ULT freezer is specially designed and manufactured for long term storage of various biological products, including viruses, germs, erythrocytes, leucocytes and cutis. Applications can be found in blood banks, hospitals, epidemic prevention services, and research institutes, laboratories in electronic and chemical plants, biological engineering institutes and marine fishery companies.

 Key Features

Microprocessor-controlled system designed for controlled rage of -40℃ to -86℃ for cabinet space with 1℃ increment

Settable high temperature and low temperature alarms.

Automatic clean-filter alarm and sensor error alert.

Adjustable storage shelf height

Optional temperature recorder. storage racks and storage box

Installation and Application

Wide rage operating voltage system from 187V to 242V designed to allow units installed in areas with poor voltage condition

Suitable for 10℃ to 32℃ambient temperature


Unique insulated inner door design for four separate storage compartments to minimize frost buildup inside the chamber.

Specialized control system design for a well-balanced operation of cascade refrigeration system.

Positive filed proven reliability record.


Malfunction alarms including high and low temperature, power failure, sensor error, clean-filter, and extremely high ambient.

Capable of producing two types of alarm outputs: audible buzzer and visible flashing light.

Door open feature standard and USB port for temperature date downloading standard on upright models.

Remote alarm contacts.

  Energy saving

Unique door seal design for the minimum loss of cold temperature during a door opening.

High performance VIP insulation panels to minimize cabinet heat gain and to improve temperature stability.


Product Photos



-86°C ULT Freezer
Model MDF-86V728
Specificaitons Shelf/drawer QTY Stainless steel shelf/3
Cooling method Direct cooling
Defrost Manual
Refrigerant HC
Energy consumption(kWh/24h) 15.4
Noise(db) 53
Ambient temperature(℃) 10~32℃
Temperature range(℃) -40~-86℃
Cooling system Compressor brand/QTY SECOP/2
Evaporator Submerged coil evaporator
Evaporator material Copper tube evaporator
Condenser Copper tube and finned
Sensor PTC
Temperature controller Microprocessor
Display LCD display
Power Voltage/frequency(V/Hz) 220/50Hz
Power(W) 935
Current(A) 7
Material Inside material Stainless steel
Outside material Color sprayed steel
Insulation PURF
Size Capacity(L/cu.ft) 728/25.70
NT./GT.(kg) 320/350
Exterior size(W*D*H)(mm) 1248×975×1994.5
Interior size(W*D*H)(mm) 963×558×1350
Package size(W*D*H)(mm) 1320×970×2185
Alarm High/low temperature
Power failure
Abnormal voltage
Sensor error
Filter screen check
Thermostat failure
Low battery
Condenser clean
High ambient temperature
Door ajar
Accessories Castor
Inside door 2
Test hole QTY/diameter 1/25MM
USB port
Chart recorder Optional
Data logger Optional
Power failure backup system(alarm) 72h
Remote alarm port
CO2 back up system Optional
LN2 back up system Optional
Others Certification ISO,CE


Contact Us

Anhui Zhongke Duling Commercial Appliance Co., Ltd, is a joint venture founded by the Technical Institute of Physics and Chemistry of CAS and Zhongdu Science and Technology Co., Ltd. We are a high-tech enterprise which specializes in designing and developing medical freezers including ultra-low temperature freezers, deep freezers, blood platelet incubators and custom-made medical freezers.

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