Downdraft Tables Specifications Document [1].doc

This is a specifications document for the State of Maine regarding downdraft tables needed for the Maine Military Authority's Fiberglass Shop, which reconditions Humvee vehicle hoods. The State requires delivery of four downdraft tables within six weeks of award and six additional tables within 120 days of award, for a total of ten units. Each downdraft table must measure 6 feet wide by 8 feet long by 36 inches high with a perforated, galvanized steel surface featuring quarter-inch holes. The units must be self-contained with advanced filtration systems and no outside ventilation requirements. Each table must operate at a standard temperature of 70 degrees Fahrenheit and feature a 2 horsepower, three-phase, 60-hertz, totally enclosed fan-cooled motor rated for 208, 230, 460, or 575 volts, with a 17-inch wheel and seven-cone assembly plug-type fan operating at 1,750 RPM with 4,000 cubic feet per minute airflow at 3 inches of water column pressure.

Each downdraft table must include two 12-inch by 26-inch pleated cartridge filters with 80/20 flame-retardant cellulose construction, providing 397 square feet of filter area with 97.5 percent efficiency at 0.05 microns and 99.5 percent efficiency at 0.08 microns, along with spark arrestance. Standard features include a water tray, semi-circle metal cartridge baffle deflectors, reverse pulse compressed air filter cleaning assemblies with automatic activation, and an internal compressed air tank providing 80 to 100 psi. Award evaluation will be based on best overall value to the State of Maine, 24-hour service availability, bidder-specified warranties, quality, and adherence to delivery timeframes. The State will consider equal or greater value in lieu of the specified requirements.