In modern laboratories across biomedicine, food science, fine chemicals, and advanced battery material research, vacuum freeze‑drying technology has become an irreplaceable tool for preserving sensitive samples. Also known as sublimation drying, this process gently freezes aqueous materials first, then removes moisture through sublimation in a high‑vacuum environment—without altering the biological, chemical, or structural properties of the original substance. AOT‑10N‑80 series laboratory vacuum freeze dryer stands at the forefront of this technology, merging industrial‑grade refrigeration, intelligent control, and user‑centric design to deliver consistent, reliable, and high‑efficiency freeze‑drying performance for critical R&D and small‑scale production.
At the core of the AOT‑10N‑80 lies a high‑performance Secop compressor, renowned globally for its rapid cooling capability, ultra‑low noise operation, extended service life, and exceptional energy efficiency. Unlike ordinary compressors, it drives the refrigeration system to reach deep sub‑zero temperatures quickly, laying a solid foundation for efficient sublimation. The unit adopts the world‑leading LIND‑HAMPSON refrigeration technology equipped with a dedicated recooler, which performs secondary cooling to further enhance cooling efficiency and stability. This advanced system ensures the cold trap achieves a no‑load temperature ≤ –80°C even under a high ambient temperature of 28°C, delivering strong cooling capacity to capture water vapor rapidly during the drying process.
Environmental safety and compliance are fully integrated into the design: the AOT‑10N‑80 uses 100% eco‑friendly refrigerants that contain zero nationally prohibited substances, aligning with global green production standards while maintaining powerful cooling output. This combination of advanced refrigeration technology and sustainable materials makes the machine both high‑performing and environmentally responsible.
Designed for laboratory versatility and ease of use, the AOT‑10N‑80 comes standard with a high‑quality vacuum pump, connected to the main unit via an international standard KF quick connector. This universal interface ensures seamless compatibility with a wide range of vacuum pumps, allowing flexible configuration based on experimental needs. The vacuum pressure display supports free switching between MBAR, PA, and TORR units, enabling researchers to monitor and record data with precision according to different testing standards.
After each freeze‑drying cycle, the built‑in electric heating defrosting function automatically heats the cold trap to remove accumulated frost, simplifying maintenance and ensuring consistent performance in long‑term use. A standard nitrogen inflation valve adds an extra layer of protection: after drying is complete, users can fill the chamber with nitrogen or other inert gases to prevent sample oxidation, stabilize active ingredients, and extend the service life of the instrument itself.
The AOT‑10N‑80 series includes four specialized models—AOT‑10N‑80A, B, C, D—to meet diverse experimental requirements:
Standard chamber models for general freeze‑drying;
Stoppering chamber versions for vacuum stoppering of vials;
8‑port manifold configurations for simultaneous processing of multiple samples;
Combined designs that integrate manifold and stoppering functions.
All models operate on AC220V/50Hz power with a total power of 1050W and a 770W compressor, controlled via a clear, responsive LCD touchscreen for intuitive operation. The freeze‑drying area ranges from 0.092m² to 0.12m², with 3 to 4 shelf layers (220mm spacing), tray capacities of 1L to 1.5L, and a water capture capacity up to 3kg per 24 hours. The inner chamber is constructed from 304 stainless steel for corrosion resistance and easy cleaning, while the transparent bell jar uses durable polycarbonate or acrylic glass for real‑time observation of the drying process. With compact external dimensions (approximately 770×510×710mm) and net weights from 110kg to 120kg, the unit fits easily into standard laboratory layouts without occupying excessive space.
The superior performance of the AOT‑10N‑80 makes it ideal for processing heat‑sensitive, oxidizable, and structurally fragile materials: vaccines, enzymes, probiotics, protein samples, natural plant extracts, electronic materials, and lithium‑battery precursors all retain their original activity, shape, and molecular structure after freeze‑drying. The low‑temperature sublimation process creates a loose, porous structure in the finished product, allowing instant and complete rehydration to restore the sample to its pre‑drying state. Compared with traditional hot air drying, spray drying, or microwave drying, vacuum freeze‑drying better preserves color, aroma, nutritional value, and biological activity—making it the gold standard for high‑value sample preservation.
Each machine comes pre‑installed with English operating software and a complete English user manual; online technical support is available via Skype, WeChat, Email, and remote assistance through TeamViewer.
The AOT‑10N‑80 laboratory vacuum freeze dryer integrates advanced refrigeration, intelligent control, eco‑friendly design, and versatile configuration to provide laboratories with a stable, efficient, and safe freeze‑drying solution. Whether for basic scientific research, sample preservation, or small‑batch preparation of high‑value materials, it ensures maximum retention of sample activity and structure—making it an essential piece of equipment for modern laboratories pursuing precision and reliability.
