Advanced ceramic and specialty sands that ensure dimensional accuracy, superior surface finish, and reduced casting defects.

At TUSHUN, we provide engineered sand solutions that elevate the quality and reliability of metal casting operations. Whether producing intricate investment castings or large sand cast components, our products maintain thermal stability and resist deformation under extreme conditions. This stability minimizes expansion-related defects and delivers an exceptional surface finish with precise dimensional control. Free of crystalline silica and manufactured to strict standards, our sands enhance productivity, improve mold stability, and create a safer, more sustainable work environment. With proven performance and consistent quality, TUSHUN is your trusted partner for achieving efficiency, accuracy, and long-term value in metal casting.

Case

Shell Molding

Posted on 2025-09-29

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Advantages: high surface finish, good demoulding, low thermal expansion

Application: small and medium-sized steel parts, stainless steel parts, precision castings, etc.

Cold-box / No-bake

Posted on 2025-09-29

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One of the most widely used mainstream processes

Advantages: Sand mold has high strength, suitable for medium and large castings, ceramic sand surface is stable and non-hygroscopic, reducing the amount of release agent

Application: alloy steel, ductile iron, large machine base, etc.

Hot-box

Posted on 2025-09-29

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Advantages: Spherical particles have faster heat conduction, dense sand core and good surface quality

Application: Automobile cylinder block, cylinder head, exhaust pipe inner core

Vacuum Sealed Molding

Posted on 2025-09-29

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Filling the film model with dry sand under vacuum

Advantages: Sand must be spherical, fluid, and thermally stable. Ceramic sand is very suitable for

Application: Large iron castings (such as manhole covers, motor housings)

Lost Foam Casting

Posted on 2025-09-29

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Foam model + negative pressure molding + dry sand filling

Advantages: Ceramic sand has regular shape and better fluidity than quartz sand, does not damage the foam model, and is resistant to high temperatures without sand explosion.

Application: Medium and large parts with complex shapes in steel and iron castings

Investment Casting

Posted on 2025-09-29

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Not suitable for surface coating, but can be used for shell back coating or sand filling

Advantages: high sphericity, no puncture of wax mold, stable shell

Application: Used in non-structural layers of precision steel parts

Additive Manufacturing

Posted on 2025-09-29

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Advantages: Spherical sand has high printing precision and good sand layer spreading fluidity

Prerequisite: The glue spraying/solid spraying system of your customer's 3D printer must match