Cryogenic Processing Machines

Applied Cryogenics, Inc builds the most efficient cryoprocessing machines available on the market. These rugged, vacuum insulated machines process materials at the lowest total cost of any machine. Being vacuum insulated, their life span is easily five times that of the competition. Although their initial cost is slightly higher than competitive machines, they exhibit the lowest overall cost for any machine on the market by a wide margin.

The CP-200vi, theCP-500vi, and the CP-1200vi cryoprocessors are capable of automatically cycling payloads between the temperature limits of -300 and +320. Payload temperature is reduced by use

of an internal heat exchanger to eliminate thermal shock that is possible and probable with spray bar machines. Integral heating elements make it possible to temper items in the machine as part of the automatic cycle. A microprocessor based industrial grade control is provided for programming, storage, and execution of complex time/temperature profiles. The system is capable of unattended running for periods of several days. A paperless chart recorder provides a permanent record of the thermal history of each run.

Pictured to the left are two of the three standard sized machines, the CP-200vi and the CP-500vi. The CP-200vi is a wonderful machine for small tooling. The CP-500vi is sized for medium production and is very good for engine shops. We have loaded six NASCAR V8 engine blocks in our CP-500vi's with room to spare for other components. Below are pictured two CP-1200's. The CP-1200vi is great for production situations. Specifications of each machine are listed below.

In the view below and to the left you see the tubular heat exchanger which is housed on the lid. Our machines cool the load by pulling air over the heat exchanger which is filled with liquid nitrogen. The air is drawn over the heat exchanger and blown down a duct (see the interior shot below) to the bottom of the machine. This cools the payload in the machine by molecular kinetics. This is a very gentle way of cooling which does not allow liquid nitrogen to hit the payload and cause cracking. Our competitors' machines use spray bars that spray liquid nitrogen into the machine to cool the parts. They claim that the nitrogen evaporates before it hits the parts. We have direct evidence that this is not true.

The duct is also the location of the heating elements in the machine. A note about having heating elements in the machine. Our competition says that that this is not a good idea. We've got a lot more experience in designing machines and know it is a good idea. Vacuum insulation is so efficient that it would take days for our machines to come back up to room temperature without the heating elements when they have a heavy load. This efficiency translates to lower costs and more control over the cycle. And you can temper the parts in the machine too if you wish. For most companies this means no additional tempering oven is necessary resulting in considerable savings.

Specifications
Vacuum Insulation
Paperless Chart Recorder
Machine Advantages
FAQS

**Standard Cryogenic Processors by Applied Cryogenics, Inc.**
	CP-200vi	CP-500vi	CP-1200vi
Inside Diameter	22 inches	31 inches	40 inches
Chamber Depth	33 inches	46 inches	63 inches
Chamber Volume	7 cubic feet	17 cubic feet	42 cubic feet
Electrical	220v 1 phase	220v 1 phase	220v 1 phase
Amps	20	20	50
Program Capacity	8	8	8
Load Capacity	See Note 1	See Note 1	See Note 1
Machine "dead weight"*	120 Pounds	200 pounds	400 pounds
Liquid Nitrogen use at -300^oF	5 Liters/hour	7 Liters/hour	11 Liters/hour
Zero Load Nitrogen use**	150 Liters	218 Liters	364 Liters
Max Tempering Temperature	+320^oF	+320^oF	+320^oF
Microprocessor Control	Yes	Yes	Yes
Chart Recorder	Yes	Yes	Yes
Price as of 02/18/09***	$36,000	$46,500	$62,000

*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.
** Nitrogen usage to run a cycle consisting of 8 hours ramp down to -300⁰F, hold for 20 hours at -300⁰F for an empty machine (no payload). 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.
***Prices and specifications are subject to change without notice. Prices are in US dollars for machines destined for use in North America. Export versions are slightly higher due to modifications needed to adapt to different electrical currents, and to cover other costs associated with export.
Note 1: Weight Capacity. We find that the 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 in our brake processing plants.

