Blower Fan

Heavy-Duty Industrial Blowers Fans

Aside from the small squirrel cage blowers used on some electrical equipment, the most common blowers of this type are the units used for drying carpet after cleaning or a fire, the blowers used for leaf sweeping and the unit hidden inside a vacuum cleaner.

In the axial flow ventilator the air must blow in line with the axis of rotation and there must be blades with space between them.  With few exceptions, the axial blower or fan must not have a lot of back pressure and will work a lot better if the blade is shrouded.  One obvious exception is the turbine compressor used in jet engines, but this requires very tight fittings and very high speed so the air is being rammed in against the outgoing air much faster than it can move - it uses a lot of power and makes a lot of noise.  Shrouding works better because the greatest loss in an unshrouded fan is the air coming off near the tips and immediately turning out and back circulating only through the fan and not through the room. The most common shrouded fan people see is muffin style fan in computers.  An axial blower can have multiple sets of blades and the blades can even over lap so light is not visible through the fan.  Fans are used most often for moving large quantities of air between spaces at atmospheric pressure.
 
Centrifugal blowers come in a number of forms of which the most common is the squirrel cage blower.  The common factor is the air is moving perpendicular to the axis of the part that is moving the air.  Typically, the air is drawn in through the side of the unit, turns at low speed to encounter the inside of a spinning cylinder with ribs or vanes around the wall of the cylinder which fling the air out and away where it is captured and aimed through an outlet much smaller than the inlet.  Think of taking an open tin can, drilling a hole in the center of the bottom to take a bolt as an axle and cutting slots up the sides, bending the material of the slots in, then spinning it with a drill.  A variation looks like a plate with ribs running from the center and increasing in height toward the rim, the air being thrown off the rim.   The name squirrel cage comes from the appearance like the tread wheel small rodents use for exercise - I suspect it is not called a hamster tread wheel because that is too precise - or childish. Blowers can have higher output pressures, but not a lot higher and they lose capacity rapidly with increasing pressure. In centrifugal fan, as opposed to axial flow fan, the air is moving perpendicularly to the fan shaft. Often called a "squirrel cage" (due to its similarity in appearance to exercise wheels for pet rodents), the centrifugal fan has a moving component (called an impeller) that consists of a central shaft about which a set of blades, or ribs, are positioned. Centrifugal fans blow air at right angles to the intake of the fan, and spin the air outwards to the outlet (by deflection and centrifugal force). The impeller rotates, causing air to enter the fan near the shaft and move perpendicularly from the shaft to the opening in the scroll-shaped fan casing. A centrifugal fan produces more pressure for a given air volume, and is used where this is desirable such as in leaf blowers, hair driers, air mattress inflators, inflatable structures, and various industrial purposes. They are typically noisier than comparable axial fans. A mixed flow fan is an air moving device in between axial flow fan and centrifugal fan. Mixed Flow fans are an excellent choice for return air, supply, or general ventilation applications where low sound is critical. As compared to similarly sized tubular centrifugals and vane axials, a mixed flow fan will be 5-20 dB quieter! In addition, the mixed flow wheel is extremely efficient and will cut down on operating expenses.

Caution is necessary in selecting blowers for series installtion. It is generally accepted that most pre-engineered blowers are capable of withstanding twice their catalog rated static pressure. In other words, where two blowers are installed in series the second blower housing should withstand the higher pressure. There is, however, a need for concern when the combined pressure exceeds twice the rated static pressure for one blower. In series applications involving three or more blowers, or in any system in which positive or negative pressure exists prior to the consideration of the blowers, special housing reinforcement may be necessary.

For additional information please refer to http://industrialpressureblower.com/blower.html.

Susanna Terlitskaia
Industrial Engineer
Industrial Pressure Blower Co.
http://industrialpressureblower.com/pressureblower.html
http://industrialpressureblower.com/airhandler.html

About the Author

Oleg Chechel
Ventilation Equipment Designer
Canada Blower

http://www.canadablower.com/index.html

http://www.canadablower.com/oem/index.html

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Cyclone Blower - Antec Cyclone Blower Fan - 2200Rpm $8.52 cyclone Blower 111x89x21mm, Low Noise, Fits Into Any Expansion Slot. Help Cool Video And Other Expansion Cards [472228] UPC: 761345770941 UNSPC: 40101604 8L x 6.75W x 1.25H 0.35 LB 0.06 Cubes

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Stanley 655702 Blower Pivoting Utility Fan $82.4 Stanley Blower Fan. Multipurpose fan delivers direct high velocity. Stream for cooling ventilating exhausting. Pivoting blower head blasts air where needed most. 10 cord with grounded plug 100 blade for maximum. Two 120 volt grounded outlets for accessory use.

