Leveling the Playing Field: High-End Sand 3D Printing for Small Foundries

The metalworking landscape is shifting. Small and mid-sized foundries face intense pressure to deliver rapid prototypes, custom components, and low-volume castings while keeping overhead low.

For many, industrial additive manufacturing felt out of reach due to massive footprints and high capital costs. A new launch aims to level the playing field.

Production-Grade Power in a Compact Footprint

ExOne has introduced the S-Print Pro™, an industrial sand 3D printer built specifically for smaller operations, pattern makers, and regional print service providers. The system packs the accuracy of premium, high-end platforms into a machine that operates in under 12 square meters of floor space.

This footprint allows smaller shops to adopt binder jetting without undergoing expensive facility expansions. It gives budget-conscious foundries the ability to compete on both cost and flexibility.

Advanced Surface Quality and Tooling Flexibility

The machine brings high-tier engineering to a smaller scale. It features a CoreBoost™ printhead operating at 400 dpi resolution.

Metalcasters can also utilize StepX™ in-situ surface-smoothing technology. This feature targets and reduces the "stair-stepping" effect common in layered printing. The result is smoother sand molds and cores, leading to cleaner as-cast surface finishes that reduce secondary machining time.

The system adapts to changing job requirements:

• Configurable Printhead Modules: Operators can change configurations to prioritize rapid print speeds or lower operating costs.
• Material Versatility: The system processes standard furan binder with silica sand and supports advanced materials like CeraBeads or silicon carbide for specialized, high-temperature alloys.
• Sizable Build Volume: A 1,200 x 750 x 500 mm build space handles low-to-mid-sized casting volumes efficiently.

Maximizing Shop Floor Uptime

In contract manufacturing, downtime destroys profitability. The new printer addresses this with user-replaceable printhead modules, a two-canister quick-change system, and a service-friendly layout. It runs on the intuitive S-Max® user interface, lowering the digital learning curve for manual shops.

A full job box can print in under a single shift. This allows small operations to maintain agile, single-shift workflows while rapidly delivering spare parts and niche tooling.

S-Print Pro Quick Specifications

• Build Envelope: 1,200 × 750 × 500 mm
• Layer Thickness: 0.10 to 1.00 mm (0.28 mm standard)
• Total Footprint: Under 12m²
• Machine Weight: 4,000 kg

Initial deliveries are scheduled to begin in the second half of 2026 through selected beta partners and early production reservations.

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ExOne

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