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Sand-BJ (Sand Casting Binder Jetting)

BJT for foundry molds + cores. silica sand + furan binder. 1-2 m³ mold in 24h. casting revolution.

Sand-BJ is a BJT variant for foundry sand molds and cores. Inkjet array deposits furan or phenolic binder onto a silica sand powder bed. Ready mold is extracted, ready for molten metal pour.

Sand-BJ eliminates pattern making in casting workflow: saving weeks → days. Especially valuable for: cylinder heads, large valve bodies, art casting, prototype castings.

Engineer, author of The Big Book of 3D Printing and additive manufacturing expert