Gentle Low Temperature Drying
Vacuum operation lowers the boiling point of moisture, so heat sensitive and hygroscopic products dry without thermal damage.
Pharma & herbal process equipment
Vacuum Tray Dryer Manufacturer in India
Mecha Engineering Pvt. Ltd. is a vacuum tray dryer manufacturer in India, building stainless steel vacuum tray dryers for the pharmaceutical, herbal, chemical and food industries. The VTD dries heat sensitive and hygroscopic material gently at low temperature through hollow heating shelves and full vacuum, so the product keeps its quality.
- 6 to 96 tray models
- SS 304 and SS 316 build
- Steam, hot water or thermic fluid
- Condenser and receiver option
- Pan-India installation
6 TraySmallest lab model
96 TrayLargest standard model
4 to 10Weeks delivery, pan-India
10+States actively served
Vacuum Tray Dryer in India
A vacuum tray dryer earns its place the moment a product refuses to survive a hot air oven. Herbal and ayurvedic extracts lose marker compounds above 60 degrees. API intermediates and formulation powders carry residual solvent that has to be pulled out and condensed, not blown into a shed. Hygroscopic chemicals, flavour powders and natural colours take moisture straight back up in an open tray oven. All three dry cleanly in a vacuum chamber.
As a vacuum tray dryer manufacturer based in Saharanpur and supplying across India and to export markets, we build each unit in the tray count and capacity you need, from small lab and pilot sizes to larger production models. The dryer uses hollow shelves through which steam or hot water circulates, so heat passes into the tray by contact rather than by air movement, and the vacuum drops the boiling point of the moisture so the batch dries faster at a far lower temperature.
- Built to your batch, not to a model number. Tray count, shelf area, heating media and control level are fixed against your product before the drawing is released.
- Leak tested before it ships. Every chamber is held under vacuum on our floor and the hold reading is recorded in your test report.
- Engineers who visit. Commissioning, the first trial batch and operator training happen on your floor, not over a phone call.
- Spares held in stock. Door gaskets, silicone seals, trays, sight glasses and vacuum fittings ship the same week you ask.
Build features
Features of Our Vacuum Tray Dryer:
Every feature below protects one of two things: the quality of the product on the tray, or the hours your operator spends loading and unloading it.
Uniform Heat Transfer
Steam or hot water circulates through the hollow shelves, giving even, consistent drying across every tray from the front row to the back.
Stainless Steel Construction
Built in SS 304 or SS 316 contact parts for hygiene, corrosion resistance and easy cleaning, with mill test certificates in your name.
Leak Free Vacuum Chamber
Heavy duty door and quality gasket sealing hold the vacuum instead of making the pump work for the whole shift.
Range of Tray Counts
Built in standard sizes so the capacity matches your batch, from small lab units through to large production models.
Easy Loading and Low Maintenance
Tray guides and a full width door let one operator charge and discharge the dryer with minimal handling, for a long service life.
Configurations we supply
Vacuum Tray Dryer Range:
Pick the configuration that matches your batch and product, or send your process sheet and we will tell you which of these fits.
6 and 12 Tray Lab Model
Pilot and R and D duty for formulation development labs and QC departments. Single door, electric or hot water heating, small footprint that fits an existing lab bay.
24 and 48 Tray GMP Model
The size most pharma and herbal units order. cGMP construction with SS 316 contact parts, mirror polished interior, coved corners and flush fittings for audit duty.
96 Tray Double Door Model
Large batch drying with doors on both faces so charging and discharge are separated across a clean and grey area wall, with a steam header on each side.
Dryer with Condenser and Receiver
Chamber tied to a shell and tube condenser, condensate receiver, cooling coil and vacuum trap. Ordered wherever a solvent wet cake goes on the tray.
Herbal Extract Drying Model
Low temperature setting with deeper trays for thick and sticky extracts, plus a wider door for scraping out soft extract. Built for kwath, oleoresin and shilajit concentrates.
Custom Built Vacuum Dryer
Non-standard tray count or tray size, higher shelf temperature, thermic fluid heating or a PLC with batch report. Quoted against your drawing or ours.
