INTRODUCTION TO LABORATORY FREEZE DRYERS
An Industry Benchmark in Laboratory Freeze-Drying Technology
In modern scientific research—spanning fields such as molecular biology, advanced materials, and clinical pharmacology—preserving the integrity of biological samples is paramount. Traditional preservation methods often lead to chemical degradation, structural collapse, or the loss of enzymatic activity.
The Geliss laboratory series represents the pinnacle of sublimation technology, specifically engineered to preserve the original molecular characteristics of biological proteins, volatile compounds, and rare plant extracts.
Designed for university laboratories, core research institutions, and corporate R&D centers, the Geliss laboratory series integrates industrial-grade vacuum control and refrigeration technologies into a compact unit, perfectly meeting the specific needs of a laboratory environment.
LABORATORY-SCALE FREEZE DRYER
FOUR CORE CONFIGURATIONS
One main unit, four interchangeable configurations—perfectly tailored to your needs.
Different research protocols require different sample containers. The Geliss experimental series features highly flexible, interchangeable chamber top assemblies, allowing a single main unit to adapt to four distinct laboratory configurations.
Standard Model — Specialist
for Bulk Materials
Specialized Structure: Fixed multi-layer open trays offering exceptionally high thermal load efficiency.
Suitable For: Open trays, Petri dishes, bulk powders, soil samples, and raw plant extracts.
Process Advantages: Maximizes shelf surface utilization; suitable for non-reactive, non-volatile bulk materials.
Crimp-sealing type — Aseptic
sealing of vials
Specialized mechanism: Equipped with a top-driven manual or pneumatic sealing mechanism.
Applications: Liquid vials, vaccines, antibodies, and injectable biopharmaceutical products.
Process advantages: Stoppers can be securely pressed into place under a pure vacuum or nitrogen-blanketed environment, completely eliminating air contamination.
Manifold Type – Independent
External Flasks
Special Mechanism: Equipped with 8 to 12 independent external rubber valves.
Best Suited For: Round-bottom flasks, wide-mouth flasks, and liquid samples requiring rapid turnaround.
Workflow Advantages: Ideal for continuous-use, multi-user laboratory environments. Flasks can be attached or detached independently without compromising the vacuum in the main chamber.
Manifold-with-Chamber-Lid Configuration – The Ultimate, Fully Featured Flagship Model
Special Mechanism: Integrates a stoppering mechanism with manifold ports.
Ideal Applications: Multidisciplinary core laboratories and highly complex formulations.
Workflow Advantages: Experimental flexibility: allows for the simultaneous drying of bulk samples and the connection of specialized external flasks within a single freeze-drying cycle.
