-80°C Ultra Low Temp Upright Freezer DW-86L

Haier's third-generation ULT freezers are designed with technology that improves energy efficiency. The TwinCool technology provide optimal reliability, longevity, efficiency, and sample protection.

Two independent refrigeration systems ensure samples are fully protected under worst-case conditions, depending on load demands and ambient conditions. Additionally, each system is capable of maintaining -80°C separately.

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Overview

Haier Biomedical's ultra-low temperature freezers feature TwinCool technology, providing optimal reliability, longevity, efficiency, and sample protection. Two independent refrigeration systems ensure samples are fully protected under worst-case conditions, depending on load demands and ambient conditions.

Key Features

TwinCool Technology: Ensures maximum sample protection with two independent refrigeration systems.
Fast Pulldown: The cabinet pulldown is fast and efficient, taking an average of three hours to reach -80°C at 25°C ambient. This ensures that the temperature recovers quickly after a door opening, minimising exposure of stored samples to undesirable temperatures.
Energy Efficiency: These freezers are highly energy-efficient, consuming only 8.2 kWh/day of power.
Low Noise Operation: The innovative refrigeration design and adaptive control technology reduce operational noise to 43.5 dB(A).
Insulated Inner Doors: Features insulated inner doors with four separate storage compartments to minimise frost buildup and allow independent access for maximum sample protection.
Precise Temperature Control: The microprocessor-controlled system maintains temperatures between -40°C to -86°C with 1°C increments.
VIP Insulated Panels: Ensure efficient thermal insulation, reducing energy consumption and maintaining consistent internal temperatures.
Advanced Security: Includes a user-settable protection code, voltage compensation system, and protection against extremely high voltages. Improved handle design with a unique key prevents access by other Haier freezer owners, with space for a padlock for extra security.

Benefits

Enhanced Sample Protection: The TwinCool technology and insulated inner doors provide superior protection for valuable samples, even under adverse conditions.
Operational Efficiency: Fast pulldown and recovery times minimise the exposure of samples to undesirable temperatures, ensuring they remain in optimal conditions.
Cost Savings: The energy-efficient design and low power consumption reduce operational costs, making these freezers a cost-effective choice for laboratories.

Common Uses

Biomedical Research: Storing biological samples such as DNA, RNA, and proteins at ultra-low temperatures to preserve their integrity for long-term studies.
Pharmaceutical Storage: Keeping vaccines, drugs, and other pharmaceuticals at stable, ultra-low temperatures to maintain their efficacy and shelf life.
Cryopreservation: Freezing cells, tissues, and other biological specimens for preservation in medical, veterinary, and research applications.

Additional Features

Malfunction Alarms: Includes alarms for high and low temperatures, power outages, sensor errors, high and low voltage, clean-filter, and high ambient conditions.
Secure Access: The improved handle design with a unique key prevents unauthorised access, with space for an additional padlock for extra security.
Innovative Design: The specialised control system with built-in protection features ensures reliable operation under a variety of conditions.

Haier Biomedical's -86°C ultra-low temperature freezers are designed to meet the highest standards of reliability and efficiency, making them an excellent choice for laboratories where sample protection, operational efficiency, and cost savings are top priorities.

Specifications

Dimensions

	DW-86L338J	DW-86L388J	DW-86L490J	DW-86L578J	DW-86L728J	DW-86L828J	DW-86L959BP
External
WxDxH (mm)	830x893x1846	812x980x1980	860x900x1980	903x980x1960	1049x980x1980	1145x980x1980	1296x998x1980
Internal
WxDxH (mm)	465x630x1165	465x716x1310	590x630x1310	620x716x1310	766x716x1310	870x716x1310	1016x716x1310
Packing
WxDxH (mm)	875x970x2010	893x1078x2135	925x985x2150	950x1055x2125	1090x1050x2150	1190x1045x2150	1365x1105x2150

Technical Specifications

	DW-86L338J	DW-86L388J	DW-86L490J	DW-86L578J	DW-86L728J	DW-86L828J	DW-86L959BP
Technical Data
Cabinet Type	Upright	Upright	Upright	Upright	Upright	Upright	Upright
Climate Class	N	N	N	N	N	N	N
Cooling Type	Direct Cooling	Direct Cooling	Direct Cooling	Direct Cooling	Direct Cooling	Direct Cooling	Direct Cooling
Defrost Mode	Manual	Manual	Manual	Manual	Manual	Manual	Manual
Refrigerant	HC	HC	HC	HC	HC	HC	HC
Sound Level ((dB(A))	50	50	50	50	50	50	47
Performance
Cooling performance (°C)	-86	-86	-86	-86	-86	-86	-86
Temperature Range (°C)	-40～-86	-40～-86	-40～-86	-40～-86	-40～-86	-40～-86	-40～-86
Control
Controller	Microprocessor	Microprocessor	Microprocessor	Microprocessor	Microprocessor	Microprocessor	Microprocessor
Display	LED	LED	LED	LED	LED	LED	LED
Electrical Data
Power Supply (V/Hz)	220～240/50	220～240/50	220～240/50	220～240/50	220～240/50	220～240/50	208～230/50/60
Power (W)	650	650	900	750	1000	1000	1300
Electrical Current (A)	7.5	5	8	7.5	10	10	7
Capacity
(L/Cu.Ft)	338/11.9	388/13.7	490/17.3	578/20.4	728/25.7	828/29.2	959/33.9
Loading Quantities
Container Load (20'/40'/40'H)	12/24/24	12/24/24	12/24/24	12/24/24	12/20/20	8/20/20	8/16/16
Net/Gross Weight (kg) (approx)	238/278	255/286	295/335	300/330	345/385	380/410	450/485

