Industrial Forward Curved Fans & Blowers
Engineered for performance in high-temperature exhaust applications.
AIRPRO // PRODUCTS
Centrifugal Forward Curved Fans for Industrial Applications
Industrial Forward Curved Fan Overview
Also known as squirrel cage fans & blowers
AirPro’s forward curved centrifugal fans, also known as squirrel cage fans or blowers, are engineered for high-volume airflow in low static pressure applications. They are commonly used in industrial furnaces, ovens, and other heat processing equipment where sustained temperature exposure, reliable performance, and long service life are critical.
The forward curved wheel uses many short blades that curve in the direction of rotation. This design supports high airflow capacity in a compact footprint and is often supplied in a plug configuration that mounts directly to an enclosure.
For many heat processing applications, the fan wheel can be inserted directly into the enclosure without ductwork. Motors, bearings, and drive components are positioned outside the airstream to reduce heat exposure and simplify inspection and maintenance.
AirPro can tailor wheel design and materials of construction to match your operating temperature, process conditions, and airflow requirements.
Industrial Forward Curved Fan Performance & Design
- Volume: up to 500,000 cfm
- Pressure: up to 10” wg
- Temperature: up to 1800°F
- Static Efficiency: up to 60%
- Configuration: with/without housing and inlet cone
- 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.
Forward Curved Fan & Blower Types
FCHS
Forward-Curved, High-Volume, Single-Width
Engineered for high-temperature, clean airstream applications, delivering reliable performance with static efficiency up to 60%. It has a forward curved multi-blade design with flat shroud and backplate, and stiffening ring in the middle of the blades. Most commonly belt-driven configurations to support slower speeds.
FEATURED FAN
Custom Forward Curved Plug Fan for Industrial Oven Exhaust
AirPro designed a custom forward curved plug fan for a high-temperature industrial oven exhaust application. Forward curved fans are ideal for moving large volumes of air at low static pressures, making them well-suited for process heating and oven exhaust systems.
This unit was engineered as a free-standing Arrangement 1PL plug fan on a unitary base and mounted directly to the oven enclosure. Key design features include an insulated 12-inch plug, belt drive, and heat slinger to protect bearings and drive components in continuous high-temperature operation.
- 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; high-volume, low-pressure airflow capability; insulated plug construction; belt drive; unitary base; heat slinger for shaft cooling; free-standing Arrangement 1PL configuration; engineered for industrial oven exhaust and process heating applications.
How the Forward Curved Fan Works
Squirrel Cage Blower Wheel Overview
Forward curved fans use a centrifugal design with many small, closely spaced blades that curve in the direction of rotation. As the wheel spins, air is drawn into the center of the fan and picked up by the forward curved blades, which push it outward into the housing and then into the airstream. This design is well suited for moving high volumes of air at low static pressures.
Because they deliver consistent airflow in compact systems, forward curved fans are often used in applications like furnaces, ovens, and other convection heating equipment where even air circulation and uniform temperature are important.
Applications
Common Industrial Forward Curved Fan Applications
High Temperature
Forward-curved fans handle high-temperature airflows with ease, offering reliable, high-volume performance in compact, plug-style configurations. Ideal for circulating air in enclosed, high-heat environments.
Process Heating
Forward-curved fans provide high airflow at low pressure, making them ideal for circulating heated air in ovens, dryers, and heat chambers. Their compact, quiet design ensures efficient, uniform heat transfer.
Boilers & Burners
Boilers and burners rely on steady airflow for efficient combustion and heat transfer. Forward curved fans are a strong fit because they move high volumes of air at low static pressure in compact systems.
