Industrial Plug Fans
High-performance plug fans for reliable recirculation, process airflow, and high-temperature applications.
AIRPRO // PRODUCTS
Durable Industrial Plug Fans for Recirculation & Process Airflow
AirPro’s industrial plug fans deliver dependable, efficient airflow for demanding process applications, including industrial ovens, dryers, curing systems, heat-processing equipment, air recirculation systems, and other high-temperature environments.
Plug fans are commonly used for recirculation and process airflow, helping move air through chambers, enclosures, and process systems to support consistent temperature distribution, process stability, and product quality. Their compact, chamber-mounted design makes them a practical choice when efficient use of space is critical.
AirPro can provide both standard and custom industrial plug fan solutions, with a new standardized plug fan line coming soon. This gives customers a faster path to reliable, repeatable plug fan solutions while preserving AirPro’s ability to engineer custom configurations for more complex applications.
Industrial Plug Fan Performance & Design
- Volume: up to 150,000 cfm
- Pressure: up to 20”wg (more if housing included)
- Temperature: up to 2000°F (belt drive); up to 450°F (direct drive)
- Static Efficiency: 74% (higher if housing included)
- Drive: belt and direct
AirPro designs and builds both standard and custom industrial fans with an unsurpassed level of quality and service. All of our products are also backed by our industry-leading 3-year warranty.
Plug Fan Types
Unhoused Plug Fans
Unhoused plug fans are a common configuration for process chambers, enclosures, ovens, dryers, and recirculation systems. Designed to mount directly into the system wall or enclosure, they provide efficient airflow without the need for a traditional fan housing.
- Common choice for recirculation and process airflow
- Mounts directly into the chamber, enclosure, or system wall
- Available with custom plug thicknesses
- Stainless steel and other materials available
Housed Plug Fans
Housed plug fans provide plug fan performance with added containment and ducting flexibility. This option may be used when the application requires a defined housing, controlled airflow path, or additional installation support outside of a direct chamber-mounted arrangement.
- Useful when added containment is required
- Supports ducted or semi-ducted process airflow
- Available in stainless steel and other materials
- Engineered to match system layout and performance needs
Belt-Drive Plug Fans
Belt-drive plug fans are a strong choice for high-temperature applications because the motor can be located outside the hottest portion of the airstream. AirPro can provide belt-drive plug fans for applications above 1300°F, depending on the system design and engineering review.
- High-temperature capability above 1300°F
- Motor can be positioned outside the hottest airstream
- Well-suited for demanding thermal process applications
- Flexible speed and drive configuration options
Direct-Drive Plug Fans
Direct-drive plug fans offer a compact, lower-maintenance design by eliminating belts and related drive components. AirPro direct-drive plug fans can support applications up to 450°F, making them a practical choice when temperature conditions allow.
- Direct-drive simplicity
- Temperature capability up to 450°F
- Compact configuration
- Reduced belt maintenance
Plug Fans with Integral Inlet Cone
AirPro can provide plug fans with an integral inlet cone to help secure the inlet cone directly to the fan. This option can simplify installation, improve fit, and support more consistent airflow into the fan wheel.
- Integral inlet cone available
- Helps secure the inlet cone to the fan
- Supports consistent inlet airflow
- Useful for chamber-mounted and process airflow applications
FEATURED FAN
Custom Plug Fan for High-Temp Industrial Oven Airflow
AirPro engineered a custom forward curved plug fan for an industrial process application requiring high-volume airflow in a demanding elevated-temperature environment.
Designed for a large process heating system, this fan was built to move significant air volume against moderate static pressure while supporting continuous operation at temperatures up to 800°F. The unit was supplied as a free-standing Arrangement 1PL plug fan with a belt-drive configuration, unitary base, and direct mounting to the process enclosure.
To support long-term reliability in the high-temperature airstream, AirPro incorporated an insulated 12-inch plug and a heat slinger to help protect the shaft, bearings, and drive components from excessive heat exposure. The forward curved wheel design provided the high-volume, low-pressure performance needed for the application, while the custom plug construction helped align the fan with the system’s installation requirements.
- Product Type: FCHS (forward curved, high-volume, single-width)
- Description: Size 545; Class 5; Arr. 1PL (belt drive plug style with unitary base); 200 HP; max design temperature 800ºF
- Performance: 105,000 ACFM @ 12” wg static pressure
- Features: Forward curved wheel design, insulated plug construction, belt drive, free-standing Arrangement 1PL configuration, unitary base, heat slinger for shaft cooling, and custom engineering for high-temperature oven airflow.
Applications
Common Plug Fan Applications
Drying & Curing Systems
Well-suited for drying and curing applications that require reliable recirculated airflow, durable construction, and stable process conditions.
Heat Treating & Thermal Processing
Built for high-temperature process environments that require durable construction, reliable recirculation, and consistent airflow through the heated chamber.
Food Processing Ovens
Available in stainless steel and other application-specific materials for oven systems used in food processing, baking, drying, and related production environments.
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