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S&N Airoflo Inc. has combined a unique blade shape and aggressive blade configuration with a floating platform while utilizing a drive assembly that has been continuously improved since 1989. The result of these combinations has created a piece of equipment that is efficient and provides predictable wastewater treatment.

The equipment design calls for less maintenance based on a simple preventative maintenance program which requires inspections not repairs. S&N Airoflo's horizontal brush rotors are easy to install and are contractor friendly. S&N Airoflo equipment can be bank installed for lagoon applications. S&N Airoflo has also developed EZ-Access systems for oxidation ditch applications.

1. Continuous, Corrosive-Duty Horizontal Floating Brush Rotor
2. 20, 15, 10, 7.5, & 5 HP available. (click for photo details)
3. Rotor

Unique blade design and specific frequency of the S&N spiral provides a smooth & efficient transfer of energy from the rotor to the water

Modified C shaped blade forms a deep cup to increase pumping capacity & oxygen transfer

All blades are welded to torque tube

Both tail & drive shaft assemblies utilize a "bolt-on" design which entails the shaft being welded to a machined flanged plate.

Hot-dipped galvanized & 304L stainless steel available

4. Operation

Rotor blades are set at a optimum depth for Oxygen Transfer and Mixing

Motor operated at less than 90% of full motor load at optimum setting

5. Motor

230/460, 3 phase, 60 cycle, nominal 1800 rpm (single phase also available)

Totally enclosed fan cooled

6. Gear Reducer & Drive Assembly

Falk AGMA Class III gear reducer

3-year factory warranty - including bearings and seals

Lifetime shaft removal guarantee

7. Motor & Gear Reducer Cover

Covers motor and gear reducer to prevent weather and water contamination

8. Special Aramid Belt

Double-grooved, banded belt connects motor and gear reducer

Does not stretch

Provides for a total "Elastomer" drive assembly

9. Main Frame

All frame connections are welded for strength

Hot-dipped galvanized & 304L stainless steel

10. Bearing Assembly (click for photo details)

Maintenance free rotor bearings

UHMW bearing with bronze wear sleeve and carbon wear indicator

Unbelievable wear characteristics

No catastrophic failures

11. Floatation Devices

304L stainless steel and aluminum available

12. Cradle Frames & Adjusting Linkage

Attaches floatation devices to main frame

Changes operating depth of rotor blades

Levels aerator to anchoring system

Allows for adjustments in water depth and amp draw

Cradle frames - hot-dipped galvanized and 304L stainless steel available

Adjusting linkage - 304L stainless steel rods with brass adjusting nuts

13. Easy Installation

S&N Airoflo units are easily assembled

Attach floatation devices

Anchor in place

Set operating depth

Connect electrical controls

S&N Airoflo now offers extended vertical shields on its floating brush aerators, specifically designed to contain the rotor splash, and to limit ice buildup on the ends of the frame, float tanks and motor and gear housing cover. This allows 24-7 operation of the aerator equipment even in extreme northern climates.

We have also developed prototype covers for our aerators that will eliminate aerosol mist dispersal and also retain heat, and these covers will be in production very soon. View more detailed video clips of the cold weather shields and aerator cover under our movie gallery section, or contact us today for more detailed information about these features.

EZ-Access features

S&N Airoflo also offers a variety of "EZ-ACCESS" features, including access bridges and walkways, extended work platforms, bolt-on steps, quick hitches for fast and easy unit retrieval, and safety harness attachment posts. These features are available in any combination on new aerators, and can also be retrofitted to existing S&N aerators. Contact us for additional information.