The Becker Windmill - Specifications & Technical Info

Detailed data and information about our famous aeration windmill

The Basics

The Becker Windmill requires very low maintenance. The whole system was designed for ease of assembly and minimal maintenance.

Main points:

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Manufactured in the USA

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5 year limited warranty

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30 day money back guarantee!

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Powder Coating is available in many colors and combinations, including John Deere yellow & green and Ohio State colors, and many more

Windmill blades

Blades

Our windmill features a large 72″ Diameter fan Wheel. The twelve blades are fully tapered and get wider at the outer tips as well as change pitch. This allows the blade assembly to start turning at low wind speeds and also develop high power in strong winds.
Windmill Hub

Windmill Hub

The welded steel hub is completely assembled. The blades can easily be attached to the hub. The hub is securely attached to the shaft with 2 set screws tightened down to flat spots on the shaft. A bolt and washer in the end of the shaft prevent the fan wheel from ever coming off.
Over speed protection

Over speed protection

The tail design keeps the windmill facing directly into the wind until wind speeds reach 30 mph. At that time, the tail forces the fan wheel to turn 12 to 15 degrees away from the direct wind so that it cannot over speed. And it all happens automatically.
Towers

Towers

The tower design is very similar to the old style water pump windmills. It is made of galvanized steel angles and “x” bracing. It has 4 legs. This means it covers more square feet of area than a tower with 3 legs and also has 4 anchor stakes instead of only 3. This all adds up to more stability.

Available in 12′, 16′, 20′ and 24′ heights.

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Crankshaft & Bearings

The crankshaft is made of high strength 1045 TGP Steel. Bearings are permanently grease sealed and are designed for heavy load capacity.

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Performance

  • Maximum Air pump Capacity – 2.4 CFM at 9 mph (up to 5 plus CFM at higher wind speeds)
  • Pressure – 30 lbs.
  • Construction – Galvanized steel tower, blades and tail.
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Anchor Stakes

At the bottom of each tower leg is a 6-bolt anchor stake clamp. The anchor stakes slide down through clamps as you drive them into the ground. This is a good anchoring system and also allows you to level your tower as you tighten the clamps. Other anchoring systems can be used at your discretion.

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Tower Stance

12′ Tower – 4’4″ Square Base
16′ Tower – 5’8″ Square Base
20′ Tower – 7’0″ Square Base
24′ Tower – 8’3″ Square Base

Diaphragm

Diaphragm

The diaphragm is reinforced neoprene die cut for accuracy and longevity. The piston and diaphragm assembly is 60% larger than others, and with the added power of a 72″ blade assembly, will pump 60% more air into your water. All intake air is filtered through a re-cleanable filter.

Freeze Control

Freeze Control

The optional Freeze Control unit is designed to monitor pressure in the airline. On cold days with high humidity it is possible to get line blockage due to the moisture freezing within the line. When this occurs the Freeze Control will automatically release an alcohol agent into the line to thaw it. The Freeze Control unit allows for aeration in the winter and also keeps excessive pressure from building up in the compressor, possibly causing damage to bearings, etc.

Head Assembly

Head Assembly

The air compressor, blade assembly, and tail assembly are properly balanced over the  top of the tower. This allows the head assembly to easily find the direction of the wind.

Compressor

Compressor

The compressor is a direct drive diaphragm pump with 1/2″ stroke. It is made up of a precision machined diaphragm push plate, and two valve retainers. There are no welds to break or warping of steel due to welding.

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Intake

All intake air is filtered through a reusable filter.

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Diffusers

Dual head diffusers handle air flow from 1.6 to 6 CFM. The hollow base can easily be filled with gravel.

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Maintenance

Very low maintenance is required. This complete windmill was designed with ease of assembly and low maintenance in mind.

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Warranty

We are so confident in this design that we now include a 5 year limited warranty!

Tower Stance

  • 12′ Tower (4’4″ Square) – 15′ Total Height
  • 16′ Tower (5’8″ Square) – 19′ Total Height
  • 20′ Tower (7’0″ Square) – 23′ Total Height
  • 24′ Tower (8’3″ Square) – 27′ Total Height

Performance

Air pump capacity:

  • 2.4 CFM at 9 mph
  • 3.2 CFM at 14 mph
  • 5 CFM at higher speeds

Maximum Pressure: 30#

Steel Gauge

  • Legs & horizontals: 16 gauge steel
  • X bracing: 14 gauge steel
  • Blades: 22 gauge
  • Spacers: 21 gauge