Energy-Efficient Operation
Designed for low electricity consumption, ideal for cost-effective pharma manufacturing.
Mecha Engineering Pvt. Ltd. is a prominent rotary extractor manufacturer in India, for pharma industry uses, known for precision engineering and high-quality performance. Our rotary extractors are built using premium-grade raw materials and are rigorously tested through pressure and performance checks before dispatch, ensuring defect-free delivery every time.
Engineered to meet international standards, our extractors are ideal for solvent recovery and continuous solid-liquid extraction processes in pharmaceutical manufacturing. A rotating drum with internal baffles gives better solvent contact on light, fluffy material such as leaves, flowers and tea, so you get the same yield with a lower solvent bill than a static vessel on the same material.
With a focus on energy efficiency, reliability and longevity, Mecha Engineering's rotary extractors stand out in terms of operational excellence and low maintenance. Backed by years of industry experience, our team ensures every unit matches the stringent needs of modern pharma production lines, fabricated at our own works in Saharanpur, Uttar Pradesh and dispatched across India.
Every feature below exists to protect one of two things: the actives in your material, or the hours your operator spends on a batch.
Designed for low electricity consumption, ideal for cost-effective pharma manufacturing.
Built with premium raw materials to deliver long-term durability and peak performance.
Withstands high-pressure processes, ensuring continuous and reliable operation.
Easy to operate with minimal maintenance, reducing downtime between batches.
Durable exterior with corrosion-resistant coating for consistent performance in demanding environments.
Every unit is put through pressure and performance checks at our Saharanpur works before it leaves for site.
Pick the configuration that matches your material and throughput, or send your process sheet and we will tell you which of these fits.
The standard batch unit for a single site. One jacketed drum, condenser and receiver sized for your daily material quantity.
Two or more drums plumbed for counter-current solvent flow, used where a contract manufacturer runs continuous shifts rather than isolated batches.
Horizontal axis drum for bulky, low-density feed such as whole leaves and flower heads, where a vertical basket would bridge and channel.
Shell and tube condenser, receiver and vacuum concentration tied directly to the drum outlet for ethanol or hydro-alcoholic recovery on the same skid.
Feed hopper, drum and discharge conveyor tied together for large volume contract extraction, where material moves through without stopping between batches.
A compact 150 to 500 litre drum for R and D and small batch trial work before a full commercial line is ordered.
Standard build for a single drum rotary extractor. 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 |
|---|---|---|
| Drum Capacity | 150, 300, 500, 1000, 2000 and 3000 litres | Up to 10,000 litres, and multi-drum batteries |
| Material of Construction | Food grade SS 304 shell and contact parts | SS 316 or SS 316L contact parts, MS jacket to reduce cost |
| Internal Finish | 220 grit mirror polish, around 0.4 micron Ra | Electropolished finish for pharma duty |
| Heating Arrangement | Limpet coil jacket, steam at up to 3 kg per sq cm | Dimple jacket, thermic fluid, or electric heaters |
| Drum Rotation | Geared motor drive, fixed speed, 2 to 6 RPM | VFD variable speed control |
| Operating Temperature | Ambient to 100 degrees Celsius | Up to 150 degrees Celsius with thermic fluid |
| Design Pressure | Full vacuum on shell, atmospheric on inside | Pressure vessel design and third party certification |
| Charging and Discharge | Top hinged manhole, end tilt discharge chute | Pneumatic conveying feed, screw discharge |
| Solvent Compatibility | Water, ethanol, hydro-alcoholic mixes | Hexane, IPA, methanol, ethyl acetate with flameproof fittings |
| Condenser and Recovery | Shell and tube condenser with SS receiver | Chilled water condenser, vacuum concentration skid |
| Insulation and Cladding | 50 mm mineral wool under SS 304 cladding | Higher thickness for thermic fluid service |
| Control System | Local panel with temperature indicator and timer | PLC with HMI, recipe storage, batch report, SCADA link |
| Documentation | GA drawing, MOC certificate, test report, manual | DQ, IQ, OQ protocols, weld map, polish and pressure records |
Scroll the table sideways on a mobile screen. Send your material, batch size and solvent and we will fill this sheet in against your process.
