MDF-DC700VX TwinGuard ULT Chest Freezer

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

TwinGuard -86˚C MDF-DC700VX chest 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.

Improved Temperature Performance

TwinGuard chest freezers 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.

The TwinGuard range is available in tree 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 Litre
  • Filterless Design
  • LCD touch panel
  • USB Port
  • Panasonic designed refrigeration system

Product Specification

External Dimensions (W x D x H)2300 x 845 x 1070 mm 1)
Internal Dimensions (W x D x H)1480 x 640 x 756 mm
Volume715 litres
Net Weight358 kg
Capacity520 x 2 inch boxes
Cooling performance-86C
Temperature setting range-50 to -90C
Temperature control range-50 to -86C
DisplayLCD Touch Screen
Temperature sensorPt-1000
Refrigeration systemIndependent Dual-Cooling
Compressors2 x 1100 W
RefrigerantHFC mixed
Insulation materialPUF / VIP Plus
Insulation thicknessFront 70
Exterior MaterialPainted Steel
Interior MaterialStainless Steel
Outer Lid 1
Outer Lid Lock Y
Inner Lid3 pieces (Styrofoam)
Access Port 1
Access Port PositionBack
Access Port Diameter17 mm
Power FailureV-B-R
High TemperatureV-B-R
Low TemperatureV-B-R
FilterFilterless design
Lid openV-B
Electrical and Noise Level 
Power Supply230 V
Frequency50 Hz
Noise Level52 dB [A]
Liquid CO2 back-upMDF-UB5-PW
Temperature recorders 
- Circular typeMTR-G85C-PE
- Chart paper RP-85-PW
- Ink penPG-R-PW
- Continuous strip typeMTR-85H-PW
-Ink pen DF-38FP-PW
- Recorder housingMTR-G85C-PE
Optional communication systems 
Ethernet interface (LAN)MTR-L03-PW
Digital interface (RS232C/RS485)MTR-480-PW
1) 1) Exterior dimensions of main cabinet only 
>TwinGuard ULT Freezers Brochure
>Instruction Manual MDF-DC-500/700VX-PE
>TwinGuard Technical Bulletin - Dual Cooling System
>TwinGuard Freezers Customer Testimonial - The Pirbright Institute, UK
>TwinGuard Freezers Customer Testimonial - The International Hereditary Cancer Center
>TwinGuard ULT Chest Freezer MDF-DC700VX - Product Sheet

This is a testing block.

This is a testing block.