Closed-Cycle Cryostat System | Cryomagtech
Cryomagtech Closed-Cycle Cryostat System offers 1.6–325 K control, helium-free cooling, high stability, and modular design for magnetic and optical research.
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The Closed-Cycle Cryostat System developed by Cryomagtech provides a precise, efficient, and eco-friendly low-temperature environment for scientific research in magnetism, optics, and electrical transport measurements.
The system uses a helium-based Gifford–McMahon (GM) closed-cycle refrigerator as its core cooling technology — eliminating the need for liquid helium and enabling long-term continuous operation.
It offers temperature control from 1.6 K to 325 K (typical models 4 K–325 K) with excellent temperature stability and flexible integration options.
This system is widely used in material science, condensed matter physics, quantum device testing, and optical cryogenic experiments.
2. Key Features
- Helium-free operation – closed-cycle cooling requires no liquid helium consumption.
- Wide temperature range: 1.6 K – 325 K (optional 4 K / 10 K / 77 K configurations).
- Vacuum or controlled atmosphere sample environment for diverse experiments.
- High temperature stability: typically better than ±0.1 K.
- Optical window options: multiple materials and geometries available.
- Customizable sample holders: electrical, optical, and probe configurations.
- Compact, modular, and cost-effective design for easy integration with external systems.
- Optional automation and data control software for real-time monitoring.
3. Technical Specifications
| Parameter | Specification Range / Typical Value |
|---|---|
| Temperature Range | 1.6 K – 325 K |
| Sample Environment | Vacuum or controlled gas atmosphere |
| Cold Head Model | RDK-305D / RDK-408D2 (GM-type) |
| Compressor Model | CAN-31D / F50H (air or water cooling) |
| 1st Stage Cooling Power | 15 W @ 40 K (typical) |
| 2nd Stage Cooling Power | 0.4 – 1.0 W @ 4.2 K |
| Cooling Time (300 K → 4.2 K) | 60–150 min depending on model |
| Temperature Stability | ±0.1 K or better |
| Sample Holder Size | 20×30 mm to 60×50 mm (customizable) |
| Sample Base Terminals | Up to 8 terminals |
| Vacuum Level | < 1 Pa |
| Power Supply | 220V single-phase / 380V three-phase, 50 Hz |
| Power Consumption | 1.2 – 7.2 kW (model dependent) |
| Ambient Temperature | 4 – 38°C |
| Compressor Dimensions | 610×390×450 mm to 591×450×588 mm |
| Weight (Compressor / Cold Head) | 75–120 kg / 7–18 kg |
4. Testable Samples & Applications
- Semiconductor and superconducting thin films
- Magnetic materials and spintronic devices
- Quantum dots, nanowires, and low-dimensional systems
- Optical emission, reflection, and transmission measurements
- Magneto-optical Kerr effect and magnetoresistance experiments
5. System Configuration
- GM-type Cryocooler Unit (Cold Head)
- Helium Compressor with flexible lines
- High-vacuum sample chamber
- Temperature controller and sensors (silicon diode or Cernox)
- Sample stage with multiple wiring terminals
- Optional optical windows and adapters
6. Optional Accessories
| Accessory Type | Description / Application |
|---|---|
| Optical Sample Holder | For optical reflection / transmission experiments |
| Electrical Sample Holder | For transport and Hall effect measurements |
| Probe Sample Holder | For multi-contact electrical tests |
| Pluggable Optical Holder | Quick swap for photonic samples |
| Pluggable Electrical Holder | Modular multi-pin interface |
| Custom Optical Windows | Quartz, sapphire, ZnSe, etc. |
7. Software Functions
- Real-time temperature monitoring and logging
- PID temperature control with customizable profiles
- Communication via RS-232 or Ethernet
- Data acquisition and plotting
- Integration with Cryomagtech’s magnet and probe station control systems
8. Why Choose Cryomagtech
- Over 15 years of cryogenic system experience
- Independent R&D team specialized in low-temperature instruments
- Proven compatibility with magnetic, optical, and electrical measurement platforms
- No cryogen consumption → low operation cost and minimal maintenance
- Strong technical support and flexible customization for research applications
9. Contact & Inquiry
Cryomagtech – Precision Magnetic & Cryogenic Instrumentation
🌐 Website: www.cryomagtech.com
📧 Email: edaystore@outlook.com