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A blower fan is a device that efficiently and effectively enhances the flow of air within a workspace by making use of an impeller, airfoils (blades), and an electric motor. The main use of blower fans is as a permanent addition that increases airflow in a workspace and eliminates dirt, dust, and particulate matter. Read More…

Blower Fans Blower fans are air blowers that are used to move atmosphere. In industrial, commercial and consumer settings, there are many reasons for which air movement can be necessary. Any home or place of business needs ventilation. In industrial settings, the need for ventilation takes on extra dimensions of importance because of the risks to workplace safety and worker comfort that inadequate ventilation can pose.
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Leading Manufacturers

Syracuse, NY  |  888-293-7434

Since 1991, National Turbine Corporation has been a blower manufacturer, bringing you quality multi stage blowers for use in industrial applications.

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National Turbine Corporation $$$

Rhinelander, WI  |  715-365-3267

#1 Most Reliable Fan Manufacturer. Thousands of customers depend on AirPro fans to keep their operations going, and that's why we build the highest quality fans, prioritize on-time delivery, and offer a 3-year warranty on all products! Founded in 2002, AirPro is privately held and 100% Employee-Owned. With headquarters and manufacturing facilities in Rhinelander, Wisconsin, we offer centrifugal fans for process air applications in North America and around the world.

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AirPro Fan & Blower Company $$$

Willowbrook, IL  |  800-208-7918

Since 1889, The New York Blower Company (nyb) has been a turn-key provider of catalog and custom fans, blowers and ventilation systems. We provide the design, manufacture, installation, maintenance, repair and rebuild of nyb and competitor products. We are constantly expanding, with a worldwide presence of over 200 representatives, and the opening of our fifth manufacturing facility in the US in 2022. Visit us at www.nyb.com/findmysolution/ to request more information today

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The New York Blower Company $$$

Carpentersville, IL  |  888-639-3267

At Revcor we manufacture high-quality air moving products such as, centrifugal blowers, axial fans, and crossflow fans. For over 60 years we have been providing exceptional customer service and we continue to improve our business to meet the needs of our customers.

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Revcor $$$

Schofield, WI  |  715-359-6171

Greenheck Fan is a leading manufacturer of high-quality industrial blowers, centrifugal blowers, pneumatic-conveying and multistage blowers, industrial fans and exhaust fans. Greenheck's equipment is used in a wide variety of commercial, institutional and industrial applications.

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Greenheck Fan Corporation $$$

Montville, NJ  |  973-257-8900

Single & dual inlet blowers, compact axial fans and backward curved motorized impellers make up our OEM blower & fan line. Our innovative industrial ventilation products are manufactured in modern ISO 9002 facilities. Immediate shipment available from large inventories in Jacksonville & Toronto.

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Soler & Palau $$$
placeholder image National Turbine Corporation AirPro Fan & Blower Company The New York Blower Company Revcor Greenheck Fan Corporation Soler & Palau

What is a Blower Fan?

A blower fan is a device that efficiently and effectively enhances the flow of air within a workspace by making use of an impeller, airfoils (blades), and an electric motor. The main use of blower fans is as a permanent addition that increases airflow in a workspace and eliminates dirt, dust, and particulate matter. Blower fans are highly designed. Typically, they employ an electric motor to produce very high pressure in order to move a larger volume of air more quickly.

Blower Fan

Blower fans can be categorized as axial, centrifugal, or positive displacement. The centrifugal blower fans consist of a gear system. Centrifugal blowers can also have multiple or single-stage construction. On the other hand, axial blower fans are much simpler and they consist of blades in a central shaft. Lastly, positive blower fans consist of a rotor geometry.

How Blower Fans are Made

Blower fans are required to be both durable and provide endurance through their function. They must create a great amount of force and pressure and, as a result, there is a need to manufacture them from sturdy and high-strength materials. They are made after considering the following factors provided below:

Flow Rate

The flow rate, which is a measure of airflow, is the first thing to note before determining the kind of blower fan required. Blower fans are capable of handling the same amount of gas and air despite their different densities. However, there is a need to understand the speeds required to carry these materials through the line.

Pressure Rating

The resistance to airflow is known as static pressure. It is usually caused by the air moving through ducting filters, hoses or pipes. Temperature and altitude have a direct effect on pressure and can affect blower fan performance. As a result, this issue has to be considered since it plays an important role in determining the quality of gas and air movement provided by blower fans.

Pressure Blower

Motor

A blower fan motor can be categorized as being either “belt drive” or “direct drive” motors based on how their fan and motor interact; each type has their advantages based on various factors. The environment where the blower is to function has to be examined because there are a variety of available motors for different conditions. When not exposed, they can be closed completely. Blower fans can make use of several motors such as induction, brushed, switched reluctance, and brushless. However, induction motors are mostly preferred since they generate greater power.

Impeller and Fan Blades

An impeller is the central part of any blower fan. Its rotation pulls air into the blower and increases its velocity; it also has the ability to change the direction of airflow. Fan blades are attached to impellers in a motor. Both the impeller selected and the number of blades used may greatly affect the flow rate.

