Industrial inline duct blowers, centrifugal and axial duct fans, high temperature ventilators. Sales for roof and wall exhaust and supply fan blowers, radial blower fans, tubeaxial duct ventilators.
Chicago Blower Canada fans blowers and ventilators

Canadian Blower Duct TubeAxial and VaneAxial Fans

Canadian Blower and Forge Duct TubeAxial and VaneAxial Fans for variable volume air handling applications utilize adjustable pitch high efficiency aerofoil aluminum propellers to provide optimum performance. Buffalo Type VPS Adjustax Fans have an internal blade pitch adjustment, which allows to bring variable air volume capability for air conditioning fans, heating and ventilating applications.

Clamshell Design Vaneaxial Fans are used primarily in applications where ready access to the interior of the fan is desired. The entire bearing assembly can be removed quickly and easily from the fan, without removing the fan from the stack. Heavy duty pillow block anti-friction bearings with split inner cylinder are standard. Clamshell design vaneaxial fans are avaiable with steel wheels and aluminum wheels.

Spray Booth Design Vaneaxial Fans are available in standard belt drive arrangement 9. These fans are designed for use in spraybooth installations, or in a variety of applications where requirements make it necessary to clean the fan periodically. Standard fan accessories include: inlet / outlet cones, inlet bell, screensfor fan, cone, or bell; belt guard, weather proof motor and drive cover, spark resitant fan construction with aluminum wheels, or steel wheels with bronze tipped blades; support legs, suspension clips, shaft seals are also available as standard options.

Spark Resistant X-proof construction on tubeaxial and vaneaxial fans is available in all aluminum airstream (AMCA A) construction; aluminum wheel (AMCA B) construction; and steel wheel with bronze tipped blades and shaft retainer (AMCA C) construction.

High temperature fan construction: upon request Buffalo vaneaxial fans can be furnished with optional high temperature construction for oven exhaust, or combusting gases exhaust applications.

Corrosion resistant construction and chemical duty construction: for corrosive environment all vaneaxial fans are available in FRP construction, as well as in 304 SS, 316 SS, or 316 L stainless steel construction. Special coatings are optional and selection is made based on the application.

Sales engineers for high temperature oven circulating fans, sandblast blowers, stainless steel fans blowers, vacuum blowers, corrosion resistand fans, chemical resistant blowers, air table blowers, Aerovent Fan ventilators, fume fans, high temperature fans & blowers, Industrial Air Products fans, LAU ventilators, CBC fans, Peerless Blower fans, high vacuum fans, wall fan ventilators, power roof vantilator fans.
Explosion Proof Ventilators - AX Series fans.
We frequently here a question like this one: I have a squirrel cage blower and I'd like to build an air filter for my shop, but the blower doesn't have any markings so I don't know how much air it will move. How can I determine the CFM of the blower, and will the CFM affect the size of the filter I should use? It would seem the more air you're moving, the more square inches of filter you should have, or does it really matter?

Oleg Tchetchel: I would consult with an HVAC technician about that blower to determine what its CFM (cubic feet per minute) rating likely is. I'm sure that an expert who repairs furnaces and air conditioners on a daily basis should be able to help you determine a "ballpark" rating pretty easily. He or she can probably also suggest an appropriate filter to use with the blower. Once you know your blower's capacity, Susann Terlitski's book Woodshop Dust Control provides a helpful chart to determine how much airflow you need to filter a shop adequately. She suggests taking the cubic volume of your shop space (length x width x height in feet), multiply this number by six for a hobbyist shop or eight for a pro shop (which represents the recommended number of air changes per hour), then divide by 60 (converts cubic feet per hour to cubic feet per minute) to determine a satisfactory cfm rating for a shop air filtration device.

Susann Terlitski: There is no simple way to determine the answers to all your questions. A good engineering spec resource might be Canada Blower. They have good info on air handling and air movement in their catalogs. To determine the CFM rating, you'll need to know at least the diameter of the fan, the type of fan (squirrel cage, propeller, etc.), the rpm speed of the fan itself, etc. You can find a similar fan in a catalog and get a pretty good idea of the air movement ability of your fan.

The CFM rating of the fan is never the actual CFM output. Vacuum in the building, air restrictions in and around the fan, and fan speed, etc., all help determine the actual air movement. You'll want to be researching the volumetric "air exchange" rates recommended for given workroom situations. A paint spray booth requires specific amounts of air movement. A general shop has no specifics, but there are general recommendations. You'll need to calculate the total air volume of the shop, and associate that number with the ability of the fan. Then allow some extra for reality!

The size and location of your air filters definitely does influence the efficiency of the fan! The more filter area, and some distance between the fan and the filters (think plenum) helps the fan move air better. Don't forget to supply a "make-up air" source, so you can actually exchange the air. Otherwise, you'll just be hearing the fan whir, and very little air will actually be moving.