Haier DW-86L490 Ultra Low Freezer

• Long-term preservation of biological samples such as DNA, RNA, proteins, and cell lines in research and clinical laboratories.
• Storage of sensitive reagents, vaccines, and pharmaceutical compounds requiring ultra-low temperatures to maintain efficacy.
• Cryopreservation in biobanks and biorepositories for secure, stable storage of valuable biological materials.
• Use in quality control laboratories for stability testing of products under controlled low-temperature conditions.
• Specialised storage for forensic samples and archaeological specimens requiring extreme temperature stability.

Temperature Range

Typically -40°C to -86°C, offering stable ultra-low temperature operation.

Typical Capacity

For this class of equipment, capacities commonly range from 300 to 700 litres.

Power Supply

Units of this type commonly require a 230V, 50Hz single-phase power supply, with dedicated circuitry often recommended.

Refrigeration System

Typically employs a cascade refrigeration system with environmentally friendly refrigerants.

Insulation

Commonly features multi-layer vacuum insulation panels and foamed-in-place polyurethane for thermal stability.

Access Control

Often includes a secure lockable door and internal sub-compartment doors to minimise temperature fluctuations during access.

• What are the typical space requirements for an ultra-low freezer?

  The footprint for this class of equipment varies, but buyers should anticipate dimensions typically around 800-1000mm width, 900-1100mm depth, and 1900-2100mm height. Exact dimensions should be confirmed with the seller.

• What kind of electrical supply is needed?

• What maintenance is typically required for an ultra-low freezer?

• Is this unit suitable for long-term sample storage?

• What are the considerations for installing an ultra-low freezer?

Laboratory freezers hold strong reputations for reliable sample preservation across biotech and pharmaceutical settings. Buyers typically prioritise temperature stability, storage capacity, and energy efficiency when selecting used units. Key considerations include verifying maintenance history, checking door seals and compressor condition, and confirming accurate temperature control calibration. Industry sentiment values freezers offering consistent performance and minimal sample degradation. Established brands generally command preference due to proven durability. Used models often deliver good value when properly serviced, though buyers should assess age and usage patterns carefully before purchase.

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