Cryogenic Processor

300 Below, Inc. has evolved the process of Deep Cryogenic Tempering and has developed a Liquid Nitrogen (LN2) based ultra-low temperature treatment system for reliably testing and improving materials.

It is computer controlled processor. It comes with proven processing cooling curves programmed into the computer. Any other desired cooling curves can be easily programmed into the processor. To run the Model 921 Cryo Processor, one icon is clicked and the program will run automatically.

It is a dry process. Liquid nitrogen is converted to a gas before it enters the chamber so that at no time does liquid nitrogen come in to contact with the parts assuring that the dangers of cracking from too rapid cooling are eliminated.

The model 921 uses conventional electrical cooling to reduce the temperature to -100°F, making it the most economical processor on the market. At -100°F, the liquid nitrogen system cuts in, and the dry vapors of liquid nitrogen are used to cool to the desired cycle.

The electric cooling has another advantage. At the end of the run the processor is set to hold a temperature below freezing and not return to room temperature where condensation and rusting can be a problem.

The standard Model 921 Processor uses 220 volt, single phase 11.2 amp service. For a small fee, any other power requirements can be built into the processor.

We list the capacity of the processor at 1500 lbs. We customarily run at 1800 to 2000 lbs. when we make our runs. We have run loads in excess of that although this practice is not recommended. When the processor is loaded about half full while running a normal load of ferrous tools, it uses about one pound of liquid nitrogen for every pound of material processed. Loads less then this are somewhat less efficient, while loads more the half are significantly more efficient. In general, this model provides excellent ease of operation with economical performance and great reliability.