LASKO 655704 MultiPurpose Blower Fan $71.31 The stanley blower fan multipurpose pivoting utility fan is great for use in tight spaces where fres air is essential like work spaces attics basements and garages. It features three powerful speeds a rugged easy to carrry handle and offers quiet high velocity power. Great for drying carpets floors walls and furniture. Includes patented fused safety plug. Fully assembled. Etl listed for safety. features circuit breaker with reset button. Includes two 120 volt grounded outlets for accessory use. Dimensions: 12.2 x 9.6 x 12.3 .

Lasko Products 4930 HVB Oscillating Blower Fan $97.96 HVB High Velocity Oscillating Blower Fan with Remote 3Speed. Remote control (batteries included) . The power of 20 High Velocity Floor Fan in a Streamlined Body. OnBoard Remote Control Storage. 3 Powerhouse Speeds Electronic AutoOff Timer Fully Assembled ETL Listed EasyGrip Handle Oscillation for Broad Area Coverage

Blower Motor Fan by Chrysler $38.99 1999-04 WJ Grand Cherokee

Lasko® Stanley® High-Velocity Blower Fan $174.5 Fans ideally for drying after cleaning the house. Rotary-blades ideally used for dry carpets, floors, furniture, windows and walls after cleaning your household. Multi-useful fan provides a straightforward, high velocity air stream. Best for work site ventilation and tiring work areas or when situated in the garage as it keeps one cool on the job. Features two 120 V grounded outlets for accessory usage, it is a great workplace companion. With a rugged, travel-friendly handle. Patented, total-range, pivoting blower head gives off necessary wind where it is most needed. Equipped with a ten-foot cord with grounded plug. Three powerful speeds with a circuit breaker with reset button and modifiable tilt. Fan has high-velocity air stream for exhausting cooling, drying, and ventilating. Blower fan in Black and Yellow.

Lasko 655702 Stanley Pivoting Blower Fan $82.4 Multipurpose fan delivers direct high velocity air stream for cooling ventilating exhausting and drying. Use at the work site for ventilating and exhausting work areas. Use in the garage for staying cool on the job. Great for drying floors furniture windows and walls after cleaning. Pivoting blower head blasts air where needed most. Fully assembled for immediate use. Rugged easy to carry handle. U.L. listed. 10 cord with grounded plug. Length: 12.12. Width: 11.5. Height: 9.25

Lasko 655702 Fan Utility Blower Model $82.4 Want to get the job done right and stay cool. Now you can. The Stanley BlowerFan is unlike anything you ve seen. This multipurpose fan delivers a direct high velocity air stream for cooling ventilating exhausting and drying. Use at the work site for ventilating and exhausting work areas. Use in the garage for staying cool on the job. With two 120 volt grounded outlets it is the perfect worksite companion. Not only at the worksite it s great for home use too Use to dry carpets floors furniture windows and walls after cleaning. 100Blade Blower for Maximum Air Stream Two 120 Volt Grounded Outlets for Accessory Use Rugged EasytoCarry Handle Pivoting Blower Head Blasts the Air Where Needed Most TenFoot Cord with Grounded Plug Fully Assembled for Immediate Use U.L. Listed

Fan: 273 cfm Squirrel Cage Pole Blower by Dayton: HY $135.2 DAYTON 273 CFM SQUIRREL CAGE 4C447 SHADED POLE BLOWER FAN WITHOUT POWER CORD A great all-around blower. You can reduce the CFM of the blower by partially blocking the intake, but it is a no no to block the blowers output. That will burn the blower out. CFM means cubic feet of air per minute. Circular Intake: Inner hole 4.5 inches, Outer plate covering hole 6.5 inches. Square Output: Inner square dim. 4 1/16 inches, Exterior of the square is 5.5 inches.

