North Dakota Air Clean Products

Denray Machine, Inc.
Tube Filtration Systems

Denray Machines tube filtration system has replaced the manual pleated filters only. The cartridge system is the best filtration system, and will stay the same. The tube filtration system is the second best filtration system.
Most bag houses use the tube system. The dust is captured inside the tube and, with most types of dust, falls from the filters into a dust drawer below when the machine is turned off. A soft bristled brush (furnished with the entire tube filtration model of tables) can be used to run inside the filters, offering a deep cleaning procedure for the filters if needed.
The tube filters clean with a 99% capture rate at 1 micron, creating a much superior filtration system than any pleated filters.
The tube filters can be used in places where only the cartridges could previously be used, but only in lighter applications. While having close to the same capture rate, the tube filters do have less cloth to air ratio which makes the cartridge filters still the best in any heavy applications. The tube filters will work with finishes, fine sanding dust and in light solid surface applications. Life expectancy for the tube filters is between 1-2 years with average use.
Optional Features On All Models: Exhaust Mufflers, Magnehelic Gauges, HEPA Filter Banks, 3-Sided 20” Shields

Model	Motor/HP	CFM	Table Size	Casters	Sound Level
2800	1 1/2	2800	28" x 48"	Standard	70 Decibels
2872	2	3400	28" x 72"	Standard	77 Decibels
2896	2	3500	28" x 96"	Standard	78 Decibels
3660	2	3400	36" x 60"	Standard	77 Decibels
3672	2	3500	36" x 72"	Standard	78 Decibels
3696	2	3800	36" x 96"	Standard	78 Decibels
4800	2	3400	48" x 48"	Standard	77 Decibels
7200	2	3800	48" x 72"	Standard	78 Decibels
9600	3	4300	48" x 96"	Standard	81 Decibles

Optional Features On All Models: Exhaust Mufflers, Magnehelic Gauges, HEPA Filter Banks, 3-Sided 20” Shields