Liebherr SUFsg 5001 Laboratory Ultra-Low Temperature Freezer 477 L -86°C Air-cooled

The Liebherr SUFsg 5001 is a professional laboratory ultra-low temperature freezer from the MediLine series, designed for demanding long-term storage within the extreme temperature range of -40 °C to -86 °C. This model utilises efficient air cooling and is ideal for laboratories requiring the highest level of sample safety without the need for an additional water connection.

Maximum safety for valuable samples

An integrated 3-stage monitoring system protects your stored samples round the clock. In the event of a power cut, an integrated 12-volt battery continues to power the electronics and keeps the power failure alarm active for at least 72 hours. Visual and audible alarms also provide immediate warning in the event of temperature deviations or open doors.

Efficient cascade cooling

The unit utilises advanced cascade cooling with the environmentally friendly refrigerants R 290 and R 170. This combination ensures a rapid cooling time (360 minutes from +22°C to -80°C) and stable temperature maintenance, which is crucial for the integrity of sensitive samples.

High-quality stainless steel interior

The inner chamber is made entirely of stainless steel, making it particularly hygienic, robust and durable. Four sturdy stainless steel shelves (with a load capacity of up to 50 kg) are included as standard. Foam-insulated inner doors minimise cold loss when opened and improve energy efficiency.

Networking and documentation

A data logger with a USB interface is integrated to ensure comprehensive documentation. The unit can be easily integrated into networks via the LAN (Ethernet) interface. A dry contact also enables alarms to be forwarded to external systems.

Technical details

• Gross capacity: 491 l
• Net capacity: 477 l
• Temperature range: -40 °C to -86 °C
• Cooling system: Static, cascade cooling
• Heat dissipation: Air cooling
• Refrigerant: R 290 / R 170
• Cooling time (+22 °C to -80 °C): 360 min
• Safety: Power failure alarm (72 h, battery-backed)
• Controls: 7-segment LED display with buttons
• Inner chamber material: Stainless steel
• Storage: 4 x stainless steel shelves (max. 11 possible)
• Load capacity of shelves: 50 kg
• Interfaces: LAN (Ethernet), USB (data logger), dry contact
• Feed-throughs: 3 x Ø 28 mm (for external sensors)
• Lock: Mechanical
• Noise level: 47 dB(A)
• Voltage: 230 V ~
• Dimensions (H/W/D): 1966 / 920 / 1082 mm
• Net weight: 254 kg

Scope of delivery

• Liebherr SUFsg 5001 (basic unit with air cooling)
• 4 x stainless steel shelves
• 2 x keys (for mechanical lock)
• User manual

Customised requirements & procurement service

Do you require suitable stainless steel or aluminium racks (e.g. for 5x4 or 6x4 boxes), an external CO₂ emergency cooling kit or additional cryoboxes? Our bespoke procurement service will assist you with configuring the interior layout and sourcing accessories.