LabCompanion C-60-W056 Ultra-Low Temperature Horizontal Freezer

Overview

The LabCompanion C-60-W056 is a horizontally configured ultra-low temperature (ULT) freezer engineered for stable, long-term cryogenic storage of sensitive biological and material samples. Designed around a self-contained cascade refrigeration architecture, it achieves and maintains setpoint temperatures from –25 °C to –65 °C with high thermal stability and uniformity across the chamber volume. Its operational principle relies on a single-stage, optimized cascade system utilizing environmentally compliant hydrocarbon-based refrigerant blends—fully chlorine-free and compliant with Montreal Protocol requirements. The unit is purpose-built for laboratories requiring reliable cold chain integrity in environments where ambient conditions range between 10 °C and 30 °C, and where electrical supply may fluctuate within a wide input band (187–242 VAC, 50/60 Hz). Structural integrity is reinforced by 150 mm polyurethane foam insulation and dual-gasket door sealing, minimizing thermal leakage and reducing energy demand per storage kilogram.

Key Features

• Microprocessor-based digital temperature controller with 0.1 °C resolution and adjustable differential setpoints for compressor cycling;
• Multi-level alarm system including audible (buzzer) and visual (LED flash) alerts for high/low temperature excursions, sensor failure, and door-open events;
• Redundant safety protections: password-protected parameter access, anti-short-cycling logic, and fail-safe refrigeration continuity during sensor fault conditions;
• Food-grade stainless steel interior chamber (304 grade), corrosion-resistant and compliant with ISO 13485-aligned cleanroom handling standards;
• EBM Germany-sourced low-noise centrifugal fan for consistent air circulation and minimized acoustic emission (<42 dB[A] at 1 m);
• Heavy-duty swivel casters with locking brakes enabling safe repositioning on laboratory flooring without disassembly;
• Top-mounted control panel with backlit LED display for ergonomic operation and real-time visibility under standard lab lighting.

Sample Compatibility & Compliance

The C-60-W056 supports storage of diverse cryosensitive materials including primary human cells (e.g., PBMCs, hematopoietic stem cells), viral vectors, genomic DNA/RNA extracts, tissue specimens (skin, bone, cornea), semen and oocyte cryovials, and temperature-sensitive electronic components. Chamber geometry and airflow design ensure minimal thermal gradient deviation (< ±2.5 °C at steady state per IEC 61000-4-2 validation protocols). While not certified to UL 471 or NSF/ANSI 456, the unit adheres to general electrical safety requirements per GB 4706.1 (equivalent to IEC 60335-1) and electromagnetic compatibility per GB/T 17626 series. It meets baseline environmental compliance for R&D use under GLP-aligned workflows and supports audit-ready documentation when paired with optional data logging modules.

Software & Data Management

The base configuration includes local digital temperature monitoring with non-volatile memory retention. As an optional upgrade, a CE-marked digital temperature data logger can be integrated—featuring internal flash storage (≥30 days at 10-min intervals), USB 2.0 interface for secure data export to encrypted USB drives, and timestamped CSV output compatible with LIMS platforms (e.g., LabWare, STARLIMS). The logger complies with ALCOA+ principles for raw data integrity and supports configurable alarm thresholds aligned with USP and EU GMP Annex 15 cold chain validation guidelines. Audit trail functionality—including user ID, parameter change timestamps, and event logs—is retained for ≥12 months.

Applications

This ULT freezer serves mission-critical roles across academic research (e.g., cryopreservation in developmental biology labs), biopharmaceutical QC/QA (storage of reference standards and stability batches), clinical biobanking (ISO 20387-compliant sample archiving), marine biotechnology (deep-sea organism preservation), defense-related materials testing (thermal shock evaluation of composites), and semiconductor R&D (low-temperature characterization of cryo-CMOS devices). Its robust construction and voltage tolerance make it suitable for field-deployable mobile labs and off-grid installations equipped with regulated AC inverters.

FAQ

What is the minimum achievable temperature for the C-60-W056 model?

The unit is rated for continuous operation down to –65 °C under standard ambient conditions (25 °C, 60% RH).
Does this freezer support 21 CFR Part 11-compliant electronic records?

The optional data logger module provides time-stamped, user-authenticated records; however, full Part 11 compliance requires site-specific validation and supplementary IT controls.
Is remote monitoring capability available?

No native Ethernet or Wi-Fi interface is included; integration with building management systems requires third-party analog/digital I/O adapters.
What maintenance intervals are recommended for optimal performance?

Condenser coil cleaning every 6 months and annual verification of door gasket compression force and temperature uniformity per ISO 14644-3 Annex B protocols are advised.
Can the unit operate reliably at 30 °C ambient temperature?

Yes—its thermal design accommodates up to 30 °C ambient with ≤80% relative humidity, though recovery time after door opening increases by ~18% versus 20 °C operation.