Cryogenic ULT Freezers (-150°C)

Cryogenic freezers for long-term preservation

Cryogenic ULT freezers are specifically engineered to achieve and maintain temperatures down to -150°C, enabling the long-term preservation of biological samples containing living cells. They are ideally suited for storing highly sensitive materials such as embryos, ova, stem cells, mammalian tissues, plasma components including blood cells, as well as plant cells and seeds.

In laboratory and research environments, safe and reliable storage is essential. PHCbi’s cryogenic freezers are designed to provide optimal storage conditions for biological samples, pharmaceuticals, and other research materials at ultra-low temperatures. Advanced temperature control technologies help safeguard sample integrity, reduce operating costs, and support consistent, high-quality research outcomes.

High-performance temperature regulation for the storage of sensitive samples

Biological samples, pharmaceuticals, and other research materials are highly sensitive to temperature variations. Accurate and stable temperature regulation is therefore essential for secure long-term storage. PHCbi developed the world’s first -152°C ultra-low temperature freezer in 1991, responding to the growing demand for cryopreservation driven by advances such as IVF and stem cell transplantation.

Since then, PHCbi has continuously invested in cryogenic freezer development, introducing improved insulation, advanced refrigeration technologies, enhanced alarm systems, and increased storage capacity. The latest cryogenic models deliver exceptional safety, reliability, and temperature uniformity, supported by more than 20 years of specialist expertise.

ULT Freezers for cryogenic freezing (-150°C) are already in use to store

• Umbilical cord blood for hematopoietic stem and progenitor cells
• Stem cells for autologous transplants after high-dose chemotherapy
• Adipose tissue, epithelial cells, and bone marrow for stem cell therapy
• Blood products for immunology analysis
• Mesenchymal stromal cells for regenerative medicine
• Cancerous tissue samples
• Semen for artificial insemination
• Oocytes and embryos for IVF
• Ovarian tissue for fertility preservation
• Plant seeds and shoots for breeding
• Industrial shrink fitting applications
• Automotive and aerospace temperature testing

Benefits of our cryogenic freezing solutions

PHCbi Cryogenic ULT freezers are engineered to maintain highly precise temperatures with rapid recovery, ensuring optimal protection of biosamples. Mechanical cooling provides a safer and more convenient alternative to liquid nitrogen systems, while still allowing LN₂ back-up options where required.

Storage consistency for precious samples

A high-stage cascade condenser and low-stage tube-on-sheet evaporator ensure even cooling throughout the chamber, preventing temperature fluctuations that could compromise sample integrity.

High-performance insulation and precision cooling

Patented VIP Plus vacuum insulation panels provide outstanding thermal efficiency, maximize usable storage volume, and reduce energy consumption within a compact footprint.

Low operating costs with energy-saving technology

Advanced insulation and optimized cooling processes significantly lower power consumption, helping laboratories reduce operational costs and environmental impact.

Trusted monitoring and safety features

Integrated alarms and monitoring systems—including temperature, power failure, and door status alerts—ensure immediate notification of any abnormal conditions.

Why utilize PHCbi’s cryogenic freezers?

PHCbi Cryogenic Freezers combine advanced technology, reliability, and energy efficiency to deliver uncompromising protection for critical samples. With homogeneous temperature control, high-performance insulation, comprehensive safety systems, and long-term cost efficiency, they provide a robust foundation for sustained research success.