Warranty
For a period of one year after delivery, Applied Cryogenics will supply replacement parts and repair instructions to remedy any defects in workmanship or materials, at no cost to the customer.

One other thing comes with our machine. Our machines come with the combined experience of both Controlled Thermal Processing and Applied Cryogenics. There are no license or franchise fees. You see, your success is our best sales aid.

Vacuum Insulation is the most efficient insulation for cold temperatures. Liquid nitrogen is shipped in vacuum insulated dewars. Why do you want a vacuum insulated cryogenic processor? You want one because it is the most efficient, long lasting type of machine built.

Several things to remember:

1. Our machine dewars are much like a Thermos^® bottle, only made of metal, not glass. The parts being treated go into the space were the coffee would go in the Thermos^®. The vacuum is between the outside wall and the inside wall.

2. The vacuum is permanent. We have machines that are twenty ye Heat Penetration ars old in the field and the vacuum is still good. There is no vacuum pump on the machine as it is not necessary.

As you can see by the chart on the right, foam insulation allows about 2500 times more heat through it than vacuum insulation. This is one reason why our machines are so much more efficient than foam insulated machines

Our dewars are built so that the inside hangs in the outside layer. That way, the only heat bridge is where the outside and inside touch at the top of the vessel. No structural members convey heat into the dewer. The inner wall of the dewar is wrapped (in the vacuum chamber) with a high tech super insulation which reflects any heat that is trying to traverse the vacuum by radiation. A by-product of the circular shape is superior air circulation within the machine.

Our competitors claim that vacuum insulation is not good because you will lose the vacuum making the machine is a worthless piece of junk. This is just plain false. Should the dewar be punctured, it can be repaired. Not so with some of the other insulations schemes. Once they settle, absorb water, or just plain turn to powder they are pretty much done. Another claim is that out gassing from the metal will ruin the vacuum. This is also bunk, as our dewars are put through a cycle where they are heated while hooked up to a vacuum pump which eliminates the out gassing problem. We've got dewars out there that continue to work just fine after 20 years of use.

For more information on vacuum insulation read the article from
the Cryogenic Society of America's Cold Facts Magazine.

Also read Dr. Jeffrey Levines article on vacuum insulation from Heat Treating Progress, the official magazine on heat treating published by ASM International.

Paperless Chart Recorder

The chart recorder is a 3 channel paperless recorder that displays data on a 5.7" STN color LCD. There are no pens to change, expensive chart paper to buy or run out of and no paper jams. The chart recorder features a wide variety of display modes to allow users to view data as trends (horizontally and vertically), bar graphs, analog meters, digital/numeric output, totalized output, event summaries and more. Switch between the chart recorder's display modes quickly and easily with the 8-key front panel. The adjustable-time screen-saver function extends the life of the display and reduces power consumption.

The chart recorder can literally record years of data with a Compact Flash card. Free PC support software allows you to view historical data stored on the compact flash card.

Ethernet communications are standard with the recorder and allow for FTP transfer of files stored on the chart recorder's Compact Flash card and for live monitoring of all inputs via HTTP. The chart recorder includes USB configuration cable and CD-ROM with PC support software and instruction manuals.

Features of the Chart Recorder

Long Term Data Storage: Data is saved to standard Compact Flash card.
Saved Data playback: Saved data in Memory card can be easily called out and played back on display
Screen saver: Period of non-operation exceeds the setting value of parameter, recorder turns off the backlight of LCD
PC support software (Data Viewer/Parameter Loader) and Instruction Manuals: CD-ROM and loader cable included with recorder

We set the chart recorder up so that one channel reads and records the temperature in the interior of the machine, one reads and records what the temperature control is calling for (the Setpoint), and the third reads the temperature at a thermocouple that can be attached to a part being processed.

