Coimbatore's foundries cast pump bodies, motor housings and machine parts, and must get rid of used moulding sand. A shared plant that cleans and returns this sand saves them buying new sand and paying to dispose of the old.
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A foundry sand reclamation plant collects used moulding sand from foundries, breaks up lumps, removes metal bits, dust and burnt binder, and returns clean sand that can go back into moulds. Sand too fine to reuse is screened and sold to brick, block and road makers instead of being dumped.
Foundries are one of Coimbatore's core industries, casting pump bodies, motor housings, textile machinery parts and auto parts. Dumping used sand is tightly controlled, and new sand is harder to get as sand mining is restricted. Many small foundries lack the space or money for their own reclamation machines, so one shared plant makes sense. The state industrial park at Varapatti near Sulur has land available; check that it allows this kind of unit before you apply.
You need pollution control board consent, dust collection that works, trucks and a site with room for sand heaps. Test each foundry's sand before buying machines: some sand can be cleaned by scrubbing alone, but some also needs heating, which costs more to run. The hard part is getting foundries to keep scrap out of their sand, deliver it reliably and trust reclaimed sand, so start with trial batches and quality tests.
Sign up foundries through local foundry associations, and sell the fine leftover sand to building material makers.
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