The particles released during manufacturing processes are hazardous to both worker and equipment health, quickly leading to a number of problems if particles are not captured by dust collection equipment and filtered from facility air. Dust collection addresses this problem by drawing contaminated air through a filter or separator, trapping harmful particles and releasing cleaner air into the atmosphere or back onto the work floor. Read More…
Downdraft Table Informational Video
Quality Air ManagementChapel Hill, NC | 800-267-5585
With 20+ years in the industry, it is no wonder Quality Air Management manufactures and supplies the newest, most revolutionary technology available. This includes a wide variety of quality dust collectors in standard and custom configurations.$$$
Scientific Dust CollectorsAlsip, IL | 708-597-7090
Scientific Dust Collectors (SDC) began in 1981 when our first patent for improving filter cleaning was issued. Since then, SDC has been issued a number of additional related patents for improvements in dust collector cleaning technologies including our patented nozzle-based cleaning system which is superior to other collectors. Combined with our High Side Inlets, Wide Filter Spacing, and Inlet Baffling, we are able to guarantee performance, efficiency, and filter life. If you want the best, please consider SDC.$$$
Griffin FiltersLiverpool, NY | 315-451-5300
Griffin Filters is a trusted and dedicated leading manufacturer in the dust collector industry. We offer a wide selection of dust collectors with customization options available in order to serve various industries. Our experts are committed to manufacturing high-quality dust collectors that fit our customers' needs at competitive prices. Since its start in 1950, Griffin Filters has been setting industry standards in the dust collecting industry.$$$
RoboVentSterling Heights, MI | 888-928-4215
Ever since our inception in 1989, Robovent has been a leader in the manufacturing and design of ventilation and filtration systems. We have experience coming up with solutions to protect our customers from a wide range of dust, including aluminum dust, cast iron grinding dust, fertilizer dust, and more. Industries we serve include automotive, military, construction, medical, and aerospace. For a complete list of our services and capabilities, visit our website or call Robovent today!$$$
Delfin Industrial VacuumsPlymouth, MN | 877-205-9015
As a leading manufacturer in the dust collecting industry, Delfin Industrial Vacuums is dedicated to manufacturing high-quality products. Our main focus has always been to provide our customers with high-quality products that are built to last. Delfin is an ISO 9001 certified company.$$$
Midwest Finishing Systems, Inc.Hartland, WI | 800-854-0030
Our dust collecting systems are designed to eliminate respirable airborne contaminants from the work environment. Eliminating airborne contamination in the workspace can lead to better employee performance and a lower rate of absenteeism.$$$
Atlantic Dust CollectionKernersville, NC | 336-906-4817
Atlantic Dust Collection is committed to providing you with the highest level of customer service and the best most cost effective way to keep your facility clean, safe and functioning properly. Our highly skilled team has the application knowledge and experience to provide the best solution for your application as well as your budget. We are dedicated to our customers and will continue to provide effective solutions and support to meet the demand on site.$$$
Industrial dust collectors come in various types and sizes, including fabric filter baghouses and jet dust collectors, cyclone dust collectors, wet dust collectors, cartridge collectors, small dust collectors, portable dust collectors, downdraft tables and dust collecting systems complete with multiple suction hoods and overhanging ductwork.
Dust collection is a vital process for coal handling, cement fabrication, metal fabrication, mining, chemical processing, woodworking, pharmaceutical, recycling and agricultural industries, among many others. Industry-specific state OSHA regulations require companies to hold their facilities to strict standards for indoor air quality, and the EPA and other regulatory bodies put limits on emissions of dust, smoke and fumes into the atmosphere.
Dust collectors play a major role in helping companies meet these requirements and improve both indoor and outdoor environments by capturing a high percentage of the particles emitted by industrial processes. Downdraft tables are ideal for industries such as metalworking, woodworking, pharmaceutical, automotive, coal handling, agricultural products and recycling. One of the advantages of downdraft tables over other systems is that they can be customized in numerous ways to fit a particular application, without having to retrofit an integrated dust collection system.
Down draft tables are designed to contain and exhaust heavier than air particles, lighter than air particles, fumes, fine particulates and powders. The top of downdraft tables is a perforated rigid grill through which airflow is both possible and uniform. Once air is pulled down through the perforated top it enters an exhaust chamber mounted directly underneath the top. The exhaust chamber contains filters that can capture particles as small as .5 microns.
Some tables are equipped with pulse-jet air blasters directed at the filter that periodically clear off the filter to improve its operation. In addition, the exhaust chamber has multiple branch ducts attached underneath with balance dampeners attached to decrease the noise level. Everything underneath the exhaust chamber is enclosed into a duct that can connect to a facility’s duct collection system or can have an output area on the side or back of the chamber for the filtered air.
There are two main types of downdraft tables: wet downdraft tables and dry downdraft tables. Wet downdraft tables employ a standard filter element and a liquid, typically water, in order to collect flammable metal dusts like magnesium, aluminum or titanium. Wet dust collectors in downdraft tables feature a number of additional devices including impellers for water reversal, sludge containers for captured metal particles, water level controls, after-filtration devices and mist eliminators.
Dry downdraft tables are simpler, employing a standard filter element to collect vapors, dust, smoke or fumes. Besides wet versus dry, downdraft tables also vary by size, downdraft airflow, minimum particle size filtered and efficiency.