Features

	DW-86L338J	DW-86L388J	DW-86L490J	DW-86L578J	DW-86L728J	DW-86L828J	DW-86L959BP
Caster	✔	✔	✔	✔	✔	✔	✔
Foot	✔	✔	✔	✔	✔	✔	✔
Porthole	✔/2	✔/2	✔/2	✔/2	✔/2	✔/2	✔/2
Shelves/Inner doors	3/2	3/2	3/4	3/4	3/4	3/4	3/4
USB Interface	✔	✔	✔	✔	✔	✔	✔
Remote Alarm	✔	✔	✔	✔	✔	✔	✔
5V Power Supply Port	✔	✔	✔	✔	✔	✔	✔
Temperature Recorder	Optional	Optional	Optional	Optional	Optional	Optional	Optional
Rs232/485 Interface	Optional	Optional	Optional	Optional	Optional	Optional	✔
CO2 Backup System	Optional	Optional	Optional	Optional	Optional	Optional	Optional
LN2 Backup System	Optional	Optional	Optional	Optional	Optional	Optional	Optional

Safety

	DW-86L338J	DW-86L388J	DW-86L490J	DW-86L578J	DW-86L728J	DW-86L828J	DW-86L959BP
High/Low Temperature	✔	✔	✔	✔	✔	✔	✔
Hot Condenser	✔	✔	✔	✔	✔	✔	✔
Power Failure	✔	✔	✔	✔	✔	✔	✔
Sensor Error	✔	✔	✔	✔	✔	✔	✔
Low Battery	✔	✔	✔	✔	✔	✔	✔
High Ambient Temperature	✔	✔	✔	✔	✔	✔	✔
Door Ajar	✔	✔	✔	✔	✔	✔	✔

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Support & FAQs

At Thermoline, we strive to supply helpful customer support to ensure that you get the most out of our products. We are committed to providing whatever support our customers need, wherever they are in the world. If you can't find your solution in the below FAQs or Knowledge Base, please contact our friendly support team.

How often should you defrost a lab freezer?

The frequency of defrosting a lab freezer depends on the model and the usage pattern. However, it is generally recommended to defrost a lab freezer at least once or twice a year to maintain its optimal performance.

A buildup of ice in the freezer can reduce its efficiency and increase the risk of freezer burn, damaging the quality of the samples stored inside. It can also increase the risk of mechanical failure, leading to costly repairs or even loss of samples.

Following the manufacturer's instructions for defrosting the freezer is important, as the process may vary depending on the model. Generally, defrosting should be done when the freezer is relatively empty, with the samples stored elsewhere temporarily. The freezer should be turned off and allowed to thaw completely before cleaning and restarting.

In addition to regular defrosting, keeping the freezer clean and well-maintained is vital to ensure its longevity and reliability.

What different types of laboratory freezer are available?

There are several types of laboratory freezers available, including:

Upright freezers: These freezers have a vertical orientation and are available in a range of sizes, from under benchtop models to large capacity units that can store hundreds of samples. Upright freezers typically have several shelves, drawers or compartments for easy organisation of samples.
Chest freezers: Chest freezers have a horizontal orientation and are often used for storing large or bulky items. They are more energy efficient than upright freezers and can provide longer holdover times during power outages.
Biomedical Chest Freezers: These -60°C chest freezers are suitable for storing a wide variety of biological products including viruses, bacteria, blood cells, skin and bone as well as ocean-going supplies and electronic devices.
Ultra-low temperature freezers: These freezers provide even lower temperatures, down to -80°C. They are often used for long-term storage of biological specimens, vaccines, and other critical materials.

What is an ultra low freezer?

These are freezers designed specifically for laboratories to preserve biological samples. These provide a stable temperature from -40C right down to -80C

How does an ultra low freezer work?

Ultra Low Freezers make use of cascade refrigeration. A cascade refrigeration system is a type of refrigeration system that uses two or more refrigeration cycles operating at different temperature levels to achieve extremely low temperatures. It is commonly used when standard refrigeration systems cannot achieve the desired temperature range.

In a cascade refrigeration system, two or more refrigeration cycles are arranged in series, with the evaporator of one cycle serving as the condenser of the next cycle. The cycles are typically designed to operate at different temperature levels, with the coldest cycle being used to achieve the desired low temperature.

What is the temperature range for ultra low freezer?

The temperature range for ultra-low freezers is typically between -80°C and -40°C. These freezers are designed to maintain extremely low temperatures for long-term biological and other temperature-sensitive materials storage. They are commonly used in research and clinical laboratories, biobanks, and other facilities where the storage of valuable samples and specimens is required.

Most ULTs create a consistent environment where the freezer's internal temperature remains between -70°C and -80°C.