Superior Air Model SD23 Dry Cartridge Style Downdraft Table
Application: Grinding and Debur of Composite rubber coating on electric motors
Superior Air Products received a call from a potential customer inquiring about our self-cleaning, high efficiency downdraft tables for a dry dust. The end user was currently using a competitor’s downdraft table (Grizzly brand) that was geared more towards woodworking and home use than heavy industrial use. The client was happy with the suction on the table, however the competitors unit was not stopping the dust in the filters and instead dust was being blown through the filters and back all over their shop.
While the application of deburring and grinding on encapsulated motor windings involved a tremendous amount of fine dust, we explained that some tables are not meant for use in high production and very fine dust loading, but that our tables would work very well because of our design and the use of nanofiber self cleaning cartridge filters. The nanofiber is the highest efficiency self-cleaning filter available on the market at MERV 15 or 99.97% efficient down to 0.3 microns. If you are not familiar with microns, smoke is normally in the 0.3-0.8 micron range. Any sort of dust will typically be above 1 micron, so when we use these filters, we are nearing 100% efficiency.
The customer was excited to see the unit perform with his exact parts, so samples were sent in and can be seen on the attached video. You will see that we are capturing all the dust with no dust emissions on the exhaust. As with every Superior Brand product, we offered the customer a money back guarantee and they are now a very happy Superior Air Products customer. You too can take advantage of the impressive performance and cost saving downdraft tables from Superior Downdraft by contacting us today!
How the Downdraft Table Operates
Superior utilizes a direct drive high capacity blower wheel to produce 300 feet per minute of downdraft velocity (much higher than required by OSHA). All dust is drawn down into the unit through a fiberglass grate, through a series of spark baffles and finally into the fire retardant nanofiber filters. During operation, the self cleaning filters use compressed air to dump the dust captured into an easily removable dust drawer that should be emptied daily. Typically the filter in this unit is replaced annually on a one-shift operation. List price on this particular filter is $105, so the annual cost of operation is only $105 plus the cost of electricity to power the ¾ HP motor blower, resulting in an extremely low cost of ownership.