Model HDBC: Backward Curved Fan
Cincinnati Fan manufactures 18 sizes of the Model HDBC Backward Curved Fan in AMCA Class V construction. The Model HDBC is an excellent choice for efficient delivery of high air volumes.
All models are available with one wheel design and in multiple widths from 50% to 100%, to deliver the exact performance you need with a direct driven fan. Four belt driven arrangements are also available. All aluminum or stainless steel construction is available.
This fan is available in AMCA A, B, or C spark resistant construction.
PERFORMANCE RANGE:
• Capacities up to 270,000 CFM and 34″ SPWG
• Standard construction, air stream temperatures up to 200°F (93°C)
• Optional high-temperature construction, temperatures up to 750°F (398°C)
FOR HIGHER CAPACITIES:
Airflow: See Daniels Fans Model BI Industrial Fan
Pressure: See Model HPBC, Model RBE, and Model RTE
Temperature: See Daniels Fans Model BIF High Temp Fan
- FEATURES & BENEFITS
- ARRANGEMENTS
- OPTIONS
- APPLICATIONS
- RESOURCES
Features
- All models available with housing and wheel widths from 50% to 100%, in 5% increments, to deliver the performance you need with a direct driven blower.
- Continuous welded housings, instead of lock seams, eliminate air leakage.
- Heavy gauge steel bases, with internal bracing, maximize rigidity and promote long equipment life.
- Blower housings can be rotated in 45° increments, on sizes 300 and smaller, to provide increased configuration flexibility in the field.
- Removable inlet & drive side plates allow for removal of blower wheel or motor, or shaft and bearings on belt driven models, without disconnecting inlet or discharge connections.
- Inlet side support assures a minimal vibration housing.
- All fans receive a mechanical run test to ensure proper balance and alignment before shipping.
- Belt driven models include heavy duty, grease lubricated, self-aligning, cast iron, and pillow block bearings selected for optimal performance.
- Fan shaft on belt driven models is turned, ground, and polished and receives a high-quality rust preventative coating before shipment.
- Arrangement 8 units come standard with shaft/coupling guards
- Arrangement 9 and 9CB units come standard with belt guards.
- Arrangement 10 units come with weather cover.
- All models are also available in aluminum or all stainless steel construction.
Benefits
- Multiple Wheel Selections: Each size and class are available in multiple widths from 50% to 100%, in 5% increments, to deliver the exact performance you need with a direct driven blower. Complete design flexibility.
- Rugged Construction: Housings are heavy gauge steel and are continuously welded to prevent leakage. Fan bases are 7 and 10-gauge steel with internal bracing to prevent pulsation at all conditions. Less field problems.
- Rotatable Housings: Most models have housings that can be rotated in 45° increments in the field. Allows for field conversion without replacing the blower.
- Ease of Maintenance: Replacing a wheel, motor, or shaft and bearings on belt driven models, is easily accomplished without disturbing the inlet and/or discharge connections. Minimizes extended downtime.
- Quality Components: All belt driven models have self-aligning, cast iron, grease lubricated, pillow block bearings sized for a minimum 150,000 hours average life. All fan shafts are turned, ground, and polished and are coated with a high-quality rust preventative before shipment. Long dependable service.
![Arrangement 1 - Belt Drive](/wp-content/uploads/2024/03/Arrangement-1.png)
Arrangement 1 – Belt Drive
![Arrangement 4 - Direct Drive](/wp-content/uploads/2024/03/Arrangement-4-3.png)
Arrangement 4 – Direct Drive
![Arrangement 4HM - Direct Drive](/wp-content/uploads/2024/03/Arrangement-4HM-1.png)
Arrangement 4HM – Direct Drive
![Arrangement 8 - Direct Drive](/wp-content/uploads/2024/03/Arrangement-8.png)
Arrangement 8 – Direct Drive
![Arrangement 9 - Belt Drive](/wp-content/uploads/2024/03/Arrangement-9-3.png)
Arrangement 9 – Belt Drive
![Arrangement 9CB - Belt Drive](/wp-content/uploads/2024/03/Arrangement-9CB.png)
Arrangement 9CB – Belt Drive
![Arrangement 10 - Belt Drive](/wp-content/uploads/2024/03/Arrangement-10.png)
Arrangement 10 – Belt Drive
![Shaft Seal](/wp-content/uploads/2024/03/Shaft-Seal-1.png)
Shaft Seal
![Outlet Damper](/wp-content/uploads/2024/03/Outlet-Damper-1.png)
Outlet Damper
![Inlet Vane Control](/wp-content/uploads/2024/03/Inlet-Vane-Control.png)
Inlet Vane Control
![Inspection Door](/wp-content/uploads/2024/03/Inspection-Door-2.png)
Inspection Door
![Shaft and/or Heat Slinger Guard](/wp-content/uploads/2024/03/Shaft-and_or-Heat-Slinger-Guard.png)
Shaft and/or Heat Slinger Guard
![Inlet & Outlet Guards](/wp-content/uploads/2024/03/Inlet-and-Outlet-Guards.png)
Inlet & Outlet Guards
![Drain Connection](/wp-content/uploads/2024/03/Drain-Connection-1.png)
Drain Connection
![Inlet & Outlet Flanges](/wp-content/uploads/2024/03/Inlet-and-Outlet-Flange.png)
Inlet & Outlet Flanges
- Material conveying
- Cooling
- General ventilation
- Dust collection
- Combustion air
- Oven and drying systems
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