Reply by SweetTea

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Posted on Ideas for rebuilding my Charger AirPro air compressor?

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478 posts in 1578 days

#1 posted 10-23-2018 11:52 AM

Direct drive compressors are very noisy. The motors usually run very fast. Attaching a pulley to the motor may not be possible, as the compressor is usually close coupled to the motor. Your best bet is to buy a belt drive compressor and an induction motor and attach it to a built up platform on the tank. Harbor Freight has what you need, but I can t attest to their quality or how long it would last.

- MrRon

I think that is what I plan to do. I will buy a 3HP motor and equivalent 3HP rated pump from Harbor Freight. The motor retails for approx $170 and the pump for $140 at Harbor Freight. I will build a larger platform on top of the tank to support them. I hope that the Harbor Freight pump has some literature included that mentions the optimal rpm so that I can use a pully/rpm calculator to determine the optimal pully size. The total cost from HF should be about $280 with my coupons. Then I will have to source a pully and belt.

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