LAUDA Versafreeze VF 55085 C Ultra-Low Temperature Upright Freezer

Overview

The LAUDA Versafreeze VF 55085 C is a high-efficiency upright ultra-low temperature (ULT) freezer engineered for long-term, mission-critical biosample preservation at −86 °C. Designed and manufactured in Germany, it employs a dual-stage cascade refrigeration system utilizing environmentally sustainable natural refrigerants—R-290 (propane) and R-170 (ethane)—with global warming potentials (GWP) of 3 and 6 respectively. This configuration complies with EU F-Gas Regulation (EU) No 517/2014 and supports laboratory decarbonization goals without compromising thermal stability or reliability. The unit integrates an 8-layer insulation architecture combining vacuum-insulated panels (VIPs) and optimized polyurethane foam, achieving exceptional thermal resistance while maximizing internal usable volume relative to footprint. Its water-cooled condenser design minimizes heat rejection into the laboratory environment, reduces acoustic emissions (<48 dB(A)), and enhances spatial efficiency—particularly valuable in densely equipped core facilities and GMP-compliant biobanks.

Key Features

• Upright configuration with 556 L effective storage capacity and stainless-steel interior for corrosion resistance and ease of decontamination
• Vacuum-insulated door and cabinet walls, supplemented by high-density polyurethane foam, delivering industry-leading thermal retention and energy efficiency (9.7 kWh/day at −86 °C)
• Water-cooled condenser system with optional external chiller integration—reducing ambient heat load and enabling stable operation in rooms with limited ventilation or elevated ambient temperatures
• Dual-stage hermetic compressors with oil-free lubrication strategy, ensuring maintenance-free operation and extended service life under continuous duty cycles
• Intelligent touchscreen HMI with password-protected user management, adjustable high/low temperature alarm thresholds, and real-time parameter logging
• Integrated data logger storing ≥30 days of temperature history and alarm events; powered by backup battery to retain functionality during mains failure (up to 6 h hold time at −86 °C)
• Redundant safety systems: electronic door seal monitoring, magnetic gasket design preventing frost lock, and independent overtemperature cut-off circuit
• Two standardized Ø13 mm pass-through ports for external sensor integration (e.g., Pt100 probes), supporting ISO/IEC 17025-compliant validation protocols

Sample Compatibility & Compliance

The VF 55085 C is validated for storage of primary human tissues, cryopreserved cell lines (including iPSCs and CAR-T products), viral vectors, mRNA formulations, and reference standards requiring sustained thermal integrity below −70 °C. Its uniform temperature distribution (±1.5 °C across all zones per ICH Q5C Annex 2 methodology) and rapid recovery after door openings (<5 min to re-stabilize following 30 s exposure) meet stringent requirements for biobanking (ISO 20387:2018) and clinical trial material handling. The system supports 21 CFR Part 11-compliant audit trails when connected via Ethernet to LAUDA’s cloud-enabled monitoring platform. All materials in contact with stored samples conform to USP Class VI biocompatibility standards, and the stainless-steel chamber meets EN 61000-6-3 EMC emission limits for shared laboratory environments.

Software & Data Management

Equipped with embedded Ethernet (TCP/IP) and RS-485 interfaces, the VF 55085 C enables seamless integration into IIoT infrastructure. LAUDA’s proprietary LabManager software provides remote monitoring, configurable alarm escalation (email/SMS), and automated report generation aligned with GLP/GMP documentation practices. Logged temperature data are timestamped with NTP-synchronized accuracy and encrypted at rest. Optional firmware updates deliver enhanced cybersecurity features—including TLS 1.2 encryption, role-based access control, and secure boot verification—ensuring compliance with ISO/IEC 27001-aligned laboratory IT policies.

Applications

• Long-term archiving of genomic DNA, RNA, and FFPE tissue blocks in academic and clinical biorepositories
• Cryostorage of therapeutic cell products under FDA-regulated manufacturing conditions (e.g., ATMPs)
• Stabilization of thermolabile reagents including enzymes, antibodies, and oligonucleotides
• Supporting cold chain validation studies for pharmaceutical development (ICH Q1A–Q1E)
• Backup freezing capacity for liquid nitrogen-dependent workflows, with optional LN₂/CO₂ emergency hold systems maintaining −70 °C for up to 6 h post-power loss

FAQ

What is the temperature uniformity across the chamber at −86 °C?
Temperature variation remains within ±1.5 °C across all measurement points (per ISO 14644-3 mapping protocol) under steady-state conditions.
Does the unit support validation documentation for GxP environments?
Yes—factory-installed IQ/OQ documentation packages are available, and the system is preconfigured for 21 CFR Part 11 electronic records compliance when used with LAUDA LabManager.
Can the freezer operate reliably in ambient temperatures up to 28 °C?
Yes—the refrigeration system is rated for continuous operation within 15–28 °C ambient, with full performance retention verified per EN 60068-2-1/2 environmental testing.
Is remote monitoring possible without additional hardware?
Yes—Ethernet connectivity is standard; no gateway or adapter is required for integration into existing network infrastructure.
What safety certifications does the VF 55085 C carry?
CE marking per Machinery Directive 2006/42/EC, Low Voltage Directive 2014/35/EU, and EMC Directive 2014/30/EU; additionally certified to UL 61010-1:2012 and CSA C22.2 No. 61010-1-12.