You may not need a more powerful dust eventually. This word of the carpenters, who have replaced the original equipment filter bags their collectors with bags, which are more effective. You may ask: “What can be more effective than 1 micron bag that came with my collector?” A 1 micron bag that is properly sized for your machine and surface treated for optimal performance, according to the people on the American fabric filter companies (AFF). They specialize in custom-made filter bags for dust collection systems. The correct size of the bag To choose the right bag ensures proper air-to-cloth ratio, which allows most of the dust that comes to slow down and fall out of the air stream before it reaches the filter. ratio is determined by the rated power of the air manifold (calculated in cubic feet per minute or CFM) and the surface area of the filter rating and CFM. Ideally, according to the AFF, CFM total score bag should be from 50% to 100% more than the nominal power of the air manifold. Many single-stage manufacturers include lower dust collector bag in the calculation of the ratio of air to the tissue. This allows you to use a smaller bag at the top, which minimizes the overall size of the collector. however, the lower bag filled with debris, air-to-cloth ratio of the machine and its ability to collect dust and reducing. the best solution is to use a dust bag without breathing at the bottom and correctly matched filter bag top. the only drawback is that this installation usually requires more space. Low can velocity Here is a simple test to see if the bag replacement will improve the ability of your dust collector: turn it on. if the upper bag inflates with pop and hard to the touch, the new package could help. Hard inflated bag is a sign that its filter material becomes clogged, or that the rate of collection is too high (which is probably why the filter is clogged). Could this speed the rate at which air enters the filter. For optimum filtration, can speed should be kept to a minimum; otherwise, the dust in the air flow gets pumped into the filter, where it prevents air from entering. Once impregnated filter dust, it is difficult to clean. Large bag reduces the speed can, as it has a larger volume, allowing air to slow down before it contacts the filter. The filter will work most effectively if there is a big difference between the rate may be a collector and is at the input speed (speed of the air in the impeller). When this is the case, much of the dust will fall out of the airflow and dust that remains will not be tightly packed against the inner surface of the filter. In fact, due to the low rate may, dust, tend to fall off by itself. As a larger filter bag style pleated filter cartridge is more efficient than the conventional filter bag OEM, since the surface area of the pleated filter much more. However, cartridge filters, generally have a higher speed than can a large bag, according to AFF, because of their compact size (generally considered to be an advantage), which holds the filter close to the air flow. High speed can not allow dust to fall on their own pleated filter, so the filter is likely to require more frequent cleaning. A thin dust cake A layer of dust, which is formed on the inner surface of the filter cake is called dust. Fine dust cake is essential for maximum performance. In addition to providing most of the fine filtration, thin cake that creates a barrier that keeps dust-laden air coming from the impregnation of the filter. Of course, if the dust cake becomes too thick, filtration suffers. Therefore, low speed can be so important, it allows most of the dust cake to peel off when it gets to heavy, leaving only a thin layer, which always remains on the filter. A singed surface Polyester felts for filtering is preferably wood dust, but not all of the same polyester felt bag because the felt surface can be treated to address specific types of dust. Wood dust is not easy to stick to the felt, which has what is called a “scorched” aftertaste. Untreated felt, on the other hand, wood dust acts as a coalescer. AFF encourages polyester felt with singed finish to collect wood dust, due to its high breathability, fine filtering and superior dust cake build / release properties. In a nutshell When pairing the right filter fabric with an appropriate surface treatment and the correct ratio of air-to-cloth for air flow collector can capture dust particles as small as 1 micron. Initially, felt fabric makes filtration, while a very thin layer of fine dust creates its scorched surface. This fine dust cake then does the actual filtering of all subsequent dust, which is blown into the bag. like a cake builds in thickness, scorched surface of the felt to prevent it sticking permanently. When the cake is too heavy, it just peels off, leaving behind a thin layer to continue the process.