Fan: Eco Plus Blower 465 CFM: J $100.26 465 CFM Ecoplus Blower will exchange air in a 2200 cu. ft. room in 5 minutes For fan powered air cooling and and exhausting air outside 465 CFM output Heavy duty grounded 10 ft power cord 4 inch circular intake flange for 4 inch diamater flexible duct 6-hole rectangular flange accomodates exhaust adaptor with two 4 inch duct flanges or a single 6 inch duct flange Actual exhaust rectangle measurements are: 9 3/8'' external (7 5/16'' internal) x 3 ¾'' external Motor HP: 1/40 th Amperage draw: 2.2 Search ‘Blower Adaptor’ for duct fittings. • Attractive gray powder coated steel housing • Quiet, powerful and dependable - industrial grade quality • Full color label on outer carton • Intake flange adapters built right into fan, no need to purchase hose adaptors separately • See our Blower Adaptors for intake and exhaust size adaptors for all EcoPlus and Dayton Blowers • 10 foot grounded power cord pre wired into each unit • Excellent way to control temperature and humidity in any growing area • CFM is a measure of blower power standing for cubic foot of air per minute • 1 year warranty When plants are grown indoors the natural balance that is present out of doors must be achieved indoors by way of fresh air ventilation or CO2 enrichment. Air exchange is necessary to help fight CO2 depletion and to cool your grow room down for best plant growth. There’s no more efficient way of exchanging air than with an exhaust blower. Popular 'squirrel cage' fans, technically known as shaded pole blowers, quickly exhaust stale air out of hobby greenhouses and growrooms while bringing fresh, clean air in. Mount securely to wall or ceiling. Quiet, powerful performance; exclusive duct hose adapter flange; safety intake grill. UL and CSA Listed. Figure size needed for general room exhaust by taking cubic feet of room and dividing by 5. Fan with cubic feet per minute (CFM) rating just above the result will completely exhaust stale air in 5 minutes as recommended. Thus, 265 cfm will completely exhaust stale air in a 1200 cu. ft. room in 5 minutes. Forward curved wheels with Class B insulation. Open drip-proof motors are rated for continuous use.

The Speedster Speed Controller for Fan, Blower or Pump Motor: HY $24.64 Control Wizard Products presents... The Speedster motor speed controller. Control the speed of your fans, blowers or pumps. Variable speed, OFF and full ON settings. A great little tool. The Speedster™ Fan/Blower Speed Controller Instructions 1. Before using this speed controller please read the instructions that came with your fan/blower to familiarize yourself with its operation. 2. Verify that the Speed Controller’s switch is in the OFF position. Plug the Fan/Blower’s electrical cord into the Fan/Speed Controller’s outlet. 3. Plug the Fan/Speed Controller’s electrical cord into a properly grounded 120 volt AC outlet. *** Note: Any length of grounded extension cord used with this Speed Controller must be rated for 15 Amps. 4. BE SAFE with all electrical equipment. Periodically check the electrical cords connected to the Fan/Blower Speed Controller for signs of overheating. Turn the Fan/Speed Controller OFF and unplug it from its outlet. Then check all electrical connections for corrosion (especially in areas of high humidity) and wire cords for damage. When cords get hot, a meltdown or electrical fire could result. 5. Not for use with brush-less, capacitor run or magnetic motors. Equipment damage may occur. Safety Warnings and Precautions 1. Observe Work Area Conditions: Do not operate the Fan/Blower Speed Controller in a damp location. Do not expose to rain or snow. Use approved extension cords capable of a 15amp draw. Periodically check the electrical cords connected to the Fan/Blower Speed Controller for signs of overheating. Turn the Fan/Speed Controller OFF and unplug it from its outlet. Then check all electrical connections for corrosion (especially in areas of high humidity) and wire cords for damage. When cords get hot, a meltdown or electrical fire could result. 2. Keep children away from work areas. 3. Store the Fan/Blower Speed Controller in a dry location when not in use. 4. Not for use with brush-less or magnetic motors. Equipment damage may occur. Maintenance 1. To clean the Fan/Blower Speed Controller make sure it is unplugged and detached from equipment. Wipe the unit off with a clean damp cloth. Never use chemicals or solvents. 2. If the fuse blows, you may be using a fan or blower that uses more current than the Fan/ Blower Speed Controller can deliver. Replace the fuse with a 15amp fuse. 3. Store the fan/Blower speed Controller in a clean and dry location away from insects and pests. Warranty Replacement or Repair Warranty: 90 days for defective parts and materials from date of purchase. Proof of purchase required. Warranty does not cover abuse.

