Brock Low Speed Centrifugal Fans




Built for Durability and Long Service Life

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.

Well-Balanced Design for Highly Efficient Operation

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.

Fan Transitions to Help Optimize Grain Airflows

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.
Reliable Control Box

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.


Extra Information