Self-Cleaning Cartridge Downdraft Tables

Using Patented DualDraw ® Airflow Technology

DualDraw Self-Cleaning Downdraft Equipment is an air filtration solution for heavy-loading dust or fume collection. Constructed with safety and efficiency in mind, this dust collector combines the patented DualDraw airflow design of the perforated surface and signature vented back stop with a superior self-cleaning cartridge filtration system.

Vertically aligned cartridge filters allow for optimal cleaning effectiveness and dust migration through the Goyen designed variable venturi pulse throat and expansion cone system. Solutions are configured to ensure the proper ratio between air flow and filter media based on the particular customer application. This balanced approach results in extended filter life and proper cleansing of the filter media - both extremely important goals in a high-quality cartridge collection system.

General Specifications

Available Models	Tables with Vented Back (Shown), Flat Top Tables, Booths, Walk-In Clean Air Stations.
Characteristics	Patented DualDraw design: even distribution of airflow across a perforated surface and vented back stop. Modular fastening system provides flexibility to cost effectively meet customer specific requirements.
Filter System	Filter systems attach to the back side of equipment. Choose between HEPA, dust collection, smoke capture, and fume removal filtration.
Available Sizes	Standard sizes are 48”, 60”, 72”, and 96” lengths. Standard depth of the work surface is 30” with an additional 24” depth for the filter housing. Flexible design allows for cost-effective size modifications.
Work Surface Area	The standard surface area of DualDraw downdraft equipment ranges from 4.5ft2 to 20ft2. The surface of the equipment is covered with 5” wide perforated C-channel grates. Each grate has hundreds of evenly spaced 1/2” x 3/16” perforations that provide for an equal distribution of the airflow across the surface.
Table Capacity	500 lbs. – 1,000 lbs. distributed weight.
Cabinet	12-16 gauge uni-body construction.
Finish	Electro Galvanized. Powder coat paint finish available.
Filters	13” x 26” High efficiency cartridge filters, 80/20 blend, 180ft2 of filter media per filter.
Spark Arrestor	Double layered spark arrestor to catch residual particulate and reduce fire hazard.
Self Cleaning	Pulse using 80 psi of compressed air. Variable venturi pulse throats and expansion cone. Goyen design system. Manual or Auto Pulse options available.
Dust Pans	Removable front and back dust pans for easy cleanout and maintenance.
Electrical	Units come pre-wired with magnetic motor starter, thermally protected.
Lighting	Standard on booth models, optional on table models. 2 bulb fluorescent.
Motor/Blower	5 HP 230/460 volt, 3 phase, TEFC blower motor 14.0 / 7.0 amps. Higher HP motor available. Fan is backward inclined.
Capture Velocity	250 – 350 FPM depending on size of unit.
Air Volume	3,000 CFM @ 7”w.g. – self contained. 68% through table surface and 32% through vented back.
Sound	Ranges from 82 – 86 dB at operator working zone. Silencer package available.
Magnehelic Gauge	Indicates when filters should be checked and/or changed.
Unit Weight	Varies based on size. Range from 1,200 to 1,500 lbs. uncrated.
Caster Wheels	Optional heavy duty 3.5” caster wheels for ease of movement.
Assembly	None required. Ships complete, FOB Commerce City, CO
Regulatory	Helps meet OSHA Standard 1910.1000 (air contaminants).