
The entire drying chamber is well machined to bring about a close encounter with the agitator blade thus ensuring proper shuffling of the material and thus avoiding localised over heating. The leak proof front opening door ensures easy cleaning of the entire chamber.
The top loading and bottom unloading facility provides for easy charging and discharging of the material. The cyclonic trap prevents the fine dust of the dry material from flying into the vapour condenser. The condenser and the condensate collection tank prevent the vapours from entering the vacuum pump. Appropriate vacuum pump and accessories are provided with the unit with valves to adjust the right vacuum in the unit. The entire unit is mounted on a steel frame.
5 kilograms to 300 kilograms
Application:To dry material by fluidisation with hot and or dehumidified air.
The atmospheric air is sucked in the dryer through 5/10 micron filter by an efficient dynamically balanced fan driven by an electric motor. The clean air then passes over the electric heaters steam or oil radiator provided with temperature controller. The hot air passes through the product and fluidisation dries the product. Dryer is provided with dehumidifier (Chilled water system) at the inlet of the dryer so as to dry the product at low temperature under fluidized condition. The blower speed is controlled by A. C. frequency drive so as to control the fluidisation avoiding choking of the filter bag. A raking system provided to avoid lump formation in the container to achieve uniform fluidisation & uniform drying. A model with complete automation and PLC, automatic bag shaking and with mimic is also offered. Promas Engineers is manufacturer, supplier and exporter of fluid bed dryers according to ISI guidelines and users requirements since 1990 from Mumbai to India and all over the world.
