S3 Air Systems offers the widest range of aeration fans and fan options on the market. Our line-up of fans are all crafted with a durable steel body. The steel inlets and screens are finished with our signature powder coat finish. Fan components have been engineered to be extremely lightweight and durable for quicker run-up time and lower amp draw. All of our fan rotor assemblies are crafted from aluminum and dynamically balanced for ultra-smooth, efficient performance.
Products
Aeration fans
More air, less maintenance
Larger starter boxes enable much easier electrical hook-up, all are bin-sense controller-ready, CSA approved, and come standard with the ultra-fast protection offered by S3’s SWOP warranty program. S3 Air System’s commitment to high volumes of inventory ensure lightning-fast order fulfillment and warranty response times.


UFO Aeration
The Future of Grain Aeration
An alternative universe of airflow performance.
- Over 4 times more airflow than traditional systems
- Durable components weigh less than 6 lbs. each
- Add or remove stages for optimum aeration flexibility
- Excellent for all grain types
- Easily fits through 18″ circular bin opening
- Bins less than 30′ in diameter
- Bins less than 30′ in wall height
- Hopper bottom bins

Inline centrifugal aeration fan |
Airflow (CFM) @ 3450 RPM | ||||
Static Pressure (inches) | 3 HP | 5 HP | 7 ½ HP | 10 HP | 15 HP |
4 | 3030 | 4790 | 6345 | 7410 | 7900 |
6 | 2250 | 4150 | 5550 | 6930 | 7350 |
8 | 3180 | 4425 | 6210 | 6700 | |
10 | 2280 | 5120 | 5800 | ||
12 | 3700 | 4200 |

Full centrifugal aeration fan |
Airflow (CFM) @ 3450 RPM | ||||
Static Pressure (inches) | 3 HP | 5 HP | 7 ½ HP | 10 HP | |
4 | 3060 | 4100 | 5325 | 6400 | |
6 | 2690 | 3520 | 4820 | 5800 | |
8 | 2170 | 3060 | 4280 | 5000 | |
10 | 1300 | 2470 | 3510 | 4200 | |
12 | 1760 | 2300 | 3600 |

Low speed centrifugal aeration fan |
Airflow (CFM) @ 1750 RPM | ||||
Static Pressure (inches) | 10 HP | 15 HP | 20 HP | 25 HP | 30 HP |
1 | 13500 | 17000 | 20750 | 23500 | 25100 |
2 | 12800 | 16200 | 20000 | 22500 | 24300 |
3 | 11850 | 15250 | 19000 | 21350 | 23300 |
4 | 10700 | 14400 | 18100 | 20250 | 22250 |
5 | 9400 | 13400 | 17000 | 19100 | 21000 |
6 | 8200 | 12100 | 15500 | 18000 | 19750 |
7 | 7200 | 10500 | 14000 | 17000 | 18600 |


Turbo aeration fan |
Airflow (CFM) @ 3450 RPM | ||||
Static Pressure (inches) | 3 HP | 5 HP | 7 ½ HP | ||
3 | 3850 | ||||
4 | 3700 | 6000 | |||
5 | 3250 | 4500 | 5700 | ||
6 | 2800 | 4250 | 5400 | ||
7 | 2400 | 3600 | 5100 | ||
8 | 1250 | 3300 | 4700 | ||
9 | 2200 | 4100 | |||
10 |
3250 |

High speed centrifugal fans |
Airflow (CFM) @ 3550 RPM | ||||
Static Pressure (inches) | 20 HP | 25 HP | 30 HP | 40 HP | |
2 | 12024 | 15240 | |||
4 | 8261 | 9546 | 11529 | 14757 | |
6 | 7870 | 9059 | 11044 | 14245 | |
9 | 7235 | 8465 | 10320 | 13414 | |
12 | 6538 | 7939 | 9580 | 12495 | |
15 | 5773 | 7183 | 8797 | 11465 | |
18 | 4913 | 6378 | 7936 | 10286 | |
22 | 3395 | 5293 | 6545 | 8341 | |
26 | 3491 | 4233 |


Booster fan |
Airflow (CFM) @ 3450 RPM | ||
Static Pressure (inches) | 3 HP | 5 HP |
7 1/2 HP |
4 | 3200 | 5050 | 6700 |
6 | 2500 | 4550 | 6100 |
8 | 1850 | 4325 | 5850 |
10 | 1150 | 4050 | 4700 |
12 | 3400 | 4200 | |
14 | 3025 | 3650 | |
16 | 2650 | 3150 | |
18 | 2400 | ||
20 |
1570 |

Rover
Aeration Fan Cart
3 Bins, One Fan? No Problem.
The Rover gives you flexibility to move your aeration fan to where you need it the most. Hook up to an ATV, a garden tractor, or simply move by hand.
Load capacity of 350 lbs.
Powder-coated steel construction.
Simple assembly.

Portal
Your grain on tap
No more messes, rodents or friction fights.
Side unloading bins isn’t ideal for every circumstance, the Portal was designed to remove a single load from a bin easily without a mess by eliminating the need to insert an auger into the bin.
Easily adaptable for most bin types
Flow can accommodate 12″ auger capacity
Blowers
Customized, high-efficiency blower solutions
Working primarily with OEM’s, S3 Air Systems provides complete testing solutions for establishing design specifications, as well as complete manufacturing and assembly solutions (including hydraulic motor) in cast aluminum, mild steel, or low-density polyethylene.
Our wide range of blowers, configurations and experience, make the customization process for design specifications and fit-up requirements fast and easy. Our engineers are ready to help you evaluate and improve your existing pneumatic system in CFM, air-flow and hydraulic power, or for the design and manufacturing of complete systems.