Fan: Eco Plus Blower 180 CFM: J $83.26 • Attractive gray powder coated steel housing • Quiet, powerful and dependable - industrial grade quality • Full color label on outer carton • Intake flange adapters built right into fan, no need to purchase hose adaptors separately • See our Blower Adaptors for intake and exhaust size adaptors for all EcoPlus and Dayton Blowers • 10 foot grounded power cord pre wired into each unit • Excellent way to control temperature and humidity in any growing area • CFM is a measure of blower power standing for cubic foot of air per minute • 1 year warranty When plants are grown indoors the natural balance that is present out of doors must be achieved indoors by way of fresh air ventilation or CO2 enrichment. Air exchange is necessary to help fight CO2 depletion and to cool your grow room down for best plant growth. There’s no more efficient way of exchanging air than with an exhaust blower. Popular 'squirrel cage' fans, technically known as shaded pole blowers, quickly exhaust stale air out of hobby greenhouses and growrooms while bringing fresh, clean air in. Mount securely to wall or ceiling. Quiet, powerful performance; exclusive duct hose adapter flange; safety intake grill. UL and CSA Listed. Figure size needed for general room exhaust by taking cubic feet of room and dividing by 5. Fan with cubic feet per minute (CFM) rating just above the result will completely exhaust stale air in 5 minutes as recommended. Thus, 265 cfm will completely exhaust stale air in a 1200 cu. ft. room in 5 minutes. Forward curved wheels with Class B insulation. Open drip-proof motors are rated for continuous use.

Fan: Eco Plus Blower 265 CFM: J $90.06 • Attractive gray powder coated steel housing • Quiet, powerful and dependable - industrial grade quality • Full color label on outer carton • Intake flange adapters built right into fan, no need to purchase hose adaptors separately • See our Blower Adaptors for intake and exhaust size adaptors for all EcoPlus and Dayton Blowers • 10 foot grounded power cord pre wired into each unit • Excellent way to control temperature and humidity in any growing area • CFM is a measure of blower power standing for cubic foot of air per minute • 1 year warranty The round exhaust adapter is 4'' in diameter, and fits standard 4’’ ducting. The rectangular intake is: Inner Dimensions: 3.5’’ x 4’’ Outer Dimensions: 5’’ x 5.5’’ When plants are grown indoors the natural balance that is present out of doors must be achieved indoors by way of fresh air ventilation or CO2 enrichment. Air exchange is necessary to help fight CO2 depletion and to cool your grow room down for best plant growth. There’s no more efficient way of exchanging air than with an exhaust blower. Popular 'squirrel cage' fans, technically known as shaded pole blowers, quickly exhaust stale air out of hobby greenhouses and growrooms while bringing fresh, clean air in. Mount securely to wall or ceiling. Quiet, powerful performance; exclusive duct hose adapter flange; safety intake grill. UL and CSA Listed. Figure size needed for general room exhaust by taking cubic feet of room and dividing by 5. Fan with cubic feet per minute (CFM) rating just above the result will completely exhaust stale air in 5 minutes as recommended. Thus, 265 cfm will completely exhaust stale air in a 1200 cu. ft. room in 5 minutes. Forward curved wheels with Class B insulation. Open drip-proof motors are rated for continuous use.

Lasko HVB High-Velocity Blower Floor Fan $96.99 This floor fan features top-mounted controls for simple operation and directional louvers that let you point the airflow where you want it for custom comfort.

Lasko 655702 ThreeSpeed HighVelocity Blower Fan Black amp; Yellow $182.22 This multipurpose fan delivers a direct high velocity air stream. Use at the work site for ventilating and exhausting work areas or in the garage for staying cool on the job. With two 120 volt grounded outlets for accessory use it is the perfect worksite companion. Use it at home to dry carpets floors furniture windows and walls after cleaning. Its pivoting blower head blasts air where it s needed most. Features a rugged easytocarry handle and a tenfoot cord with grounded plug. Fan Head Size: N/A; Fan Type: Blower; Width: 9 1/2 in; Color(s): Black; Yellow.

Lasko® Stanley® High-Velocity Blower Fan $174.5 High velocity fan best suitable for tiring workplaces. High-velocity fan with a rough, easy-to-carry grip Utilize at the workplace for ventilating and exhausting work spaces or in the garage for remaining cool on the job This multi-functional fan gives a straight, high velocity air stream Patented, whole-range, pivoting blower head blows away air where it is most necessary Utilized at home to dry floors, windows, furniture, carpets, and walls after cleaning Built with two 120 V grounded outlets for accessory function, it is the ideal workplace companion Fan’s high-velocity air stream is ideal for drying, ventilating, exhausting, and cooling Built with a ten-foot cord with grounded plug Made with three powerful speeds, circuit breaker with reset button and has a changeable tilt Blower fan in Black and Yellow

LASKO 4924 Space-saving High Velocity Blower Fan $82.99 Type: Blower Fan Speed Setting: 3 speeds Feature: The Power of a 20" High Velocity Floor Fan in a Streamlined Body Ultra Quiet Motor for Stealth-Like Performance Easy-to-Use Top Mounted Controls 3 Powerful Speeds Directional Louvers for Precision Air Delivery Optional Oscillation for Broad Room Coverage Easy-Grip Carry handle Fully Assembled for Immediate Use The HVB High Velocity Blower Floor Fan has the power of 20� High Velocity Floor Fan in a slender, modernized body with more options. With three speeds, optional oscillation for wide-ranging coverage and directional louvers to provide precise air delivery where it is needed the most. With three speeds, optional oscillation for wide-ranging coverage and directional louvers to provide precise air delivery where it is needed the most. With its easy-grip handle you’ll have no problem...

