TwinGuard ULT Freezers (-86°C)

MDF-DC700VX-PE TwinGuard ULT Freezer

Effective capacity
Cooling Performance


Our most secure ultra-low temperature freezers for the storage of high value samples

TwinGuard -86˚C MDF-DC700VX low temperature freezer delivers the unsurpassed level of safety and sample security that is critical for valuable biological samples alongside exceptional ease of use and data monitoring.

Two independent refrigeration systems offer Ultimate Sample Protection

The Dual Cooling System offers the highest level of protection through the use of two independent refrigeration systems. If one system unexpectedly fails the other can maintain the freezer in the -70˚C range.

Valuable Sample Storage

Securely store valuable and irreplaceable samples with the upmost confidence that they won’t be lost in the case of compressor failure.

Significantly extended critical time to react to any sudden mechanical failure. Ideal for high security applications.

Improved Temperature Performance

TwinGuard low temperature freezer maintain even better temperature stability and uniformity during routine door openings than equivalent upright models as less cold air leaves the freezer while the door is open.

Cryo Glove

Combining the Cryo glove 400 with our ULT freezer is an essential practice that prioritizes safety, sample integrity, precision, and adherence to industry standards. It's a small investment that yields significant benefits for both you and your research or laboratory work.

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The TwinGuard range is available in four other models:
Ideally suited for:
  • Temperature sensitive samples such as therapeutics and biospecimens.
  • Samples needing to retain viability such as stem cells, engineered tissue, organs, vaccines, hybrodmas, cancer cells or fibroblasts.
  • Longitudinal study samples
  • Important medical research samples.
  • Valuable pharmaceutical products.
  • Clinical trial samples.
  • Pathogenic samples within high security laboratories.


  • Ultimate Sample Protection with the extreme secure Dual Cooling System.
  • Improved Temperature Performance
  • Enhanced Use & Intelligent Security
  • VIP PLUS provides 30% more storage capacity compared to conventionally insulated freezers of the same footprint.
  • Approximately 15% Energy saving ECO mode operation.
  • Intelligent interface Data log function.
  • Class IIa Medical Device certified


  • 715 Litres
  • Filterless Design
  • LCD touch panel
  • USB Port
  • PHCbi designed refrigeration system


Product Photos


External Dimensions (W x D x H) 2300 x 845 x 1070 mm
Internal Dimensions (W x D x H) 1480 x 640 x 756 mm
Volume 715 litres
Net Weight 358 kg
Capacity (Aluminium Racks 2” Boxes) 520 (2” boxes)
Capacity (Stainless Steel Racks 2” Boxe) -
Cooling Performance -86 °C
Temperature Setting Range -50 to -90 °C
Temperature Control Range -50 to -86 °C
Controller Microprocessor, non-volatile memory
Display LCD Touch Screen
Temperature Sensor Pt-1000
Refrigeration System Independent Dual-Cooling
Compressors 2 x 1100 W
Refrigerant MU-NC700
Insulation Material PUF / VIP Plus
Insulation Thickness 70/135 mm
Exterior Material Painted Steel
Interior Material Stainless Steel
Outer Doors/Lid 1
Outer Door Lock Y
Inner Doors/Lid 3 pieces (Styrofoam)
Shelves -
Max. Load - Per Shelf -
Max. Load - Total -
Vacuum Release Port -
Access Port 1
Access Port Position Back
Access Port Diameter 17
Casters -
Power Failure V-B-R
High Temperature V-B-R
Low Temperature V-B-R
Filter Filterless design
Door Open V-B
Power Supply 230 V
Frequency 50 Hz
Noise Level 52 dB [A]