The feed material decides the drum design, not the other way around. This is the shortlist we work through with a buyer on the first call.
| Feed material | Solvent or medium | Best suited configuration | Typical application |
|---|---|---|---|
| Dried Leaves and Flowers | Ethanol or hydro-alcoholic blend | Horizontal rotary extractor with internal baffles | Ayurvedic and nutraceutical units nationwide |
| Tea, Coffee and Spices | Water, ethanol or ethyl acetate | Single drum extractor with solvent recovery | Food and beverage extract plants |
| Roots and Barks | Ethanol under reflux | Multi-drum battery for higher solids loading | Ashwagandha, safed musli and root processors |
| Seeds and Oilseeds | Hexane or ethanol | Continuous rotary extraction line | Oleoresin and seed extract plants |
| Bulky Fibrous Material | Water or hydro-alcoholic mix | Horizontal drum with tilt discharge | Large volume contract extraction units |
| New Formulations, Small Batches | Any solvent within design limits | Pilot scale rotary extractor, 150 to 500 litres | R and D labs and new product trials |
| Downstream Concentration | Vacuum, any solvent | Rotary extractor tied to vacuum concentration skid | Standardised extract and syrup lines |
Not sure which row you belong to? Share the material name and the part used and we will confirm the configuration along with an indicative yield range.
Six stages from raw material to finished extract. Your operator sees the same sequence on every batch, which is what keeps the output consistent.
Material is cleaned, dried to the target moisture and cut or coarsely milled so the solvent can reach it through the tumbling action.
Material goes in through the top hinged manhole, then measured solvent is added to the set solid to solvent ratio before the door is sealed.
The drum turns at a set speed while the jacket brings the batch to temperature. Internal baffles keep lifting fresh material into contact with the solvent.
Rotation slows and the liquid extract drains through a screened outlet. Spent material is tipped out through the end discharge chute for disposal or a second pass.
The extract is concentrated under vacuum. Condensed solvent collects in the receiver and returns to the next batch.
Output is drawn off as liquid, soft or semi-solid extract, or sent forward to a spray or vacuum dryer for a free flowing powder.
Standardised extract and herbal syrup lines that process leaf, flower and flake material, with SS 316 contact parts and IQ or OQ documentation where GMP audits need them.
Capsule, tablet and gummy makers needing consistent marker compound levels batch after batch, usually with PLC batch logging.
Rotary drums handle loose leaf and roasted bean material better than a static basket, giving faster drainage between batches.
Solvent circulation tuned for the density and oil content of ground spice, with recovery sized for the solvent volume in use.
Oleoresin, natural colour and botanical extract lines where food grade construction and CIP cleaning are non-negotiable.
Multi-product units that switch materials weekly, so they buy for quick changeover, recipe storage and third party audit readiness.
Every unit 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.
State not listed? These are only the states with a dedicated page. Site visits, erection and after-sales service cover every state in India, plus export markets. Call or WhatsApp us and we will confirm coverage for your location.
Straight answers to what buyers ask before and after a site visit.
A rotary extractor is a system that extracts soluble compounds from solid material such as herbs and botanicals. A rotating action brings the solvent and the material into close contact for a thorough, consistent extraction.
The material and solvent are loaded together and the unit rotates, mixing them so the solvent draws out the active compounds. The extract is then separated and sent for further processing.
It is used for herbs, spices, seeds, roots, and other botanical material in the herbal, ayurvedic, food, and nutraceutical industries.
We build rotary extractors to your batch size, from small batches to commercial scale. Share your material and required output and we will recommend a configuration.
Product contact parts are built in food grade SS 304 or SS 316 for hygiene and corrosion resistance.
Yes. We provide installation support and spares, and we supply across India and to export markets.
The standard build uses SS 304 for the shell and product contact parts. SS 316 and SS 316L are used where the solvent or the material 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 extractor along with the GA drawing and test report.
Standard drums ship in 4 to 8 weeks from order confirmation. Automated and multi-drum plants take 10 to 12 weeks. Freight is quoted at actual transporter cost once the vessel size and destination are known, and for larger drums we arrange the trailer, route survey and unloading crane along with the dispatch.
Call +91-9084351006 or +91-7500378000, send a WhatsApp message, or email info@mechaengg.com with four details: the material and the part used, the batch quantity in kilograms, the solvent you intend to use and the form of extract you want at the end. A specification sheet and price come back within one working day.
Share the material, the batch size and the solvent. Our Saharanpur engineering team returns a specification sheet, layout drawing and price so you can compare on paper rather than on promises.