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The PneuTech  "Dry-Cool"  Air-To-Air Cooler

The PneuTech “Dry-Cool” air-to-air cooler (US Patent No. 5,580,193) was developed and designed for pneumatic dry bulk tank trailers in the transport of heat sensitive products such as sugar, plastic pellets and resins, or the like.  In the pneumatic unloading process, compressed air is the conveying medium.  The compression of air heats the air, which in turn heats the product. Increased temperature is directly related to increased pressure.  The higher the pressure, the greater the temperature - temperatures up to 350 deg. Fahrenheit in a typical operation.

How Does Hot Air Contaminate Dry Bulk Shipments?

As the pressure of the pneumatically conveying air rises, the product is heated causing plastic pellets to melt and sugar to caramelize.  The composition of the pellets sticks together or breaks down into “angel hair”, rendering them useless. Plastics, sugar and other heat sensitive products melt and coat the tank hoppers, outlets and the discharge line, requiring lengthy and expensive clean up procedures. 

How Does the Cooler Eliminate Heat and Contamination?

Our solution: The PneuTech system cools discharge air to ambient temperature before the air enters the tank. The PneuTech cooler's heat exchanger is rated at 1100 ACFM and is equipped with two electric fans.  It is constructed of aluminum and the fans are powered by the tractor’s electrical system. With the cooler installed in the air supply line between the blower and the hopper tank, the conveying air is routed through the heat exchanger and cooled by the fans.  An automatic pressure sensor switch controls the fans, eliminating possible operator failure to activate the fans.


Pictured above is a PneuTech Cooler installed on a J&L Tank.


Summary of Features

The advantages of the PneuTech Cooler system are:

It provides cooled air to the dry bulk material.
- It is automatic - no special procedure is required.
- It is practically maintenance free.
- It requires no external water, air, or electric source.
- It is compact, light, inexpensive, and does not affect the size of the trailer.


Ordering a Cooler

The Pneu-Tech Cooler is available as a universal kit to be installed to any pneumatic dry bulk tank - regardless of manufacturer.  This kit includes the heat exchanger, electric fans, insulating bushings, fan switch, and thermometers.  

Please contact PneuTech directly for information on options, installation and pricing at (800) 211-7085. 

Tank trailers are our specialty!    

PneuTech is the premier industry provider of expertise in Pneumatic Dry Bulk Trailers, Stainless Trailers, and related services.

If what you are looking for is not listed here,

2305 Franklin Drive
Fort Worth, TX 76106
Toll-Free 1-800-211-7085
Fax 817-625-4033

Please call any time, and ask for Pam Eckroat

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