I have an ancient Campbell Hausfield 3.5 horsepower electric compressor that was damaged when a friend accidently dropped it down basement stairs. After it's crash landing the electric motor failed and was repowered with a 5 horse Honda motor pirated from a pressure washer with bad pump. Fabricated an adjustable motor base and bored motor belt pulley and replaced air pilot valve and she ran great. But...
Compressor always had way too much moisture in discharge air. Constant frustration when using blast cabinet. Compressor has filter regulator water trap and blast cabinet has filter and water trap and the bastard continues to frustrate me when abrasive blasting for long periods. Figured heat exchanger was the trick, but didn't have a free one available until recently. While working on my old truck I got a bit rough when replacing transmission cooler hoses and bent the aftermarket aluminum transmission cooler. Give the bastard a bit of a tweak and was afraid it could break on the road, so it was replaced. No reason it couldn't be repurposed for aftercooler for my homebrewed gas air compressor and if it breaks there it won't leave me stranded. Fabricated some tubing fittings and fastened trans cooler on belt guard to allow air flow from compressor flywheel. Adapted the entire project from stuff I have hoarded and purchased at yard sales and flea markets and such. Run testing has found the trans cooler is doing exactly as I hoped. Seems air is much more dry and the repuropsed trans cooler is warm on input side and cooler on tank side. We'll see how she goes when I get serious blast cabinet use in humid weather.
Compressor always had way too much moisture in discharge air. Constant frustration when using blast cabinet. Compressor has filter regulator water trap and blast cabinet has filter and water trap and the bastard continues to frustrate me when abrasive blasting for long periods. Figured heat exchanger was the trick, but didn't have a free one available until recently. While working on my old truck I got a bit rough when replacing transmission cooler hoses and bent the aftermarket aluminum transmission cooler. Give the bastard a bit of a tweak and was afraid it could break on the road, so it was replaced. No reason it couldn't be repurposed for aftercooler for my homebrewed gas air compressor and if it breaks there it won't leave me stranded. Fabricated some tubing fittings and fastened trans cooler on belt guard to allow air flow from compressor flywheel. Adapted the entire project from stuff I have hoarded and purchased at yard sales and flea markets and such. Run testing has found the trans cooler is doing exactly as I hoped. Seems air is much more dry and the repuropsed trans cooler is warm on input side and cooler on tank side. We'll see how she goes when I get serious blast cabinet use in humid weather.

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