C-Mag Cryogen-FREE Superconducting Magnet System
Cryomagentics Inc
C-Mag Cryogen-FREE Superconducting Magnet System

Please Contact Cryomagnetics at sales@cryomagnetics.com or your local Sales Representative for a price quotation.

C-Mag Cryogen-FREE Superconducting Magnet System

Cryomagnetics’ C-Mag Cryogen-FREE magnet systems are versatile property measurement systems that provide the researcher with exceptional range, versatility, accuracy, and automation in materials characterization.

Based on the latest cryocooler refrigeration technology, the systems are very easy to set up, operate and maintain.

Cryomagnetics’ C-Mag Cryogen-FREE magnet systems are versatile property measurement systems that provide the researcher with exceptional range, versatility, accuracy, and automation in materials characterization.

Based on the latest cryocooler refrigeration technology, the systems are very easy to set up, operate and maintain.

Accurate control of sample temperature from <1.6K to 325K is provided with simultaneous control of applied magnetic field.

  • 4.2K Cryocooler Based
A choice of Pulse Tube or Gifford McMahon configurations eliminate liquid cryogens for the superconducting magnet and are used to condense a small volume of LHe for sample cooling from a closed volume of gas.  This allows sample-in-vapor operation from <1.6K-325K in continuous flow operation.

  • Turn-Key System
Superconducting magnet, 4.2K cryocooler system, superconducting magnet power supply, temperature controller, thermometry, and available Cryomagnetics’ exclusive NAVIGATOR™ system control software.

  • Ease of Use
Simple sample exchange process allows user to change samples without warming magnet or cryocooler.

  • Ultra-Low Vibration Options
Mechanically decoupled platform available, featuring pneumatically dampened supports, ideal for AFM or other vibration sensitive measurements.

  • Flexible Configurations
Up to 10T split pair or 14T solenoid standard configurations.

  • 49 mm Sample Space
Gold-plated, rotatable sample positioner.

  • Gas Handling Systems
Closed loop operation of gaseous helium only for temperature control

  • Upgrade paths to He3 and dilution refrigerator inserts

SolenoidsSplit Pair2-Axis3-Axis
Vari-9 (9T)Vari-7S (7T)Vari-7/2Vari-1/1/1
Vari-12 (12T)Vari-8/2Vari-5/1/1
Vari-14 (14T)Vari-8/1Vari-7/1/1

C-Mag Vari-9 Research System

Cryomagnetics’ C-Mag Vari-9 variable temperature magnetic properties research system provides the scientist with exceptional range, versatility, and accuracy in materials characterization. Based on the latest pulse tube cryocooler refrigeration technology, the system is very easy to set up, operate and maintain.

The integrated variable temperature insert controls sample temperature from < 1.6K to 300K. Simultaneous control of applied magnetic field is up to ±9.0 Tesla – all without the need for any liquid cryogens and using a single cryocooler.

  • Painted aluminum cryostat compatible with the 9T solenoid superconducting magnet.

  • Cryomech model PT-410 ultra-low vibration pulse tube refrigerator with water-cooled compressor for cooling of magnet and user samples.

  • One PT-100 temperature sensor installed on system’s thermal radiation shield and one ruthenium-oxide temperature sensor installed on the superconducting magnet to monitor system refrigeration status.

  • A safety pressure relief valve is installed on the system vacuum chamber.
Integral to the cryostat is a pot containing liquid helium recondensed from the closed loop VTI gas system.

  • A top-loading VTI is integrated into the cryostat/cryocooler assembly for user access to the high field region of the magnet.

  • This is a closed-loop system. Helium gas from the VTI is captured and later recondensed.

  • The VTI is a “sample-in-vapor” type and allows control of sample temperature from <1.6K – 325K in continuous mode.

  • The sample tube has a nominal 2-inch diameter, giving the user a ~49mm diameter inside working space.

  • A sliding seal is used for sample changes.

  • A rotatable, gold-plated sample mount with calibrated (1.4K-325K) Cernox temperature sensor and bifilar wound heater is provided.
(2) 19-pin connectors are installed on the sample mount.

  • The vaporizer of the variable temperature insert is also be fitted with a calibrated Cernox temperature sensor and heater.

  • The system will be equipped with a pumping station comprised of an appropriate vacuum pump to capture the VTI’s off-gas, all necessary valves and vacuum-plumbing.