MRJTC – Mixed-Refrigerant Closed-cycle Joule-Thomson Cryocooler

MRJTC – Mixed-Refrigerant Closed-cycle Joule-Thomson Cryocooler

Remote compression unit and vibration-free cold head closed cycle JT cryocooler for IR detectors

MRJTC – Mixed-Refrigerant Closed-cycle Joule-Thomson Cryocooler

Operating Range

77 K – 200 K

Key Advantage

Remote compression unit / Miniature and vibration-free cold head / high system availability

Typical Platform

Airborne / Tactical / Surveillance

OVERVIEW & TECHNOLOGY

The MRJTC provides continuous cooling for IR detectors at temperatures between 77 K and 200 K. The absence of moving parts at the cold head makes it vibration-free and highly reliable. The remote compression unit, which is connected to the cold head by long flexible tubes, allows high reliability, convenient integration and maintenance, and the option for redundancy. The MRJTC can be fitted to various Dewars dimensions.

Cooling temperature: 77 – 200 K

The OJTC is suitable for various IR detectors, operating at different wavelengths.

Miniature vibration-free cold head

Our home-made heat exchangers allow miniaturization and compatibility with a variety of Dewar dimensions. The cold head does not include any moving parts.

High reliability and availability

The compression unit can be located far from the cold head, connected by flexible tubes, suitable for fast maintenance without interfering with the camera/seeker, and enabling redundancy for enhanced availability

Environmental conditions

Environmental conditions

PERFORMANCE CHARACTERISTICS

PERFORMANCE CHARACTERISTICS

TECHNICAL SPECIFICATIONS

ParameterSpecification/ValueNotes
Operating Temperature Range 77 K – 200 K Covers a variety of IR detectors
Steady-State Cooling Power < 5W Can be adjusted to a specific need
Steady-State power consumption >20 W/W Depends on cooling temperature and other features
Cool-Down Time > 3 min Depends on the Dewar characteristics
Cold Head Weight 8 to100 g Varies by class
Compressor Weight > 1 kg Depends on cooling temperature and cooling power

TARGET APPLICATIONS

Camera/Seeker miniaturization

Miniature vibration-free cold heads

High availability

The remote compressor can be easily and rapidly replaced in case of failure. A redundant compressor is possible. Ultra-high reliability of the cold head

Multi cold heads

A single compressor can drive multiple cold heads. Such configuration reduces costs and makes system engineering more robust

COMPLIANCE & CERTIFICATIONS

All CryoR coolers are engineered to rigorous defense and aerospace standards

ISO 9001:2015 Certified

Lead Times & Readiness

ConfigurationLead TimeMinimum Order
Prototypes24 weeks after receiving order5 unit
High-Volume Production100 per month, 16 weeks after receiving order50+ units