TwinGuard ULT Freezers (-86°C) Preservation

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Cooling Performance

PHCbi TwinGuard ULT Freezers

Ultimate security is critical for extremely valuable samples, such as those in the pharmaceutical and biotechnology sector, research institutes or blood and tissue banks. Freezer failure requires swift, effective action to transfer precious samples to a safe, ultra-low temperature environment – often within a matter of hours, even if a failure occurs at night. Any failure, therefore, significantly increases the risk of losing a unique, irreplaceable or potentially life-saving collection of samples. This could halt promising research, delay medical treatments or simply cause substantial financial losses, as well as an administrative nightmare. PHCbi developed Dual Cooling technology specifically to greatly reduce this risk.

Our advanced TwinGuard ULT freezers provide an unparalleled level of safety and added peace of mind through the use of two independent refrigeration systems that reliably maintain an ultra-low temperature environment, even if an unexpected failure should occur in one cooling circuit. PHCbi developed Dual Cooling technology more than five years ago. The world’s first TwinGuard freezer – PHCbi’s MDF-U500VX – was launched in 2010. Following its success, the larger volume MDF-U700VX TwinGuard -86ºC Freezer was first introduced in 2011. Since then, customers with samples that are valuable, irreplaceable, potentially life-saving or have pathogenic implications, such as those stored at The Pirbright Institute, have benefitted from the added assurance, capacity and advanced features of TwinGuard freezers.

Unparalleled performance

Dual Cooling technology differs significantly from conventional cascade refrigeration technology in fundamental design and operation. In Dual Cooling systems, two independent refrigeration systems provide a reliable -86ºC ultra-low temperature environment. Should an unexpected failure occur in one cooling circuit, the other can maintain the freezer in the -70ºC range until service can be arranged. This level of ultra-low temperature back-up cannot be achieved by conventional cascade systems. The unique functionality of Dual Cooling is achieved through the use of two, completely independent, auto-cascade systems– the compressors, evaporators and cooling fans of the two systems operate separately from each other. Two efficient evaporator circuits surround the interior chamber in a strategically-designed arrangement to ensure the highest levels of temperature uniformity with either one or both of the refrigeration systems functioning.