The original A-3 and B-9 J-System® Blowers!

What is the J-System?

The J-System provides a precise and even air movement within a grain mass of any storage facility regardless of its size or shape. The J-System blower’s design, coordinated with the controlled release of hydrogen phosphide from Phostoxin®, aids in establishing a lethal concentration of the fumigant throughout the grain mass in quality, tightly sealed storages.

How does the J-System work?

Using the patented J-System blower, air is drawn from the headspace and pushed into the grain mass through your aeration system, establishing a uniform hydrogen phosphide concentration. The dispersion of the fumigant gas concentration continues until all the fumigant has been liberated. Uniform gas concentrations in all areas of the grain mass assure high insect mortality.

The J-System is economical to install externally or internally due to our blower’s explosion resistant classification. Component parts can be custom designed and engineered for your storage facility, including ones without an existing aeration system. It is currently used on all types of grain storage facilities including corrugated steel tanks, steel welded or bolted tanks, concrete silos, flat houses, bunker storages, barges and ship holds.

Advantages of the J-System® B-9 Blower 

Learn about the J-System advantage with our Spark Resistant, Cast Aluminum, Explosion Proof Motor!

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J-System® Low Air Flow Fumigation Method

J System Blower Environment Grain Bin


Uneven Distribution Bin A Bin B

These bins, A & B, represent how a bin with nothing to help equalize the gas concentration may appear in 24 to 72 hours.
Uneven distribution is apparent even if the bin is top and bottom treated as in B.


This represents how a bin with the J-System® will appear in relation to gas concentration in only 12 to 24 hours.