Technical data
Vacuum Tray Dryer Specifications:
Standard build for a GMP model vacuum tray dryer. Every line below is changed to order, so treat this as the starting point for your enquiry rather than a fixed model list.
| Parameter | Standard offering | Options on request |
|---|---|---|
| Model Range | 6, 12, 24, 48 and 96 trays | Non-standard tray count built to your batch size |
| Material of Construction | SS 304 chamber interior, shelves and trays | SS 316 or SS 316L contact parts, MS outer shell to reduce cost |
| Internal Finish | 220 grit mirror polish with coved internal corners | Electropolished finish for pharma and export duty |
| Heating Shelves | Hollow pad type, fabricated and levelled for flatness | Extra shelf thickness, higher shelf temperature design |
| Heating Media | Steam or hot water circulation through the shelves | Thermic fluid circulation, electric heating on lab models |
| Operating Temperature | Ambient to 100 degrees Celsius at the shelf | Up to 150 degrees Celsius with thermic fluid |
| Vacuum Level | Up to 700 to 740 mm Hg inside the chamber | Higher vacuum with a two stage or oil sealed pump set |
| Vacuum Pump | Water ring vacuum pump with motor and piping | Oil sealed rotary high vacuum pump, standby pump |
| Door and Sealing | Heavy duty single door with silicone gasket seal | Double door model, toughened glass view port, safety interlock |
| Condenser and Recovery | Offered as an add-on for solvent duty | Shell and tube condenser, receiver, cooling coil, vacuum trap |
| Insulation and Cladding | Mineral wool insulation under SS 304 cladding | Higher thickness for thermic fluid and high temperature service |
| Control System | Local panel with digital temperature indicator and vacuum gauge | PLC with HMI, recipe storage, batch report, 21 CFR audit trail |
| Documentation | GA drawing, MOC certificate, vacuum test report, manual | DQ, IQ, OQ protocols, weld map, polish and leak test records |
Scroll the table sideways on a mobile screen. Send your product, wet cake weight per batch and the solvent involved and we will fill this sheet in against your process.
Choosing a model
Which Vacuum Tray Dryer Fits your Material?
The product on the tray decides the build, not the other way around. This is the shortlist we work through with a buyer on the first call.
| Product on the tray | Moisture or solvent | Best suited build | Typical application |
|---|---|---|---|
| Soft Herbal Extracts | Water or hydro-alcoholic | Deep tray model, low shelf temperature, wide door | Ayurvedic and nutraceutical units nationwide |
| API and Intermediates | Methanol, IPA, acetone, toluene | 48 tray SS 316 model with condenser and receiver | Bulk drug and intermediate plants |
| Formulation Granules and Powder | Water or alcohol wet | 24 or 48 tray cGMP model, steam heated | Tablet, capsule and formulation lines |
| Dyes, Pigments and Fine Chemicals | Solvent wet, often corrosive | SS 316L contact parts with solvent recovery circuit | Dye intermediate and specialty chemical units |
| Hygroscopic Crystalline Solids | Surface and bound moisture | Leak tight chamber, filtered vacuum break line | Salts, catalysts and crystalline chemicals |
| Spice Oleoresin and Flavour Powder | Water or ethyl acetate | Low temperature build, food grade finish | Food, spice and natural colour plants |
| New Formulations, Small Batches | Any within design limits | 6 or 12 tray lab model, electric or hot water | R and D labs and QC departments |
Not sure which row you belong to? Share the product name and the wet cake weight per batch and we will confirm the tray count along with an indicative cycle time.
How the dryer runs
The Vacuum Drying Cycle, Step by Step
Six stages from wet cake to dry powder. Your operator sees the same sequence on every batch, which is what keeps the moisture figure consistent.
01
Tray Loading
Wet product is spread on the trays to an even thickness and the trays are slid onto the heating shelves through the front door.
02
Sealing and Evacuation
The door is closed against its gasket and the vacuum pump pulls the chamber down to the set level before heating begins.
03
Heating Through the Shelves
Steam or hot water circulates through the hollow shelves and transfers heat by contact into the tray, so there is no air blast on the product.
04
Moisture Removal at Low Temperature
Under vacuum the moisture boils off well below its normal point, so the product dries quickly without thermal damage.
05
Vapour Condensation and Recovery
Vapour passes into the condenser, is cooled and collects in the receiver. A vacuum trap keeps any carry over out of the pump.
06
Vacuum Break and Unloading
Vacuum is broken through a filtered air line, the door is opened and trays are drawn out for milling, sifting or packing.
Where these dryers are used
Applications of the Vacuum Tray Dryer:
Pharmaceutical and API Units
Bulk drugs, intermediates, granules and solvent wet cake where residual solvent has to be condensed and recovered rather than vented.
Herbal and Ayurvedic Processing
Soft extracts, kwath concentrates, oleoresins and shilajit dried gently so that marker compounds and colour survive the cycle.
