The Liebherr Scientific Freezer SFFsg 5501 is a professional, upright laboratory freezer in the Performance series, engineered for the secure storage of temperature-sensitive and flammable materials, such as biological samples, reagents, and volatile substances, in laboratories and research facilities. Offering a 499-liter gross capacity and a temperature range of -9°C to -30°C, this freezer ensures reliable preservation with a maximum temperature fluctuation of ±5°C. Featuring a static cooling system with SmartFrost technology, an ATEX-certified spark-free interior, and a hygienic polystyrol liner, the SFFsg 5501 delivers consistent temperature stability and maximum safety. With advanced safety features, SmartMonitoring compatibility, and compliance with DIN 13277, ISO Class 5 cleanroom, and ATEX standards, it is an energy-efficient solution for demanding scientific applications, backed by Liebherr’s 3-year warranty.
Key Features
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Precise Temperature Stability: Maintains a maximum temperature fluctuation of ±5°C, tested to EN 60068-3 standards by measuring temperature at nine points in the interior, ensuring optimal protection for sensitive materials.
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SmartFrost Static Cooling: Reduces frost build-up on the interior and stored products, requiring less frequent defrosting; smooth, easy-to-clean inner walls and an embedded evaporator in foam insulation ensure high energy efficiency and uniform cooling.
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ATEX-Certified Spark-Free Interior: Conforms to EN/IEC 60068-3, EN/IEC 61010-1, and EU Directive 2014/34/EU (ATEX), with an interior rated II 3 G Ex ec IIC T6 (Zone 22), ensuring safe storage of flammable substances in closed containers that could form explosive atmospheres.
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Energy Efficiency: Consumes 501 kWh/year (1.372 kWh/24h) using eco-friendly R290 refrigerant, minimizing operating costs and environmental impact with low global warming potential (GWP).
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Hygienic Design: Commercial-grade, one-piece polystyrol inner liner is robust, odorless, and easy to clean with smooth surfaces, meeting ISO EN 14644-1 Class 5 cleanroom and GMP Class B standards for minimal particulate contamination.
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Advanced Monitoring: 2.4″ touch-screen controller, min./max. temperature log, and HACCP-compliant documentation; optional SmartMonitoring via retrofittable WiFi/LAN interface for cloud-based temperature monitoring and alarms.
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Safety and Security: Equipped with a mechanical lock with two keys, visual/audible alarms for temperature deviations, power failure, and sensor defects, volt-free alarm contact for external systems, +2°C SafetyDevice to prevent over-freezing, antimicrobial handle reducing bacteria by up to 99.99%, and an alarm test function for system reliability.
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Flexible Configuration: Reversible door hinges (factory-set to right) without additional parts, 4 adjustable plastic-coated wire shelves (60kg load each), 8 robust drawers (25kg each), and 2 baskets for optimized storage; feedthrough for external sensors enhances installation flexibility.
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User-Friendly Controls: Flush-integrated control panel with a dirt-resistant membrane keyboard, self-explanatory menu with three touch buttons, demo mode for training, and support for 19 languages; displays serial and service numbers for easy access.
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Low Maintenance: Operates without filters, with manual defrost and replaceable plug-in door seals for tool-free replacement; self-closing door (<90°) enhances convenience; requires only regular cleaning and calibration; operates quietly at 49 dB(A).
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Robust Construction: Durable steel exterior and commercial-grade polystyrol interior ensure a 15-year service life, with 10 years of spare parts availability; adjustable feet for stability on uneven surfaces.
Applications
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Chemical and Pharmaceutical Laboratories: Safely stores flammable solvents and chemicals in closed containers, ensuring compliance with ATEX safety standards.
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Biological and Medical Research: Preserves biological samples, cell cultures, and reagents with precise temperature control for reliable research outcomes.
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Cleanroom Environments: Certified for ISO Class 5 cleanroom and GMP Class B use, ideal for applications requiring strict hygiene and low particulate contamination.
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Healthcare Facilities: Provides secure storage for medical samples and vaccines, with monitoring features to meet stringent quality requirements.
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Industrial Research: Supports storage of temperature-sensitive and combustible materials in controlled and hazardous environments, meeting safety and compliance standards.
