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  • Windmill Lake Aerators
  • Windmill Lake Aerators

Windmill Aerators

Simple aeration powered by the wind

Fishkit is pleased to be appointed as Koenders UK agent. They are the world’s leading supplier of windmill aeration systems, being voted number 1 in North America and Canada. These windmills will provide constant air in wind speeds as low as 2mph, once again negating the need for available mains power. They help reduce algae, add oxygen, circulate the water and maintain an ice free area in the winter.

Koenders windmills use a strong, cross brace reinforcement design. Large-surface blades have been engineered for efficient operation in varying wind speeds, a large diaphragm allows the windmill to save energy while still producing maximum air volume. A large tail provides maximum control and ensures efficient overall operation; a rigid tail arm further ensures wind control. A top-mounted compressor is connected through a pivot tube. Koenders Windmills can be located approximately 1,000 feet from the water source.

With poly pipe from the windmill to the waters edge and then a weighted airline to the diffuser. The diffuser is equipped with an internal check valve to eliminate water from entering the hose when the turbine is not operating in low-wind conditions.

We can supply single diaphragm versions in 12’ and 16’ which are suitable for water bodies up to 1 acre and double diaphragm version with a 16’ tower height with two diffusers for an area of up to 2 acres.

They all come in kit form for easy assemble along with many instructional videos on the Koenders website.



Windmill Specifications

Capacity (single diaphragm)Up to 1.5 CFM (cubic feet of air per min.)
Double diaphragmUp to 3.00 CFM
Turbine TypeUpwind
Rotor Diameter65"
Swept Area23.05 sq. ft.
Blade DesignProprietary
TransmissionDirect drive
Stroke0.5"
Overspeed ProtectionAutomatic
Height12' or 16’

Watch the video

Koenders Water Solutions Demo

Watch the video

Koenders Windmill Assembly Video