−150 °C Cryogenic & Controlled-Rate Freezers

−150 °C Cryogenic Freezers and Controlled-Rate Freezers

This category covers two different cryogenic tasks: mechanical Antech MDF freezers for storage down to −150 °C and CryoVita controlled-rate freezers for programmed sample freezing. Select by the stage of the process, then by capacity and container format.

Select equipment and request a quotation

Storage versus controlled freezing

MDF-150C138 and MDF-150C226 are mechanical cascade refrigeration models for storing prepared frozen samples. CryoVita 18, 34, 49, 26H, 90H and 150H follow a programmed temperature profile and require an external liquid nitrogen supply. After a controlled freezing cycle, samples move to an appropriate storage system.

Compare the two equipment types

Criterion	Mechanical MDF freezers	CryoVita controlled-rate freezers
Task	Storage of frozen samples	Programmed freezing before storage
Cooling source	Mechanical cascade system	External liquid nitrogen supply
Selection focus	Storage conditions, capacity and monitoring	Temperature profile, loading and sample holders
Configuration to confirm	Cryobox and rack arrangement, alarms and backup plan	Container format, programme, racks and nitrogen connection

Preparing a quotation request

Provide the protocol, sample format and count, monitoring requirements and room conditions. For CryoVita, include the proposed nitrogen source and connection. Verify exact figures on the selected model page and in its documentation.

Questions before selection and procurement

Is the temperature in the category name enough for selection?

No. Compare the specific model range with the documented storage requirements of each material. Storage duration is defined by the material documentation, not by the refrigerator or freezer name.

How should required capacity be assessed?

Count the actual containers and reserve stock, then check shelf or basket arrangements. Total volume, usable volume and package capacity are different measures.

What should be agreed for temperature monitoring?

Alarm functions, independent measurement, record format and the deviation response procedure. Include temperature mapping and qualification separately where required.

What is needed to compare quotations?

A technical specification and an equivalent equipment list for each option. Specify quantity, installation or use location, compatible accessories and documentation requirements. This supports comparison of the complete cost of the required solution.

Configuration and documentation

Record the exact model, version, standard equipment and optional items in the quotation. Request the manual and specification with the conditions under which performance figures are determined. Agree procurement documentation, availability, delivery, warranty and service work for the specific supply.