Vacc-Safe Air Cooling -40°C ULT Freezer - VS-40L628F

The Vacc-Safe VS-40L628F is an air-cooled ultra-low temperature freezer engineered for the reliable storage of vaccines, biological samples, and other temperature-critical materials that require deep sub-zero conditions. It delivers a temperature range of -20°C to -40°C using forced air circulation cooling and a stealth automatic defrost cycle that limits temperature rise to less than 4°C during defrosting — minimizing disruption to sensitive stored contents. With a capacity of 628 liters (22.18 cu.ft) and internal dimensions of 690/672/1369 mm, the unit offers ample interior space across four adjustable stainless steel shelves, housed within a durable stainless steel liner (SUS 304) that's easy to clean and built to last. Performance is impressive for an air-cooled unit of this type, with typical prototype testing showing temperature uniformity of just 1.2°C, fluctuation of 2.3°C, and a noise level of 49.9 dB(A).

Built with a cold rolled steel exterior and a single R290 refrigerant compressor, the VS-40L628F is designed to operate reliably in ambient temperatures between 10°C and 32°C (Climate Class SN), drawing 5.0 A at 220-240V/50Hz (or 6.5 A at 60Hz). R290 is an HC (hydrocarbon) refrigerant chosen for its environmental friendliness and extremely low GWP, and the unit is compliant with EU Regulation No. 517/2014. Insulation thickness varies by wall — 84.5 mm on the door, 80 mm on the left/right sides, and 85 mm on the back — helping the unit hold its extreme low temperatures efficiently.

Safety and data integrity are central to the VS-40L628F's design. A microprocessor controller with 0.1°C increment digital display provides precise monitoring, backed by a comprehensive alarm system covering high/low temperature, high ambient temperature, power failure, low battery, disconnected data logger, sensor error, communication error, door ajar, and hot condenser conditions — all with visual and audible alerts. A backup battery maintains real-time temperature display and alarm functionality for up to 48 hours during a power outage, giving significant peace of mind for irreplaceable stored materials. The built-in data logger records readings every 10 minutes, stores up to 100,000 data sets, and can export up to 12 months of data via USB — supporting robust compliance and traceability documentation. Remote Alarm Contact and RS485 interfaces allow integration with external monitoring systems.

Practical features round out the unit's design: a labor-saving handle eases door operation, an access port (Ø23 mm) allows for third-party temperature monitoring probes to pass through the cabinet wall, and dedicated air ducts support consistent air circulation throughout the interior. The unit rolls on four casters — two with brakes — plus two adjustable leveling feet, for stable positioning and easy repositioning as needed. At 182 kg net weight (205 kg gross), the Vacc-Safe VS-40L628F offers a dependable, well-monitored, and precisely controlled ultra-low temperature storage solution suited to vaccine storage, laboratories, and other applications demanding stringent cold-chain integrity.

MAIN FEATURES:

• HC Refrigerant: R290, environment-friendly, extremely low GWP, REGULATION (EU) No 517/2014 compliant
• Stainless Steel Liner: Easy to clean and durable
• Safety System: Visual and audible alarm, high temp., low temp., sensor error, high ambient temp., etc., ensuring safety storage
• Minor Fluctuation: Temp raising <4°C during defrost
• Data Logger: Built-in data logger, can store 100,000 sets of data, and export 12 months' data via USB port
• Backup Battery: Can maintain real-time temperature display and alarms for 48 hours in case of power failure
  

SPECIFICATIONS: