SUPRADRY Vacuum Dryer (SDV)

How a Vertical Vacuum Dryer with Spiral Agitator Works

SUPRADRY (SDV) is a vertical vacuum dryer equipped with a spiral agitator and a large heat transfer surface, designed for batch drying of crystalline, pasty, or amorphous products. Drying can be performed under deep vacuum conditions (below 1 mbar), while the rotating agitator creates an upward product movement along the vessel wall, ensuring continuous renewal of material in contact with the heated surfaces.

Thanks to its vertical design, spiral agitator configuration, and bottom discharge outlet, the dryer is easy to empty and clean. The system meets the highest requirements for cleanliness, documentation, and traceability and is available in sanitary versions with mirror-polished or electropolished finishes as well as optional CIP/SIP cleaning systems. SUPRADRY can be equipped with features such as choppers, sampling valves, a heated shaft, and an ATEX Zone 20/0 certified internal design.

Technical Specifications

• Capacities from 50 to 30,000 litres
• Batch operation under vacuum < 1 mbar
• Operating temperatures up to 200 °C
• Surface finish up to Ra ≤ 0,2 µm
• Design standards: ASME VIII div.1, AD-2000, EN-13445
• cGMP- and FDA-compliant execution

Typical Industries

• Pharmaceutical and biotechnology
• Chemical and specialty chemicals
• Food processing

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Efficient Vacuum Drying of Sensitive Products

SUPRADRY provides gentle and controlled vacuum drying of crystalline, pasty, and powder-based products. Its large heat transfer area and low operating temperatures make the technology ideal for drying heat-sensitive APIs, enzymes, and other active ingredients where product quality and stability must be preserved.

Uniform and Efficient Heat Transfer

The vertical spiral agitator creates a natural product flow, continuously conveying material upwards along the heated vessel walls. This constant product renewal ensures uniform heat transfer and significantly reduces drying times while preventing agglomeration and local overheating, even when processing difficult or sticky products.

Hygienic Design and Easy Cleaning

SUPRADRY is designed for applications with stringent hygienic requirements and can be supplied with mirror-polished or electropolished surfaces, CIP/SIP integration, and FDA-compliant materials. The simple, open geometry without bottom bearings enables fast and safe inspection and cleaning while minimizing the risk of cross-contamination in pharmaceutical production.