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
20, 15, 10, 7.5, & 5 HP available.
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 heavy fabricated hub into which the shaft is shrink fitted.
Rotor blades are set at a optimum depth for Oxygen Transfer and Mixing
Motor operated at 90% of full motor load at optimum setting
TEFC inverter duty
NEMA premium duty
60hz or 50hz as required
AGMA Class III or Class II gear reducer, depending on model.
Special Aramid, double-grooved, banded belt design (since 1987).
Direct drive designs.
7. Materials of Construction
304 or 316 stainless steel or carbon steel hot dipped to ASTM specification A123/A after fabrication
8. Main Frame
Frame connections and service platforms are welded for greater strength
Finite structural analysis provided including live, dead and wind loads
Maintenance free rotor bearings
UHMW bearing with bronze wear sleeve and carbon wear indicator
Years of service with out maintenance
No catastrophic bearing failures to cause collateral damage to the shaft or rotor
10. Floatation Devices
304 or 316 stainless steel or 5052 marine quality aluminum available
Internal baffles for strength
Internal foam to prevent sinking from accidental damage
Attaches floatation devices to main frame
Changes operating depth of rotor blades
Levels aerator to anchoring system
Allows for adjustments in water depth and amperage draw
Fit virtually any ditch or basin installation without expensive construction modifications
Attach floatation devices
Anchor in place
Set operating depth
Connect electrical controls
Control panel assemblies, disconnects and junction boxes
SMC Soft Starts
Control Panel Sun Shade
14. Available Tests
Certified A.S.C.E. Oxygen Transfer Tests, including largest unit
Certified Finite Structural Analysis Test, including live, dead and wind loads
Certified Rotor Vibration Test