4K Closed Cycle Refrigerator Systems

The Janis SHI-4 series cryostats are considered the most versatile systems available for laboratory sample cooling. These cryostats are fitted with interchangeable optics, and have provisions for a wide range of electrical connectors. A robust mounting flange and as tapped holes on the vacuum shroud ensures easy mounting in any orientation.

Standard Configuration

The Janis SHI-4 series cryostats are specifically designed for measurements to 325 K, and optional configurations enable operation to 500 K or 800 K (with special thermometry).

These systems are optimized for experiments requiring optical access to the sample, and include the following components:

  • Four o-ring sealed quartz windows
  • Optical vacuum shroud and radiation shield
  • 10-pin electrical feedthrough, with three spare electrical access ports
  • Gold-plated OFHC copper sample holder
  • Silicon diode thermometer and control heater
  • Safety pressure relief valve and evacuation valve
  • Easily removable window block with o-ring seal situated just above the windows (SHI-4-2 and SHI-4-5 systems only)

Standard Optical (SHI-4-x) Configuration Mechanical Drawing (Models SHI-4, SHI-4-15, SHI-4-5)

Standard Optical (SHI-4-x) Configuration Mechanical Drawing (Models SHI-4, SHI-4-15, SHI-4-5)

Available options:

  • Rotatable vacuum shroud
  • Custom designed vacuum shroud
  • Compact vacuum shroud (for use with electromagnets)
  • Additional electrical feedthroughs (SMA, BNC, multipin, and others)
  • Rotation and positioning stages
  • Fifth window port
  • Matrix isolation configuration
  • Specially modified window block with larger window as an option (SHI-4-x)
  • Radiation shield windows
  • IR and other window materials
  • 500 K & 800 K high temperature systems available on most models (800 K with special thermometry)
  • Large sample volume configurations
  • Non-optical configurations

Model SHI-4-1 Standard Optical Cryocooler Mechanical Drawing

Model SHI-4-1 Standard Optical Cryocooler Mechanical Drawing

Low Vibration Interface (SHI-4XG-x) Configuration Mechanical Drawing shows dimensions for the 0.5 W model. Other models are also available.

Low Vibration Interface (SHI-4XG-x) Configuration Mechanical Drawing shows dimensions for the 0.5 W model. Other models are also available.

Standard models include:
("x" indicates the cooling power of the refrigerator)

  • SHI-4S-x (Sub-compact)
  • SHI-4-x (Optical)
  • SHI-4T-x (Non-optical)
  • CCR4-MMP (Cryogen-free probe station)
  • SHI-4XG-x (Low vibration interface)

SHI-4-2 0.2 Watt 4 K Optical Cryostat

SHI-4-2 0.2 Watt 4 K Optical Cryocooler

SHI-4-5 0.5 Watt 4 K Optical Cryostat

SHI-4-5 0.5 Watt 4 K Optical Cryocooler

SHI-4 1 Watt Optical 4 K Cryostat

SHI-4 1 Watt Optical 4 K Cryocooler

SHI-4-15 1.5 Watt Optical 4 K Cryostat

SHI-4-15 1.5 Watt Optical 4 K Cryocooler

SHI-4T-1 Non-Optical 4 K Cryostat with Optional Mounting Stand

SHI-4T-1 Non-Optical 4 K Cryocooler with Optional Mounting Stand

SHI-4T with Optional 800 K High Temperature Stage

SHI-4T with Optional 800 K High Temperature Stage

SHI-4ST-1 Sub-compact, Non-optical 4 K Cryostat

SHI-4ST-1 Sub-compact, Non-optical 4 K Cryocooler

SHI-4XG-5 Low Vibration Interface 4 K Cryostat

SHI-4XG-5 Low Vibration Interface 4 K Cryocooler

SHI-4T-4 Non-optical 4 K Cryostat

SHI-4T-4 Non-optical 4 K Cryocooler

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