The Best Deep Cryogenic Processing Equipment

Controlled Thermal Processing (CTP) sells top-of-the-line cryogenic processing equipment to industry leaders around the world. Our rugged, vacuum-insulated equipment is designed to be so efficient that your lower materials operating cost more than makes up for the cost of premium equipment in the shortest time possible.

 How Our Machines Work

The goal of any cryogenic processing is to optimize the crystalline structure of your materials by getting them to cryogenic (-244°F or below) temperatures. Most processors accomplish this with a spray bar, which can lead to thermal shock, damaging your payload.

Our cryogenic treatment equipment uses an internal heat exchanger in a vacuum insulated Dewar to give you even, controlled results for consistent output. Three different sizes give you the ability to choose the right tool for the right job, each with our leading-edge research built in.


  • Long-lived, permanent vacuum insulation is the best for your bottom line. There’s no compressor pump to fail, material to degrade, or internal structural support to transfer heat. Reliability and efficiency are built in. Our first vacuum insulated machine is still in service, several machines are still going after decades of use, and if the seal ever does break, it is easier and cheaper to repair than any insulation substrate.
  • The most efficient machines available. Due to our innovative design and the even cooling afforded by our round chamber, our cryogenic tempering equipment has the lowest use of liquid nitrogen of any available machine on the market.
  • The patented heat exchanger technology minimizes thermal stress and shock. Our heat exchanger uses a totally dry process; no spray bars to spray liquid nitrogen on the payload.

  • Heating element allows tempering right in the machine. You can precisely control the temperature range from -315°F to +320°F. This translates to lower costs, more control over the cycle, and the ability to temper parts in the machine. This means no additional tempering oven is necessary, providing you considerable savings and flexibility.

  • Microprocessor based industrial temperature control stores multiple programs.  This unit is meant for industrial settings.

  • Paperless electronic chart recorder makes a permanent record of every run. It tracks the temperature that the control is asking for, the actual temperature inside the processor and the temperature of the part being processed.  Results can be printed for certifications.

  • We have cryogenic treatment equipment in service worldwide. When we say we are a global authority on cryogenic treatment equipment and processing, we mean it. Please note: export versions are slightly higher due to modifications needed to adapt to different electrical currents, and to cover other costs associated with export.

  • Our machines are backed by a one-year warranty. For a period of one year after delivery, the manufacturer will supply replacement parts and repair instructions to remedy any defects in workmanship or materials, at no cost to the customer.

  • We have sold machines all over the world.

Cryogenic Processing Chamber

Features of Our Standard Machines

Vacuum Insulation vs. Foam Insulation

View of the interior of a CP-200v.  Note the duct containing the heating element.  This allows tempering of the load in the machine.

Paperless Chart Recorder on our Cryogenic Processing Chamber

A paperless chart recorder creates a permanent record of the temperature called for by the industrial grade temperature control, the temperature in the machine and the temperature of the load.

The results are available in chart format and spreadsheet format.

Our CP-200vi vacuum insulated cryoprocessor. Larger sizes are available

Cp-200vi Cryogenic Treatement Heat Exchanger

CP-200vi showing heat exchanger in the lid.

Vacuum insulation reduces the amount of liquid nitrogen needed considerably.

Cryogenic Treatment Machine Features

Read an article on Vacuum Insulation from Cold Facts which is the official magazine of the Cryogenic Society of America


Read an article in Heat Treating Progress on vacuum insulation.

*Dead Weight is the weight of the interior of the machine that needs to be brought down to liquid nitrogen temperatures during the process and is therefore related to nitrogen consumption.
**Liquid Nitrogen Use is the amount of LN2 needed to keep the machine at -300F and overcome heat gain from the outside.
***Zero Load Nitrogen Usage is the amount of liquid nitrogen to run a cycle for an empty machine (no payload) on a cycle which consists of an eight hour ramp down to -300F and a twenty hour hold at that temperature.  To calculate nitrogen usage for the machine being run with a payload, add 0.25 liters of liquid nitrogen per pound of steel payload to this figure.
Note 1, Weight Capacity
We find that our cryogenic tempering machines are able to process virtually any load that can be placed in them, assuming there is some space in the machine for air to circulate around the load. The CP-1200vi is designed for and can easily accommodate loads of 3000 lbs. We routinely put loads of 2500 lbs. in CP-500vi’s
Printed Run Chart from a Cryoenic Processing Chamber

We work with companies that are experts in their fields.  Check out Cryofab, makers of excellent vacuum insulated equipment.