Advanced Electric Heating Freeze Dryer

Advanced Electric Heating Freeze Dryer – QualiFD™ Adv EH Series

The QualiFD™ Adv EH Series Advanced Electric Heating Freeze Dryer delivers precise control over shelf heating, programmable freeze-drying cycles, and consistent lyophilization performance. This all-in-one system minimizes contamination risk by integrating pre-freezing, sublimation, and drying within a single chamber. Both manual and automated modes allow flexibility for process development and routine batch operations.

With recipe-driven control, the QualiFD™ Adv EH manages freezing, sublimation, and vacuum drying efficiently. A transparent acrylic chamber door enables full observation of the process, while a safety diaphragm valve allows controlled inert gas backfill after drying.

Enhanced cold-trap ice capture is achieved through a gas diversion system, and PID-controlled shelves maintain uniform temperatures for even drying. The unit features a 7-inch true-color industrial touchscreen with storage for hundreds of recipes, including multi-segment temperature programming for optimized freeze-drying cycles.

Applications

Conventional lab samples (liquids, pastes, solids): The QualiFD™ Adv EH Advanced Electric Heating Freeze Dryer is ideal for freeze-drying a wide range of laboratory materials, including liquids, pastes, and solids. It supports typical lab workflows for improving storage stability, enabling safe transport, or preparing samples for downstream analysis.

Method development and scale-up studies: Manual operation allows precise experimentation with cooling rates, shelf temperature ramps, and vacuum conditions. Multi-segment temperature programming and recipe storage help teams reproduce cycles consistently and document variations during process development.

Routine batch processing with controlled documentation: Automatic mode enables consistent, repeatable freeze-drying once a cycle is defined. Real-time monitoring of key parameters, along with data export capabilities, ensures accurate reporting, trend analysis, and process verification.

Standards

• ISO 13408-3:2006 – Defines requirements and guidance for controlling and validating lyophilization processes in aseptic applications.
• ASTM E3250-21 – Provides best practices for freeze dryer instrumentation, focusing on accurate measurement of product temperature and chamber pressure
• IEC 61010-1 – Specifies general safety requirements for electrical laboratory, measurement, and control equipment to ensure safe operation.

Key Features – Advanced Electric Heating Freeze Dryer (QualiFD™ Adv EH Series)

• Integrated Pre-Freezing and Drying Workflow: Supports automated freeze-drying and sublimation within a single chamber.
• Transparent Acrylic Chamber Door: Allows full observation of the freeze-drying process during operation.
• Safety Diaphragm Inflation Valve: Enables controlled inert-gas connection and post-drying backfill.
• Gas Diversion System: Promotes even ice capture in the cold trap for consistent drying results.
• PID Shelf Temperature Control: Minimizes shelf temperature differences, ensuring uniform drying.
• 7-Inch Industrial Touchscreen: Features modular controller architecture for reliable, stable operation.
• Recipe-Based Control: Stores hundreds of recipes, each with up to 36 temperature control segments for precise cycle management.
• Real-Time Data Monitoring: Displays critical parameters during operation and allows export for analysis, reporting, and record-keeping.
• Alarm System: Visual and historical alarm queries support quick diagnosis and maintenance.
• User Access Management: Password-protected settings ensure controlled operation and secure process management.

Theory and Method

Freeze-drying begins by freezing the material, followed by lowering the chamber pressure to allow ice to sublimate directly from solid to vapor. Controlled shelf heating provides the energy required during primary drying, while the cold trap captures vapor to maintain a stable vacuum environment. Secondary drying continues under carefully regulated temperature and vacuum conditions to remove residual bound moisture.

The system allows precise control over the cooling rate during pre-freezing, as well as sample warming and vacuum adjustments throughout sublimation and desorption stages. Continuous recording of temperature and vacuum profiles enables comparison between cycles and supports process optimization and refinement.

Advanced Electric Heating Freeze Dryer – QualiFD™ Adv EH Series Technical Specification

Specification	QualiFD™ Adv EH
Freeze drying area	0.6 m²
Cold trap temperature	≤ -60 °C (no-load), optional ≤ -80 °C
Vacuum level	≤ 5 Pa (no-load)
Shelf temperature range	-50 to +70 °C (no-load), optional -70 to +70 °C
Water capture capacity	≥ 10 kg/24 h
Material tray size	335 × 295 mm
Number of material trays	6 pcs
Shelf size	340 × 300 mm
Shelf spacing	50 mm
Overall power	4500 W
Weight	450 kg
Dimensions (W×D×H)	795 × 895 × 1535 mm
Loadable materials	6 L/kg (material thickness 10 mm reference)
Defrost mode	Natural defrosting (optional electric defrost)
Voltage	Three-phase 5-wire, 380 V