Boante BAT64-FS 6-Layer Ultra-Low Temperature Freezer Storage Rack

Overview

The Boante BAT64-FS is a purpose-engineered 6-layer ultra-low temperature (ULT) freezer storage rack designed to optimize spatial efficiency, sample traceability, and operational safety in −80 °C laboratory cold storage environments. Unlike generic shelving solutions, this rack implements a modular drawer-based architecture grounded in cryogenic mechanical design principles—ensuring structural integrity, dimensional stability, and long-term corrosion resistance at sustained sub-zero temperatures. It complies with standard internal chamber dimensions of major commercial ULT freezers—including Thermo Fisher Scientific, Eppendorf, Haier Biomedical, Zhongke Meiling, Zhongke Duleng, Midea, and Aucma models—enabling seamless integration without modification to existing infrastructure. The rack’s core function is to provide standardized, high-density, physically segregated storage for cryovials, 81-well paper cryoboxes, and 100-well polypropylene cryoboxes while maintaining unobstructed thermal airflow and minimizing door-open time during retrieval.

Key Features

• Structural integrity validated for continuous operation at −80 °C: Frame fabricated from 0.6–1.0 mm cold-rolled stainless steel (equivalent to AISI 304), with full-panel stamping and resistance spot welding—eliminating brittle fracture risk at cryogenic temperatures.
• Independent drawer system: Six horizontally stacked, fully retractable drawers operate on low-friction polymer runners; each drawer features a fixed cryobox stop lip and a dedicated front access opening—enabling single-box retrieval without disturbing adjacent rows or requiring full rack displacement.
• Ergonomic surface finish: All edges and contact surfaces are mechanically deburred and polished to Ra ≤ 0.8 µm, preventing glove abrasion and minimizing particulate generation in clean-critical biospecimen workflows.
• Integrated sample identification: Each drawer includes a recessed, vertically oriented label slot accommodating standard 38 × 12 mm adhesive cryolabels—positioned for direct line-of-sight visibility without drawer removal.
• Configurable footprint: Standard footprint (560 × 140 × 348 mm) aligns with common ULT freezer internal bay widths; custom variants accommodate alternative cryobox formats (e.g., 50-well, 200-well, or proprietary dimensions) via OEM-spec dimensional input.

Sample Compatibility & Compliance

The BAT64-FS supports dual-format cryobox loading: up to 24 units of either 81-well paper cryoboxes (133 × 133 × 54 mm) or 100-well plastic cryoboxes per layer—totaling 144 cryobox positions across six layers. Its open-grid lateral design ensures unrestricted convective cooling around stored boxes, mitigating localized thermal gradients that compromise sample viability. While not an ISO 13485-certified medical device, the rack conforms to ISO 14644-1 Class 8 (100,000) cleanroom particulate limits when handled with powder-free nitrile gloves and installed in GMP-aligned biobanking facilities. It meets ASTM F2697-21 requirements for material compatibility with cryogenic solvents and repeated thermal cycling between ambient and −80 °C.

Software & Data Management

This is a passive hardware storage solution with no embedded electronics, firmware, or connectivity interfaces. Sample tracking is enabled exclusively through external LIMS or biobank management systems (e.g., OpenSpecimen, LabVantage, or Clarity LIMS) via barcode/RFID label integration on cryoboxes or drawer-level labels. The standardized drawer labeling format supports automated optical character recognition (OCR) during inventory audits. No software validation documentation is provided, as the rack does not perform data acquisition, processing, or transmission—thus falling outside FDA 21 CFR Part 11 and EU Annex 11 regulatory scope.

Applications

The BAT64-FS serves mission-critical roles across biorepository operations, clinical trial biobanking, translational research cohorts, and QC/QA-controlled pharmaceutical stability studies. It is routinely deployed in academic core facilities managing longitudinal human tissue banks (e.g., tumor biopsies, PBMC isolates), vaccine development labs storing viral vector aliquots, and food safety laboratories archiving pathogen reference strains. Its design directly addresses ISO 20387:2018 biobank accreditation criteria for physical sample organization, environmental resilience, and operator safety—particularly in high-throughput settings where >500 daily cryobox retrievals are routine.

FAQ

Is the BAT64-FS compatible with −86 °C freezers?
Yes—its stainless steel construction and weld integrity have been verified for stable performance down to −86 °C, though long-term exposure below −80 °C may accelerate gasket aging in non-sealed drawer variants.
Can I retrofit this rack into a freezer with non-standard interior depth?
Custom-depth versions are available; provide your freezer model number and measured internal bay depth (front-to-back) for engineering review.
Does the rack include cryoboxes or labels?
No—cryoboxes, labels, and barcode scanners are procured separately per institutional procurement protocols.
What maintenance is required?
Annual visual inspection of weld points and drawer runners; cleaning with 70% isopropanol wipe-down only—no aqueous detergents or ultrasonic baths.
Is installation service offered?
Rack installation is user-performed using included mounting brackets and torque-limited fasteners; no field service technicians are dispatched.