Title: Wind driven air compressor 3 weeks and going good
Product review: Took a big commercial grade 5 foot potato cellar fan, put a pulley on a small 1 horse powered (motor gone from it) compressor then onto a pulley where the 4.5 horse 220vac motor was and voila! Mounted this in a windmill style mount up at 20 feet high with tail vane and .It's windy here and I now have a 50 gallon air tank always topped off with 140 psi. It takes 1 full day to fill it from zero but that saves me almost $0.55 every time, about $2.00 + a week free air. Worth the little engineering and this pulley.The pulley is pot metal, it will break if put under heavy use. If you need something for over 5 horse and high rpms then you need a milled steel pulley.
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