Filter Spacing

Not all dust collectors with the same air to cloth ratio clean as well. This picture shows the bag spacing of the MAC (supposed) equivalent of the Donaldson RF. Where the RF has 2-3/4" between bag surfaces, the MAC and Pneumafil units have as little as 5/8".  Their snap ring bags and cages are not held down or grounded as an RF cage is.

Do you think there is a chance that 10 ft. cages will bang together at the bottom as they swing and sway due to the air motion caused by a cyclonic inlet? If the bags do not bang together hard enough to pinch a hole through the felt, but instead touch, it is easy to see how a roman bridge can get started and eventually stack up and blind off whole sections of bags.

Many of our competitors also blow dust off of one row of bags right onto the adjacent bag they just cleaned. The patented RF always skips at least one section of bags before pulse cleaning the next, thus leaving a dirty wall between the bag being cleaned and the previously cleaned bag.

Just having the same amount of filter area as an RF is no guarantee that competitors can keep it as clean and operate it with as low a pressure drop.

RF filters will clean almost any dust from 1 to 40lb./cu. ft. at loadings as high as 2500 grains/cu. ft. and use less than 1" to 4" W.G. flange to flange, while emitting less than .002 grains/cu. ft.

I do not believe that there is a better fabric collector value offered worldwide.

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