3D-Printed Prototypes & Development Parts

3D sand mold rapid printing is a binder jetting (BJ) based additive manufacturing technology tailored for the foundry industry. It enables direct digital production of sand molds and sand cores to realize mold free rapid manufacturing. Using silica sand, ceramsite sand and other base materials together with binders such as furan resin, the process spreads sand layer by layer according to the 3D model and selectively jets binder for curing, ultimately forming high precision sand molds and eliminating the conventional manufacturing workflow for wooden or metal patterns.

Core Advantages

Extremely short lead time: Traditional pattern making takes several weeks, while 3D printed sand molds can be finished within 1 3 days, cutting R&D cycles by over 50%.
Design freedom: It produces structures difficult for conventional processes, including complex inner cavities, thin wall sections and conformal runners. Integrated printing is supported to reduce parting line errors.
High precision: Dimensional accuracy reaches ±0.1 mm, complying with Class A casting standards. Excellent surface finish reduces subsequent machining allowances.
Cost effective & high efficiency: No patterns are required. Total production costs for single piece or small batch production drop by 30% 50%. Recyclable sand delivers eco friendly operation.

Typical Applications

Widely adopted in automotive, aerospace, energy pump valve, construction machinery and other sectors. It manufactures sand molds for engine blocks, turbine housings, complex pump bodies, large structural components and more, suited for prototype development, small batch customization and mass production of intricate castings.

Technical Value

Driven by digitalization, this technology innovates the foundry sector by streamlining the full workflow of “design printing pouring”. It helps enterprises accelerate product iteration, shorten delivery lead times and boost market competitiveness, representing a core technology integrating advanced manufacturing with traditional casting.