About Us

CryoR's R&D team

CryoR Harnesses over 20 years of expertise in cooling technologies

CryoR is a research-driven cryogenic engineering company based in Israel, serving clients worldwide with advanced thermal management solutions. We specialize in the design and development of compact, high-reliability cryocoolers for aerospace, defense, medical, industrial machines, and scientific instrumentation.

Founded by Dr. Nir Tzabar, CryoR brings over two decades of expertise in Joule-Thomson (JT) and closed-cycle cryocooler systems. Our technologies are engineered for zero-vibration, low-maintenance, and mission-critical applications, with proven performance in infrared sensing, and advanced research environments.

Unlike mass-market suppliers, CryoR offers a flexible, project-based approach, enabling highly customized thermal solutions tailored to each client’s specific technical and operational requirements. Our systems are currently in use by research institutions, and OEMs.

Core Capabilities

• Turnkey integration support for complex scientific and industrial platforms
• Compact JT cryocoolers (open-cycle and closed-cycle)
• Multi-head configurations powered by a single compressor
• Thermal system modeling, performance simulation, and optimization
• Fast cool-down designs with a focus on reliability and long-term operation

Innovation. Precision. Partnership

Whether you’re developing a medical device, cooling a superconducting machine, or building a next-generation IR imaging system, CryoR delivers the precision engineering and collaborative support needed to bring your vision to life.
We don’t just supply components — we become a part of your development team.

At CryoR, we are committed to pushing the boundaries of cryogenic performance — one tailored system at a time. With clients and collaborators around the globe, we continue to lead through innovation, responsiveness, and precision.

Dr. Nir Tzabar

Founder at CryoR Ltd / Faculty at Ariel University

Dr. Nir Tzabar has been a prominent figure in cryogenic cooling since 2002, starting at Rafael Ltd. He quickly rose to head their cryogenic group, leading research and development of advanced coolers for infrared detectors.

In 2008, he was honored with a research associate position at Rafael, intensifying his focus on cryogenics R&D.

Dr. Tzabar earned his PhD from the Technion, Israel Institute of Technology, with a dissertation on “Mixed-Gas Joule-Thomson Sorption Cryocoolers.”

His postdoctoral tenure at the University of Twente included continuing his PhD research and contributing to the Eco-Swing project, which developed the first superconducting wind turbine, successfully operational in Denmark in 2018.

At Ariel University in Israel, Dr. Tzabar serves as a faculty member in Mechanical Engineering, leads the Energy Track, and heads the Ariel Energy Research Center. He founded CryoR Ltd in 2015 to provide specialized consulting in cryogenic cooling and refrigeration, evolving the firm to handle proof of concept projects and prototyping, including the delivery of the first laboratory cryocooler to a client.

At CryoR, our mission is to develop and design advanced cryogenic cooling systems that not only meet but exceed our customers' needs. We are committed to innovation, precision, and adaptability, ensuring that each cooling solution we provide is tailored to the specific requirements of our clients' research and applications. Our goal is to enable groundbreaking discoveries and advancements by offering reliable, efficient, and customizable cryogenic cooling technologies."