Nutraceutical and Supplement Makers
Vitamin blends, probiotic and enzyme carriers and standardised extract powders that cannot see high temperature or open air.
Fine and Specialty Chemicals
Dyes, pigments, catalysts and crystalline chemicals that are hygroscopic, oxygen sensitive or prone to degrading in a hot air oven.
Food, Spice and Flavour Plants
Flavour powders, natural colours, spice oleoresins and dehydrated food ingredients where aroma retention decides the grade.
Contract Manufacturers and Exporters
Multi-product units switching materials weekly, so they buy for quick changeover, easy cleaning and third party audit readiness.
We also build related process equipment such as the Herbal Extraction Plant, the Rotary Extractor, the Distillation Reactor and the Sparkler Filter Press.
Nationwide dispatch and service
Vacuum Tray Dryer Supply Across India
Every dryer ships from our Saharanpur works, and we install and commission on your floor wherever you are. Find your state below for local coverage, freight notes and the districts we serve most often.
- Uttar Pradesh
- Maharashtra
- Gujarat
- Madhya Pradesh
- Rajasthan
- Haryana
- Bihar
- Uttarakhand
- Jharkhand
- Chhattisgarh
State not listed? The pages above are simply the regions we are asked about most. Supply, installation and after-sales service cover every state and union territory in India, and export orders are packed sea worthy with the documentation set your destination country needs.
Questions we are asked
Vacuum Tray Dryer: Frequently Asked Questions
Straight answers to what buyers ask before and after a site visit.
What is a vacuum tray dryer?
A vacuum tray dryer is a box shaped batch dryer that dries products on trays placed over heated shelves inside a sealed chamber. It works under vacuum, so moisture evaporates at a low temperature and the product is not damaged by heat.
Why dry under vacuum?
Vacuum lowers the boiling point of moisture, so drying happens at a lower temperature. This suits heat sensitive and hygroscopic materials, prevents oxidation, and gives faster, gentler drying.
What tray counts do you offer?
We build vacuum tray dryers in standard sizes such as 6, 12, 24, 48, and 96 trays, and we size the unit to your batch. Share your requirement and we will suggest a suitable model.
What material are your dryers built from?
Product contact parts are built in SS 304 or SS 316 stainless steel to GMP standards for hygiene, corrosion resistance, and a long service life.
What heating medium is used?
Steam, hot water, or thermic fluid circulates through the shelves, selected to suit your product and the available utilities. Electric heating is offered on 6 and 12 tray lab models where no boiler is available.
Which industries use a vacuum tray dryer?
It is used in the pharmaceutical, herbal, chemical, food, and nutraceutical industries, anywhere heat sensitive material needs gentle drying.
Do I need a condenser and receiver with the dryer?
If your cake is only water wet, a condenser is often skipped to save cost. If it carries ethanol, methanol, IPA, acetone or any other solvent, order the condenser, receiver, cooling coil and vacuum trap. It recovers the solvent as condensate and keeps vapour out of the vacuum pump.
Which material grade do you use, and can I get certificates?
The standard build uses SS 304 for the chamber interior, shelves and trays. SS 316 and SS 316L are used where the product or solvent is corrosive, or where a pharma audit requires it. Mill test certificates for every plate and pipe are issued in your company name and handed over with the dryer along with the GA drawing and test report.
Do you provide installation and after-sales support?
Yes. Erection, utility tie-in, vacuum pump and condenser piping, leak check, the first product batch and operator training at your site are part of the supply scope, and spares are held in stock.
How long does delivery take?
Standard 6 to 48 tray models ship in 4 to 8 weeks from order confirmation. A 96 tray double door dryer or a fully automated unit takes 8 to 10 weeks. Freight is quoted at actual transporter cost, and for larger chambers we arrange the trailer, route survey and unloading crane along with the dispatch.
Do you supply vacuum tray dryers outside India?
Yes. We supply across India and to export markets, with sea worthy packing, export documentation and a loading survey arranged with the dispatch.
How do I get a price for my vacuum tray dryer?
Call +91-9084351006 or +91-7500378000, send a WhatsApp message, or email info@mechaengg.com with four details: the product you are drying, the wet cake weight per batch, the solvent or moisture involved and the utility available on your floor. A specification sheet and price come back within one working day.
Talk to the specialist
Take Benefit of Our Expertise and Experience. Request a Query!
Share the product, the batch weight and the solvent involved. Our Saharanpur engineering team returns a specification sheet, layout drawing and price so you can compare on paper rather than on promises.