Ordinary and Top-press Silicone Oil Heating Certified Lab Food Intelligent Vacuum Freeze Dryer Lyophilizer

It is a freeze-drying (lyophilization) machine designed for laboratory, food and small-scale pharmaceutical applications. It uses silicone-oil shelf heating, an intelligent control system and a robust vacuum system to dry and preserve samples while maintaining low temperatures and precise control.

Silicone oil heating uses heated silicone oil circulated in the shelf system to provide even, stable and controllable shelf temperatures. Benefits include uniform heat transfer, reduced temperature overshoot and extended shelf lifetime compared with some direct-heating methods.

"Ordinary" refers to standard shelf heating operation. "Top-press" applies a light pressure from above to improve thermal contact between sample vessels and the shelf, which can speed heat transfer and improve drying uniformity for certain sample types.

Temperature range: -70 to 70 °C; Vacuum: <10 Pa; Shelf size: 450 × 300 mm; Tray configuration: 4+1 layers; Plate load capacity: 6 L; Material: metal; Single gross weight: 400 kg; Package size: 230 × 200 × 180 cm.

The unit has a 4+1 layer tray configuration (four working tray layers plus one additional layer). Plate load capacity is listed as 6 L (please confirm intended meaning with supplier for per-tray or total load). Actual throughput depends on product bulk density and packaging.

The system can reach vacuum levels below 10 Pa. Low pressures reduce the boiling point of water, enabling sublimation of ice at low temperatures and resulting in gentler drying that preserves structure and activity in sensitive samples.

Typical applications include food preservation (restaurants, cafes), laboratory biological and chemical sample preparation, pharmaceutical R&D and small-batch drug development, food-technology research, and storage of moisture-sensitive materials.

Cycle time varies widely depending on sample type, mass, moisture content and packaging. Typical cycles commonly range from 12 to 48 hours; some products may require longer. The intelligent control system lets you optimize shelf temperature and chamber pressure for each product.

The unit features an intelligent control interface for setting and monitoring shelf temperature, vacuum level and timed programs. It supports preset or custom drying profiles and real-time monitoring of key parameters. Contact the supplier for details and the operator manual.

Allow space for the machine footprint and service access, provide suitable floor load capacity (unit gross weight ~400 kg), ensure proper ventilation and exhaust for the vacuum pump, and supply the correct electrical power and grounding. Exact electrical requirements should be confirmed with the supplier.

Routine maintenance typically includes changing vacuum pump oil, periodic replacement or filtration of silicone oil (if applicable), checking door seals/gaskets, cleaning condensers and trays, and scheduled vacuum system checks. Consumables commonly include vacuum pump oil, silicone oil and replacement seals.

The product name indicates it is "certified," but specific certificates or standards are not listed in the spec sheet. Ask the supplier for copies of certifications (for example CE, ISO or food-contact approvals) and for documentation required for your regulatory environment.

It can be used for R&D and small-batch pharmaceutical work, but use in GMP/regulated production requires appropriate qualification (IQ/OQ/PQ), traceable documentation and possibly additional features or documentation. Consult the vendor to confirm compliance and available validation support.

Use appropriate PPE, follow the operator manual, ensure proper training before use, avoid drying flammable solvents unless unit is approved for solvent use, be cautious of low-temperature and hot-surface hazards, and perform regular safety checks on pressure relief devices and electrical connections.

Warranty terms and after-sales service options are not shown in the spec sheet. Contact the supplier or manufacturer (Drawell) for warranty details, service contracts, on-site installation, operator training and availability of spare parts and consumables.