2005-2009 Buick LaCrosse Blower Motor Delphi Buick Blower Motor BM10000 $48.6 delphi blower motor and fan 150.48 mm diameter oe direct fit features pre-balanced fan permanent magnet and permanently lubricated bearing built for long quiet life and dependable operation auto parts warehouse has extensive delphi blower motor catalogs.we are now offering free shipping on all delphi blower motor orders over $50.00. our secure delphi blower motor catalog is available every hour of everyday. shop with confidence for all your delphi blower motor needs. delphi blower motor are in stock and available today. save upto 60% off dealer price on your next delphi blower motor purchase. our online catalog contains a wide selection of the oem and aftermarket parts you need at unbeatable prices

1995-1998 Chevrolet Blazer Blower Motor Delphi Chevrolet Blower Motor BM10034 $39.44 delphi blower motor and fan oe direct fit features pre-balanced fan permanent magnet and permanently lubricated bearing built for long quiet life and dependable operation auto parts warehouse has extensive delphi blower motor catalogs.we are now offering free shipping on all delphi blower motor orders over $50.00. our secure delphi blower motor catalog is available every hour of everyday. shop with confidence for all your delphi blower motor needs. delphi blower motor are in stock and available today. save upto 60% off dealer price on your next delphi blower motor purchase. our online catalog contains a wide selection of the oem and aftermarket parts you need at unbeatable prices

2002 Cadillac Escalade Blower Motor Delphi Cadillac Blower Motor BM10039 $66.88 delphi blower motor and fan oe direct fit features pre-balanced fan permanent magnet and permanently lubricated bearing built for long quiet life and dependable operation auto parts warehouse has extensive delphi blower motor catalogs.we are now offering free shipping on all delphi blower motor orders over $50.00. our secure delphi blower motor catalog is available every hour of everyday. shop with confidence for all your delphi blower motor needs. delphi blower motor are in stock and available today. save upto 60% off dealer price on your next delphi blower motor purchase. our online catalog contains a wide selection of the oem and aftermarket parts you need at unbeatable prices

1999-2000 Cadillac Escalade Blower Motor Delphi Cadillac Blower Motor BM10030 $42.64 delphi blower motor and fan oe direct fit features pre-balanced fan permanent magnet and permanently lubricated bearing built for long quiet life and dependable operation auto parts warehouse has extensive delphi blower motor catalogs.we are now offering free shipping on all delphi blower motor orders over $50.00. our secure delphi blower motor catalog is available every hour of everyday. shop with confidence for all your delphi blower motor needs. delphi blower motor are in stock and available today. save upto 60% off dealer price on your next delphi blower motor purchase. our online catalog contains a wide selection of the oem and aftermarket parts you need at unbeatable prices

2003-2011 Cadillac Escalade Blower Motor Delphi Cadillac Blower Motor BM10022 $60.58 delphi blower motor and fan oe direct fit features pre-balanced fan permanent magnet and permanently lubricated bearing built for long quiet life and dependable operation auto parts warehouse has extensive delphi blower motor catalogs.we are now offering free shipping on all delphi blower motor orders over $50.00. our secure delphi blower motor catalog is available every hour of everyday. shop with confidence for all your delphi blower motor needs. delphi blower motor are in stock and available today. save upto 60% off dealer price on your next delphi blower motor purchase. our online catalog contains a wide selection of the oem and aftermarket parts you need at unbeatable prices

1997-2003 Chevrolet Malibu Blower Motor Delphi Chevrolet Blower Motor BM10028 $56.92 delphi blower motor and fan oe direct fit features pre-balanced fan permanent magnet and permanently lubricated bearing built for long quiet life and dependable operation auto parts warehouse has extensive delphi blower motor catalogs.we are now offering free shipping on all delphi blower motor orders over $50.00. our secure delphi blower motor catalog is available every hour of everyday. shop with confidence for all your delphi blower motor needs. delphi blower motor are in stock and available today. save upto 60% off dealer price on your next delphi blower motor purchase. our online catalog contains a wide selection of the oem and aftermarket parts you need at unbeatable prices

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