	Sophisticated vacuum insulated cryoprocessors refined and perfected during the 25+ years we've been offering our equipment for sale.
	Reliability and efficiency are built in. Our first vacuum insulated machine is still in service.
	The most efficient machine available.
	Lowest use of liquid nitrogen of any available machine
	Patented heat exchanger technology minimizes thermal stress and shock.
	Totally dry process using a patented heat exchanger, no spray bars to spray liquid nitrogen on the payload.
	Heating element allows tempering right in the machine.
	Machines in service world wide.
	No compressor to fail.
	Industrial grade microprocessor controls, not unreliable home grade computer control.
	Cylindrical design with ducted forced air flow assures better air flow, more even processing & eliminates hot corners.
	No franchise fees.
	Over 25 years experience in the cryogenic processing field.
	Controlled Thermal Processing's competitors have told us they wish they had our machines!!!
	Three standard sizes available.
	Custom machines available.
	Long life. Our first vacuum insulated machine is still in use.
	Lease terms available.
	Reasonably priced.

Content 5

1.	Won't the vacuum leak? One of your competitors states that once the vacuum is lost you have a worthless piece of equipment.
	Problems maintaining the vacuum are rare. We have vacuum insulated machines that are over twenty years old that still exhibit their excellent insulation. Yes, you can damage the vacuum vessel, but it can also be easily fixed. Remember, liquid nitrogen is shipped in vacuum insulated dewars that are thrown around on trucks and handled roughly. It is distributed in vacuum insulated lines in many plants without undue problems.
2.	Ok, but they also say that out gassing will destroy the vacuum.
	Out gassing occurs for some time after the initial vacuum is established. Our dewars go through a program where they are held under a vacuum by a vacuum pump for a long time with fluctuations in the temperature. This takes care of the out gassing By the way, this is a standard procedure for vacuum dewars that our competitors seem to ignore. Again, we have vacuum insulated machines that have run for 20 years without problems.
3.	Can your machine control the temperature to .01^oF?
	No, and neither can any other machine out there. The people who claim such accuracy are using a thermocouple just like everyone else. Yes, the temperature readout might indicate the temperature down to that degree, but that does not mean that it is the true temperature. It would be very hard to calibrate a thermocouple down to that accuracy, and it would be meaningless to the process.
4.	Won't the vacuum pump on the machine cause a lot of maintenance headaches?
	THE MACHINE DOES NOT HAVE OR NEED A VACUUM PUMP. The vacuum is sealed in the walls of the dewar, and does not need to be pumped down every time the machine is run. The vacuum has been known to last for over 20 years, which is longer than the projected life of any of our competitors' machines.
5.	Is releasing nitrogen to the air polluting the air?
	The atmosphere is about 79% nitrogen to start with. Liquid Nitrogen is made by cooling atmospheric air and liquefying it. So the nitrogen that you are releasing into the atmosphere is just going back from where it came. Of course, it is best to assure that the room a machine is in does have some ventilation to assure that the nitrogen does not displace the oxygen in the room. Our vacuum insulation keeps nitrogen usage to a minimum. One of our competitors was using so much LN2 because of the lousy insulation in their machine that the workers could not keep cigarettes lit in the room.
6.	Won't cryogenic processing make my part brittle?
	No. We do a lot of springs, especially valve springs. They do not become brittle. Actually, we have been able to make many metals less brittle using cryogenic processing.
7.	Wouldn't a rectangular machine be easier to load and therefore more efficient?
	No. You need air circulation around the objects that you put into the machine. This is easier to achieve in a round machine because the curvature in the machine virtually assures there will be airspace between the parts.
8	One of your competitors says circular tank processors have good through the wall thermal efficiency however... (air) circulation is limited.
	Where do these people get this stuff? We fail to see how a square machines have good circulation. Intake and exhaust manifolds on engines are not square for a reason. The reason is that there is very limited air circulation in the corners. Combine this with the fact that there is more heat going into the corners because there is more surface area there and you have a real problem. Our machines have a duct which directs air to the bottom of the machine while the fan pulls air up from the top. This provides extremely good air circulation.