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Ultra-low temperature freezer, 729L capacity, -85°C cooling, natural convection, advanced temperature control. Status: open State: new Price: 990000 Price_From: null Amount: 1 External_ID: 6545 Weight: 283 Width: 103 Height: 199.3 Length: 88.2 Shipping_Info: null Delivery_Info: null Additional_Info: Unused condition, three-phase 200V specification, suitable for bioprocessing cold storage Product_Details: [ {"name": "External Dimensions (W×D×H)", "value": "1030 × 882 × 1993 mm", "category": "Physical", "position": 1, "source": "product description"}, {"name": "Internal Dimensions (W×D×H)", "value": "870 × 600 × 1400 mm", "category": "Physical", "position": 2, "source": "product description"}, {"name": "Effective Storage Volume", "value": "729 L", "category": "Performance", "position": 3, "source": "product description"}, {"name": "Exterior Material", "value": "Painted steel plate", "category": "Physical", "position": 4, "source": "product description"}, {"name": "Interior Material", "value": "Painted steel plate", "category": "Physical", "position": 5, "source": "product description"}, {"name": "Door Type", "value": "1 painted steel outer door, 2 inner doors/gaskets (vertical/horizontal)", "category": "Physical", "position": 6, "source": "product description"}, {"name": "Insulation Material", "value": "Rigid polyurethane foam + vacuum insulation panel (VIP PLUS 20mm)", "category": "Performance", "position": 7, "source": "product description"}, {"name": "Shelves", "value": "3 stainless steel shelves (50 kg load capacity each)", "category": "Physical", "position": 8, "source": "product description"}, {"name": "Measurement Ports", "value": "3 total; Φ17 mm each (rear upper/back left & right bottom)", "category": "Performance", "position": 9, "source": "product description"}, {"name": "Access Ports", "value": "1 auto, 1 manual", "category": "Physical", "position": 10, "source": "product description"}, {"name": "Lock", "value": "Cylinder lock with embedded latch on outer door", "category": "Physical", "position": 11, "source": "product description"}, {"name": "Casters", "value": "4 casters with 2 horizontal adjustment bolts", "category": "Physical", "position": 12, "source": "product description"}, {"name": "Weight", "value": "283 kg", "category": "Physical", "position": 13, "source": "product description"}, {"name": "Cooling Circuit", "value": "Dual refrigeration circuits", "category": "Performance", "position": 14, "source": "product description"}, {"name": "Cooling Method", "value": "Natural convection", "category": "Performance", "position": 15, "source": "product description"}, {"name": "Compressor Power High/Low", "value": "750 W / 750 W", "category": "Electrical", "position": 16, "source": "product description"}, {"name": "Cooler Type", "value": "Tube-on-sheet", "category": "Performance", "position": 17, "source": "product description"}, {"name": "Condenser Type High/Low", "value": "Fin and tube / shell and tube", "category": "Performance", "position": 18, "source": "product description"}, {"name": "Refrigerant High/Low", "value": "Hydrocarbon refrigerant (non-fluorocarbon)", "category": "Performance", "position": 19, "source": "product description"}, {"name": "Power Supply", "value": "Three-phase 200 V, 50/60 Hz", "category": "Electrical", "position": 20, "source": "product description"}, {"name": "Rated Power Consumption 50/60Hz", "value": "540 W / 550 W", "category": "Electrical", "position": 21, "source": "product description"}, {"name": "Power Capacity 50/60Hz", "value": "20 A / 20 A", "category": "Electrical", "position": 22, "source": "product description"}, {"name": "Maximum Heat Emission 50/60Hz", "value": "3672 kJ/h / 3600 kJ/h", "category": "Performance", "position": 23, "source": "product description"}, {"name": "Cooling Performance", "value": "-85 °C (ambient 30 °C, no load)", "category": "Performance", "position": 24, "source": "product description"}, {"name": "Temperature Control Range", "value": "-85 °C to -40 °C (ambient 5-30 °C, no load), may vary by serial number", "category": "Performance", "position": 25, "source": "product description"}, {"name": "Temperature Control Method", "value": "Microcomputer control", "category": "Performance", "position": 26, "source": "product description"}, {"name": "Temperature Display", "value": "LCD with touch panel", "category": "Performance", "position": 27, "source": "product description"}, {"name": "Alarm Systems", "value": "High temp, low temp, filter, door, power failure, battery, remote alert outputs", "category": "Performance", "position": 28, "source": "product description"}, {"name": "Memory Backup", "value": "Non-volatile memory backup", "category": "Performance", "position": 29, "source": "product description"}, {"name": "Status Monitor", "value": "Display for abnormal installation environment and overload", "category": "Performance", "position": 30, "source": "product description"}, {"name": "Self-Diagnosis Function", "value": "Sensor abnormality warnings with flashing text and buzzer", "category": "Performance", "position": 31, "source": "product description"} ]
The PHCbi MDF-DU702VH Ultra-Low Temperature Freezer offers a 729-liter capacity with advanced dual refrigeration circuits and natural convection cooling to achieve stable -85°C temperatures, ideal for molecular diagnostics, bioprocessing cold storage, and cryogenic sample preservation. Constructed with painted steel interiors and exteriors, it features rigid polyurethane plus vacuum insulation panels minimizing thermal loss. The unit includes three robust stainless steel shelves supporting up to 50 kg each, three measurement ports (Φ17 mm), and automated/manual access ports for process integration. Equipped with a microcomputer controller and LCD touch panel, precise temperature regulation between -85°C and -40°C ensures consistent low-temperature maintenance critical for synthetic biology and gene editing workflows. Comprehensive alarm systems monitor temperature deviations, filter status, doors, power issues, and include remote alarm outputs, enhancing operational safety in biomedical engineering contexts. Power supply is three-phase 200V with efficient compressor units rated at 750 W each, balancing performance and energy consumption. Its durable caster wheels and locking cylinder provide mobility and security essential for laboratory environments. This unused freezer supports essential biomanufacturing applications requiring reliable and stable ultra-low temperature storage.
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With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.
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Two to six weeks, depending on refurbishment scope and whether calibration is included.
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Last updated 19 October 2026
The middle half of the 721 with a price runs from €224 to €4,236.
9 other listings of this model are available.
