These are our most powerful rotors for Residential Wind Turbines!
Do not waste your money on blades made of PVC, ABS or plastic. With the
first strong winds, those blades will suffer irreversible stress
failure. Durable and quiet, these high quality
professionally-designed wind generator blades won't let you down. These
are made with ultra-smooth dies to shape the blades, minimizing
surface defects. All our blades are field-tested and undergo hundreds of
hours of prototyping to ensure that they can withstand winds of at
least 70 mph! Under no load, WindGrabbers will hit 200 rpm in about 6-7
Additionally, it will begin spinning in approximately 1.5-2 mph wind!
For generators with very large permanent magnet motors or 600-1200
Watt PMA's, our three aircraft-grade aluminum WindGrabber blades are
designed for extremely high torque and power! When mounted, the swept
area (diameter) of these blades is 80 inches (203 cm). These blades are
designed to put out amps on larger motor/generator units. Because a
larger rotor inherently spins slower, this blade set should not be used
on units that have a "cut in" voltage higher than 250 rpm.