Kryo 750

An integrated controlled rate freezer for cryopreservation of larger volume samples or samples in larger numbers - Kryo 750

The controlled rate freezer is designed for freezing of samples in bags, vials and straws.

It has a simple 2 button operation with standard PC software to enable password protected multiple protocols. A forced laminar flow cooling system ensures most efficient, even cooling and the machine has Top or Front opening for easy loading. Heated door seals prevent the lid freezing shut at cryogenic temperatures.

By using our PC software, DeltaT, enables password protected multiple protocols, online data-viewing, capture and storing for validation. Batch freezing is possible using our DeltaT software. Large sample numbers can be deposited in different machines with the subsequent freezing profile for all samples being displayed on the same graph.

Protocol stage “trigger on sample”, or chamber temperature, or time and the inner chamber is removable for sterilisation. The 750 has a Comms port - for PC connection and has flexible and fast cooling rates.

It is also available in Medical Device version.


  • Top or Front opening for easy loading
  • Freeze samples in bags, vials and straws
  • Forced laminar flow for efficient and even cooling
  • Trigger on sample, time or temperature
  • Unique 2 button operation
  • Standard PC software enables password protected multiple protocols
  • Heated door seal prevents freezing shut at cryogenic temperatures
  • Inner chamber removable for sterilisation


Chamber volume: 29 litres
Capacity: 20 x 250/500/750/1000 ml blood bags, horizontally/vertically in chamber, or 40 x 50 ml blood bags, horizontally/vertically in chamber
96 x 25ml PALL bags
Vial or ampoule capacity: 1452 x 2 ml
Straw capacity: 1216 x 2 ml
Lower temperature limit: -160 ºC
Cooling rates: -0.1 to -10 ºC/min
Controlled heating rates: 0.1 to 10 ºC/min
System controller: integral
PC Software: includes Planer's DeltaT


The Kryo 750 is used for freezing in, amongst many fields:

  • Cancer research
  • Bone marrow freezing
  • Blood
  • Tissue
  • Pharmaceutical
  • Cord Blood
  • Vaccines

Case Study - Benefits of Controlled Rate Freezing

Case Study - Background to Controlled Rate Freezing

Case Study - Birth from 20 year frozen–thawed pronuclear stage embryo

Case Study - Drs Kattera and Chen: new methods to increase the post-thaw survival

Contact Us

Planer Freezers are offered to the international market. 

Please contact us to get further information.

Kryo 750 Downloads

Planer Limited

110 Windmill Road
TW16 7HD
United Kingdom

+44 1932 755000
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