Lau Fan Blade 20" Counterclockwise 33-Degree 4-Wing

The Lau 60559201 is a 20 inch counterclockwise rotation, 33 degree pitch, four-wing propeller fan blade for condenser and ventilation applications.

Sound from a condensing unit comes predominantly from two sources: the compressor and the outdoor fan. At part load and in quieter modern equipment, the fan frequently dominates, and fan noise rises steeply with blade tip speed.

That relationship explains the design choices seen across the range. Manufacturers wanting a quieter unit move to a larger blade turning more slowly, which delivers the same airflow at lower tip speed. Manufacturers constrained by cabinet size use a smaller blade with steeper pitch or more wings, which is louder for the same airflow.

For service work, the implication is that a substituted blade of different specification can change how a unit sounds even when it cools acceptably. On installations close to bedroom windows or neighbouring properties, that difference generates complaints, so matching the original specification matters for reasons beyond performance.

Confirm diameter, rotation, pitch angle, wing count, hub bore, and hub depth before ordering, and verify running current after installation.

Brand

Lau

SKU

60559201

Category

Fan Blades

Weight

4.3 lbs

Dimensions

20.00" x 20.00" x 5.10"

Price

$80.00

Availability

In stock

Rating

4.5 / 5.0