The" TIANHAN" series of ultra-low temperature freezers based on internationally best-known brand components and German cascade refrigeration system. The technology of this freezer ，as is to be expected from the ergonomic design, provides optimum operation and reliable function.

"TIANHAN" series of ultra-low temperature freezers are very popular in China because of their considerate designing and best quality. Our techniques keep the leading position in China and can reach that of in import product.. If you are looking for a high-density biological storage solution for the laboratory, please contact us!

Features of system:
1. The cascade refrigeration system, the most widely spread technique in the international
2. The main components used by well-known brands in whole world, which make the operation safer
3. The refrigerant is fluorine-free and friendly
4. The noise of 55db provides a quite working environment.
5. The unique refrigerating way with half air-cooled, protects the condenser form being damaged even when the condenser is stuffed with dirt
6. The inner material is made of stainless steel
7. The adjustable height of shelf
8. The four independent interior doors avoid dissipation of cold air
9. The round design of interior corners makes the cleaning more convenient
10. Double silica get seals on the door successfully blockade the cold air from flowing out
11. R232 connect(optional),is of great help in data-analyzing
12. The removable dust catcher makes the cleanout easier
13. The refrigerator, designed according to the domestic door height is 1.89m and is easy to be moved and transported
14. 13cm thick-PU-foam greatly strengthens its structure as well as the heat insulation system
15. Both the door and the power supply system can be locked
16. Both light and sound alarms systems are available
17. We provide 1 years warranty time for every machine

BTT(Beijing Tiandijingyi Technology CO., LTD) is a new high-tech enterprise registered in ZhongGuanCun Science and Technology Park. Our company has an excellent designer team who firstly apply the technology of cascade refrigeration system to ultra-low temperature refrigerators in China. Our major is for designing, developing and producing low-temperature Chamber such as -86c freezers, freezing dryers, ultra-low temperature liquid dipper and Chiller.

Our company is the ever-first producer which make the real -86c freezers with the technology of cascade refrigeration system in China! Our products are welcomed not only used in China but also exported to many other countries like UK and Singapore etc. Our expert can design and install customized cryogenic Equipment everywhere in the world.