Impeller

Mount or Port Design

Blower fans may be configured using either a mount or a port design. In a mount design blower fan, the fan is mounted directly to an outlet using a flange. In a port-design blower fan, the blower is connected to an existing tube, duct, or vent.

Bearings

Bearings are an essential element for blower fans. They are mechanical assemblies that essentially allow the blades to spin inside a blower fan. They need intense monitoring and examination. Higher velocities are likely to cause bearing problems. Careful selection of bearings reduces the time spent replacing the bearings of a blower fan.

Bearings

Types of Blower Fans

The types of blower fans include:

Positive Displacement Industrial Blower

Using two parallel rotary pistons, a positive displacement blower moves gas or air into the stage from the top input port. These are fixed inside a structure known as a conveying chamber. The pistons allow gas or air to be transported from the top to the bottom by rotating in opposing directions. PD blowers and rotary air blowers are other names for positive displacement blowers.

Positive displacement blowers can be found in two types:

Lobe Positive Displacement Blower

From the input to the discharge point, a positive displacement lobe blower transports a volume of gas that is essentially constant. It adheres to the external compression, or isochoric compression, concept.

To accomplish the necessary pressure increase, the medium (gas or air) is driven from an atmospheric state into a system with a certain resistance (back pressure). Lobe positive displacement blowers are not regarded as compressors because of this. The design of the machine's shell and spinning components controls how much gas it can manage.

Screw Positive Displacement Blower

The rotors of a screw positive displacement blower rotate in opposing directions while being precisely timed to preserve alignment. A series of working chambers are created between the rotors and the casing wall when the rotors mesh.

Between the rotors, the casing (radially), and the cover, the gas is suctioned from the intake side (axially). The air or gas is subsequently compressed while being transferred to the compression side (discharge). Here, the working chamber contracts. Internal compression produces a constant, uninterrupted flow of air. This reduces vibration and maintenance to extend the blower's lifespan.

Centrifugal Blower

Centrifugal blower fans consist of a gear system. Centrifugal blowers can also have multiple or single-stage construction. Air enters through rotating impellers and its volume and velocity are increased until the blades force it out.

Regenerative Blower

Regenerative blower fans produce a continuous airflow that has low pressure. Regenerative blowers, also known as ring compressors, use impeller blades to draw air into the input port of the blower. The air is then accelerated outward and forward by the blower. The blower can be single or two stages. However, the two-stage type forms a higher pressure. These blowers provide large amounts of air to a particular spot using a pipe or hose. Compared to positive displacement blowers, they operate at lower pressures or vacuum levels, which lessens noise and vibration. These blowers are put into systems to supply vacuum and pressure for pneumatic conveying, aeration in fish farms and wastewater treatment facilities, as well as in applications which monitor air quality.

Axial Blower

An axial blower is characterized by the creation of negative and positive pressure around the blades in order to create airflow. The blades are placed vertically and tilted for changes in atmospheric pressure. The number of blades employed largely determines its performance.

Axial Blower

There are other types of blower fans that are also used in various industrial sectors such as the vapor recovery industrial blower, helical screw industrial blower, and the high-speed industrial blower.

Applications

Blower fans are used in many industries and they have been of great importance. Their role is widely seen in the following:

  • Fume extraction
  • Dust removal
  • Air handling
  • Material handling
  • Humidity maintenance
  • Exhaust control
  • Temperature control
Paint Spray Booth Blower Fan

Benefits

Blower fans provide a lot of advantages. They are a reliable way to lower operating costs. They reduce humidity levels so employees don’t feel sluggish. By reducing humidity levels, electronic devices are subjected less to corrosive influences. Additionally, they provide protection for both certain steps in production processes (painting) and, often, the items being produced themselves (food production). Most notably, they create healthier working conditions by collecting dust and other harmful particles so staff spend less time out, and companies pay less out, due to the removal of these harmful respiratory irritants.

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Blower Power Pages

Centrifugal Blowers

Centrifugal Blowers

A centrifugal blower is an air moving device that uses an impeller to pull air into a tube like structure and release it at a 90o angle. The impeller is a set of blades inside the blower that rotates at a high rate to pressurize and move air...

Industrial Blowers

Industrial Blowers

An industrial blower is a device that enhances the air flow in a workspace effectively and efficiently using an electric motor, impeller, and airfoils. The purpose and function of industrial blowers is to be a permanent addition to a workspace to increase airflow and...

Air Compressors

Air Compressors

An industrial air compressor is a mechanical device used to generate pressure in compressible fluids or gases. The most common being air. A variety of compressors are used in the industry to provide functions such as...

Air Filters

Air Filters

Air filters are devices used to remove airborne particles, pollutants, and microorganisms hazardous to health and the ecosystem. In industrial facilities, air filters preserve the quality of products and materials and protect critical equipment from damage...

HEPA Air Filters

HEPA Air Filters

A HEPA filter is a high efficiency pleated air filter capable of capturing extremely small particulate matter down to particles that are the size of a micron (µ), or a micrometer, which is 1/1000th of a meter...

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