Drick DRK-75L20FGP Standard Shelf-Type Vacuum Freeze Dryer

Overview

The Drick DRK-75L20FGP is a standard shelf-type vacuum freeze dryer engineered for reliable, reproducible lyophilization in academic research laboratories, quality control environments, and pilot-scale process development. It operates on the fundamental principle of sublimation—removing water from frozen samples under deep vacuum while maintaining product integrity through precise thermal management. The system employs a dual-stage rotary vane vacuum pump (not included) to achieve an ultimate vacuum level of ≤10 Pa in empty chamber conditions, enabling efficient ice sublimation across the 0.2 m² shelf area. Its cold trap, capable of reaching ≤−75 °C, ensures high condensation efficiency for up to 6 L of ice over a 24-hour cycle—sufficient for routine batch processing of biologicals, pharmaceutical intermediates, food extracts, and polymer-based formulations.

Key Features

• Robust stainless-steel chamber and shelf assembly with electropolished finish for corrosion resistance and ease of cleaning.
• Independent temperature control for shelves (−50 °C to +60 °C range, typical configuration) and cold trap (≤−75 °C), supporting both primary drying and secondary drying protocols.
• Integrated vacuum monitoring via digital Pirani gauge with real-time display and programmable setpoints.
• Standard silicone oil heating system for uniform shelf temperature distribution and minimal thermal gradient across the lyophilization surface.
• Front-loading design with reinforced tempered glass door and magnetic seal for visual process monitoring without compromising vacuum integrity.
• Modular architecture compatible with optional accessories including pressure rise test (PRT) modules, vapor pressure monitoring sensors, and sterile air inlet filters (HEPA/0.2 µm).

Sample Compatibility & Compliance

The DRK-75L20FGP accommodates a broad spectrum of sample types—including aqueous solutions, suspensions, emulsions, and viscous gels—across disciplines such as biopharmaceutical research, food science, environmental analysis, and materials characterization. Its construction adheres to ISO 9001-certified manufacturing practices, and its operational parameters align with widely referenced lyophilization standards including USP , ISO 20988:2007 (Biotechnology — Guidelines for lyophilization), and ASTM F2476-20 (Standard Practice for Lyophilization Process Development). While not inherently compliant with FDA 21 CFR Part 11 out-of-the-box, the system supports integration with validated electronic record systems when paired with third-party data acquisition software meeting audit trail and user access control requirements.

Software & Data Management

The freeze dryer includes a built-in microprocessor-based controller with intuitive touch interface, enabling multi-step program storage (up to 32 customizable cycles), real-time parameter logging (shelf temp, chamber pressure, cold trap temp), and USB export of time-stamped CSV files. Optional PC-based software (e.g., Drick LabControl Suite) provides enhanced visualization, alarm history, deviation tracking, and export-ready reports suitable for GLP/GMP documentation workflows. All logged data include timestamps accurate to ±1 second and retain metadata such as operator ID, cycle name, and version-controlled protocol identifiers—facilitating traceability during internal audits or regulatory inspections.

Applications

• Stabilization of heat-labile proteins, enzymes, vaccines, and monoclonal antibodies in preclinical R&D settings.
• Preparation of reference standards and certified reference materials (CRMs) for environmental testing labs (e.g., soil extracts, waterborne pathogen concentrates).
• Drying of botanical extracts, probiotic cultures, and functional food ingredients while preserving bioactivity and volatile compound profiles.
• Processing of ceramic precursors, MOFs, and aerogel precursors requiring solvent removal without structural collapse.
• Routine dehydration of microbial cultures, tissue homogenates, and chromatographic fractions prior to downstream analysis (HPLC, MS, NMR).

FAQ

What is the maximum sample volume this unit can accommodate per batch?
Based on the 0.2 m² shelf area and typical loading depth of 10–15 mm for aqueous solutions, the DRK-75L20FGP supports up to approximately 2–3 L of total solution volume per cycle, depending on vial size, fill height, and formulation viscosity.
Is the vacuum pump included with the system?
No—the DRK-75L20FGP is supplied without a vacuum pump. A two-stage rotary vane pump with minimum pumping speed of 8 m³/h and ultimate vacuum ≤5 × 10⁻² Pa is recommended for optimal performance.
Can this model be upgraded for GMP-compliant operation?
Yes—through integration of qualified peripherals (e.g., calibrated temperature probes, redundant pressure sensors, 21 CFR Part 11–compliant software), IQ/OQ documentation packages, and validation support services offered by Drick’s global application engineering team.
What maintenance intervals are recommended for the cold trap and refrigeration system?
Routine inspection of the cold trap surface for frost accumulation and oil level verification in the compressor circuit should occur every 200 operating hours; full refrigerant charge verification and system leak testing are advised annually or after any major service event.
Does the unit support automatic defrosting of the cold trap?
Yes—the controller includes a timed defrost function that initiates heating of the cold trap coil after completion of the main drying cycle, with configurable duration and temperature limits to prevent thermal shock to the refrigeration system.