FAQ

OptiDry 250 is designed for low-vibration optical experiments and configurable cryogenic setups down to 3 K.
‍TowerDry 1K provides a large vertical experimental volume and continuous operation down to 1.2 K.
‍SpectroDry is a compact, cost-effective platform for spectroscopy, transport, and magnetotransport experiments where ultra-low vibration is not the main requirement.
Our engineers can help select the platform based on temperature, cooling power, optical access, sample space, vibration, wiring, and magnetic-field requirements.

Every cryostat is tested before shipment under defined operating conditions. Comparable performance can be achieved in your laboratory when the installation requirements, thermal load, vacuum conditions, utilities, vibration isolation, and experimental wiring match the agreed configuration.
The guaranteed values and their measurement conditions are specified in the technical proposal and acceptance documentation for your system.

A standard OptiDry 250 can typically be delivered in less than six months from order confirmation. Lead times may be longer for systems including superconducting magnets, continuous 1 K operation, custom optical access, nanopositioning stages, or special wiring.
A project-specific delivery schedule is confirmed once the technical configuration has been approved.

For every system, we commit to delivering a specified cooling power at a defined operating temperature. This guaranteed performance is established from the tender requirements, the customer’s specifications, or our engineering assessment of the final configuration.
The agreed values, measurement conditions, and acceptance criteria are documented in the commercial proposal and validated during factory and on-site acceptance tests. Each system is also supplied with contractual warranty terms, together with installation, commissioning, and technical support.

Installation requirements depend on the cryostat and compressor configuration. A project-specific site-preparation document is supplied before installation.
Typical requirements include:
- Dedicated electrical power for the compressor
- Cooling water with the specified flow, temperature, and pressure
- Adequate space for the cryostat, compressor, controller, and rotary valve
- Suitable routing for helium lines and electrical cables
- A dry vacuum pumping system
- A helium leak detector and helium cylinder for commissioning
- Appropriate laboratory access and wall openings where required

Systems equipped with the continuous 1 K option also require space for the gas-handling system and its liquid-nitrogen trap.

Yes. My Cryo Firm platforms are designed to support both standard and custom experimental configurations.
Available customizations include:
- Optical access and custom window materials
- DC, RF, HV, and optical-fiber feedthroughs
- Solenoid, split-pair, large-bore, and vector magnets
- Cryogenic nanopositioning stages
- Continuous 1 K operation
- Custom sample holders and experimental volumes
- Low-working-distance optical configurations
- Temperature sensors, heaters, and regulation interfaces

Our engineers review the complete experimental environment before proposing a configuration.

Standard OptiDry, TowerDry, and SpectroDry systems use closed-cycle cryocoolers and do not require regular liquid-helium refilling. The helium used by the cryocooler circulates within a sealed system.
The main utilities are electrical power and, depending on the compressor, cooling water. The continuous 1 K option uses an additional closed-loop helium-4 circulation system and requires a liquid-nitrogen trap as part of its gas-handling system.

Yes. Installing the compressor in a separate technical room is often recommended to reduce acoustic noise and heat in the laboratory.
For standard OptiDry configurations, the helium lines and associated electrical cables can typically extend up to 20 m. The final distance, cable routing, wall openings, and line-storage requirements are confirmed in the project-specific installation guide.
The rotary valve should remain near the cryostat and be mounted on a mechanically separate support to reduce vibration transmission.

A vacuum pumping system is required for initial pump-down but it does not need to remain permanently connected to the cryostat.
For an OptiDry 250, the recommended minimum pumping capacity is 3 m³/h for the dry backing pump and 60 L/s for the turbopump, connected through a KF25 interface. Once the cryostat is cold and operating, cryopumping maintains the required vacuum, allowing the pumping system to be disconnected and used for other laboratory equipment.
If no suitable equipment is available in the laboratory, My Cryo Firm can provide a complete pumping station as an option. A helium leak detector and a helium cylinder are also required during installation and commissioning to verify the integrity of the system before cooldown.

Cooldown time depends on the platform, magnet, wiring, thermal load, and selected options.
Typical values are:
OptiDry 250: approximately 6.5 hours without a magnet
TowerDry 1K: less than 17 hours to reach 1,2 K, depending on the configuration
‍SpectroDry: less than 2 hours 30 minutes
‍OptiDry 250 warm-up: less than 3 hours to reach room temperature
Final values are confirmed for the selected configuration.

Yes. My Cryo Firm can integrate solenoid magnets up to 9 T, split-pair magnets up to 7 T, and multi-axis vector-magnet configurations, depending on the cryostat, bore size, optical access, and sample-space requirements.
PCN cryogenic piezo motors can also be integrated for single-axis or XYZ positioning. They are designed for operation down to 1 K and in magnetic-field environments up to 7 T.

Depending on the configuration, the compressor and temperature-control system can be monitored or controlled through RS232, USB, SCPI, and the MyCryoDisplay or OptiDrive software interfaces.
The available communication interfaces are confirmed for each system during project definition.

My Cryo Firm engineers perform the system installation, leak testing, commissioning, and initial performance checks. The customer is responsible for preparing the required electrical power, cooling water, pumping equipment, leak detector, helium cylinder, and installation space according to the site-preparation document.
Operational guidance is provided during commissioning.