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?

Ultra-low freezers commonly require a stable 230V, 50Hz single-phase supply. It is advisable to have a dedicated circuit due to their power consumption, particularly during pull-down and recovery.

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

Regular maintenance commonly includes condenser filter cleaning, defrosting of internal ice build-up, and periodic checks of door seals. Annual professional servicing is often recommended to ensure optimal performance.

Is this unit suitable for long-term sample storage?

Yes, ultra-low freezers like the DW-86L490 are specifically designed for secure, long-term storage of sensitive biological and chemical materials at stable ultra-low temperatures.

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

Installation typically requires a level surface, adequate ventilation around the unit for heat dissipation, and proximity to a suitable power outlet. Consideration for ambient room temperature is also important for efficient operation.

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Used DW-86L490 Ultra Low Freezer - Laboratory Freezers

used Equipment

Available

Verified seller

Haier - DW-86L490 Ultra Low Freezer

Name: DW-86L490 Ultra Low Freezer
Brand: Haier
SKU: 3046101
Availability: InStock

Price: Contact seller for price

This listing is for the Haier DW-86L490 Ultra Low Freezer.

The unit is in full working condition and ready for immediate use.

High-performance ultra-low temperature freezer designed for secure long-term storage of biological samples, reagents, and sensitive materials, offering stable -86°C operation and robust insulation.

Transparency Report and Technical Audit:

Power-On Test: Verified; Digital display active, lighting operational, and fan system engaged.

Notice for Procurement: This unit is sold As-Is. While we verify the power-on status and physical integrity, we do not perform analytical validation, fluidic testing, or operational calibration. Ideal for labs with in-house technical expertise or existing service agreements.

Sustainability Impact: By choosing Direct Reuse, your facility avoids the carbon footprint of new manufacturing and prevents specialized materials from entering waste streams. Direct-to-Lab reuse is the most carbon-efficient way to equip a modern laboratory.

Cambridgeshire, United Kingdom

5,791 km away

Model Number

DW-86L490

Stock Number

3046101

Machinery Masters View

Typical context for this category of equipment. Always confirm specifics with the seller.

Applications & Use Cases

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.

Typical Specifications

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.

Frequently Asked Questions

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.

Machinery Masters Intelligence. General guidance for this category of equipment only, not a substitute for the seller's exact specifications. Always confirm details with the seller.