Low- & High-Speed Centrifugal Fans
The BROCK® Aeration System product line offers both low- and high-speed Centrifugal Aeration Fans to meet your operation’s needs.
Totally-Enclosed, Fan-Cooled Motors
Totally-enclosed, fan-cooled (TEFC) motors are standard for all Brock GUARDIAN® Series centrifugal fans.
Corrosion-Resistant Screen Guard
A 10-mil PVC coating on the screen guard provides superior corrosion resistance and attractive appearance.
Durable Fan Housing
All Brock GUARDIAN® Series Centrifugal Fans have a reinforced, 12-gauge, galvanized steel housing for durability and long fan life.
Adjustable Leveling Feet
Brock’s Centrifugal Fan models have adjustable feet to assist leveling the unit on the fan platform.
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Dynamically Balanced Centrifugal Wheel
A dynamically balanced, seam-welded steel centrifugal wheel features modern air foil blade design to help maximize air performance.
Innovative Air Inlet Orifice
GUARDIAN® Series Centrifugal Fans use an innovative design to promote better air flow into the centrifugal wheel to enhance fan performance.
Diverter & Baffle
A diverter and baffle help to redirect air spilling from the centrifugal wheel to encourage smooth, efficient fan operation.
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The BROCK® Aeration System’s selection of components includes BROCK® Fan Transitions and related options for excellent aeration performance with reliably smooth operation. Brock’s family of fan transitions offers:
- A selection of durable, galvanized steel wrap-around and bolted transitions designed to optimize airflow into the grain while minimizing pressure losses.
- Exclusive patented back-draft damper options that automatically prevent under-floor pressure from flowing air back through a fan that is not running. Dampers are recommended for multiple fan installations.
- Extensions for supporting bin floors in full-floor bins are standard and help to minimize airflow obstructions into the aeration plenum.
A standardized control box is used with all Brock GUARDIAN® Series fans and heaters.
- Controls are specifically matched to each fan or heater unit.
- Control boxes are made of durable polycarbonate and include a hinged translucent cover.
- The control housing is weather- and dust-proof and rodent-resistant.
- Standard components are used for safe and reliable motor control.
- Adjustable overload protection is included.
- Brock heater controls use an industrial-design ignition transformer.
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Airflow Ratings (CFM at Static Pressure in Inches)
Model | HP | 0.0 | 1.0 | 2.0 | 3.0 | 4.0 | 5.0 | 6.0 | 7.0 | 8.0 | 9.0 | 10.0 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
LC22-3 | 3 | 5,564 | 5,203 | 4,742 | 4,183 | 3,526 | 2,769 | |||||
LC22-5 | 5 | 9,095 | 8,504 | 7,752 | 6,838 | 5,763 | 4,526 | |||||
LC24-7 | 7.5 | 11,745 | 11,112 | 10,377 | 9,542 | 8,606 | 7,569 | 6,431 | ||||
LC24-10 | 10 | 14,445 | 13,666 | 12,763 | 11,736 | 10,584 | 9,309 | 7,909 | ||||
LC27-10 | 10 | 13,475 | 12,803 | 12,047 | 11,207 | 10,283 | 9,275 | 8,183 | 7,007 | |||
LC27-15 | 15 | 19,250 | 18,290 | 17,210 | 16,010 | 14,690 | 13,250 | 11,690 | 10,010 | |||
LC27-20 | 20 | 20,792 | 19,989 | 19,094 | 18,105 | 17,019 | 15,834 | 14,549 | 13,161 | |||
LC30-25 | 25 | 24,857 | 24,171 | 23,352 | 22,400 | 21,314 | 20,095 | 18,743 | 17,257 | 15,638 | 13,886 | |
LC30-30 | 30 | 26,100 | 25,380 | 24,520 | 23,520 | 22,380 | 21,100 | 19,680 | 18,120 | 16,420 | 14,580 | |
LC33-40 | 40 | 34,080 | 32,801 | 31,508 | 30,198 | 28,872 | 27,528 | 26,165 | 24,781 | 23,376 | 21,948 | 20,496 |
LC33-50 | 50 | 37,000 | 35,887 | 34,746 | 33,572 | 32,361 | 31,108 | 29,808 | 28,458 | 27,053 | 25,589 | 24,060 |
Notes
Airflow ratings have been determined by an independent fan testing facility in accordance with AMCA Standard 210. |
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