Froilabo TR Series Aluminum Liquid Nitrogen Cryogenic Storage Dewars

Overview

The Froilabo TR Series represents a purpose-engineered line of static, non-pressurized liquid nitrogen (LN₂) cryogenic storage dewars designed for reliable, long-term preservation of temperature-sensitive biological materials—including stem cells, oocytes, embryos, primary tissues, and archival DNA/RNA samples—at –196 °C. Constructed entirely from high-purity, anodized aerospace-grade aluminum alloy, the TR Series eliminates galvanic corrosion risks associated with stainless-steel–aluminum hybrid vessels while delivering exceptional thermal efficiency through optimized multilayer vacuum insulation (MLI) and hermetically sealed double-walled architecture. Unlike pressurized tanks, the TR Series operates passively under atmospheric pressure, minimizing mechanical failure modes and simplifying regulatory documentation for ISO 13485–certified biobanks and clinical laboratories. Its design adheres to ISO 23775-1:2022 requirements for structural integrity, thermal performance validation, and material traceability—ensuring compatibility with audit-ready quality management systems in academic, pharmaceutical, and diagnostic settings.

Key Features

• Monolithic aluminum alloy construction with electrochemical anodization for enhanced corrosion resistance and non-magnetic sample handling environments
• Vacuum-jacketed double-wall geometry with ≥10-layer MLI wrap, validated via helium leak testing (<1×10⁻⁹ mbar·L/s) and thermal mapping across operational temperature gradients
• Ergonomic, low-center-of-gravity chassis with integrated reinforced carrying handles and optional polyurethane casters (static-load rated to 150 kg)
• Wide-neck aperture (50–125 mm ID) enabling unobstructed access for automated rack insertion, robotic gripper compatibility, and manual retrieval using standard cryo-tongs
• Interchangeable lid configurations: Standard insulated plug, hinged safety lid with gas venting channel, or sensor-integrated smart lid supporting real-time LN₂ level telemetry
• Modular accessory interface (M12 threaded ports, IP67-rated connectors) for seamless integration with third-party monitoring platforms (e.g., TempTrak®, SensiBLE®, or custom SCADA systems)

Sample Compatibility & Compliance

The TR Series accommodates standardized cryogenic storage formats—including 1.2 mL, 2.0 mL, and 5.0 mL external-thread vials; 25 × 25 mm and 30 × 30 mm cane-based racks; and programmable 10×10 or 12×12 matrix boxes—without requiring proprietary consumables. All internal dimensions conform to ANSI/SLAS 1–2022 footprint specifications for interoperability with automated sample management systems. From a regulatory standpoint, the vessel’s material certification (EN AW-5083-H111), vacuum integrity records, and thermal decay test reports support compliance with FDA 21 CFR Part 11 (electronic record controls when paired with validated software), EU Annex 1 (sterile manufacturing environments), and ISO 20387:2018 (biobanking requirements). Each unit ships with a full Declaration of Conformity, traceable serial-numbered MLI batch documentation, and a 3-year limited warranty covering vacuum degradation beyond ISO-specified thresholds.

Software & Data Management

While the base TR dewar functions autonomously, optional digital instrumentation kits enable GLP-compliant data governance. The Froilabo LN₂ Monitor Module (sold separately) provides continuous level sensing via ultrasonic transduction, logs timestamped readings at user-defined intervals (1 min–24 hr), and exports CSV/Excel-compatible files with embedded audit trails (user ID, calibration status, environmental timestamps). When deployed with Froilabo’s CryoLink™ Gateway, data synchronizes securely to cloud-hosted dashboards compliant with IEC 62443-3-3 cybersecurity standards. All firmware updates undergo regression testing per IEC 62304 Class B software lifecycle requirements, and electronic signatures meet ALCOA+ principles for raw data integrity.

Applications

• Long-term archiving of human reproductive tissues in IVF clinics operating under ESHRE and ASRM guidelines
• Cryo-preservation of induced pluripotent stem cell (iPSC) lines in GMP-compliant CMC development workflows
• Field-deployable sample stabilization during multi-site clinical trials (e.g., oncology biomarker collection)
• On-site backup storage for centralized biorepositories undergoing CAP or AABB accreditation
• Controlled-rate freezing support in veterinary tissue banks maintaining USDA-accredited germplasm inventories
• Stable holding of thermolabile reagents (e.g., CRISPR-Cas ribonucleoprotein complexes) prior to single-cell sequencing library prep

FAQ

Is the TR Series suitable for storing vapor-phase liquid nitrogen samples?
Yes—the TR Series supports both liquid-phase immersion and vapor-phase storage (–150 °C to –190 °C), with validated temperature uniformity profiles across all rack positions per ISO 23775-2 Annex B.
Can the dewar be integrated into a facility-wide cryo-monitoring network?
Absolutely—via optional M12 Ethernet or RS-485 interfaces, compatible with BACnet/IP, Modbus TCP, and MQTT protocols for enterprise-level infrastructure integration.
What is the recommended recalibration interval for integrated level sensors?
Annual verification against NIST-traceable ultrasonic reference standards is advised; Froilabo provides certified calibration services with ISO/IEC 17025 accreditation.
Does Froilabo supply validated cleaning and decontamination protocols?
Yes—validated SOPs for autoclave-safe component sterilization (lid gaskets, neck tubes) and LN₂-compatible surface disinfection (per EN 14885) are included in the Technical Dossier supplied with each unit.