ExOne Launches S-Print Pro Binder Jetting System for Smaller Foundries

ExOne has released the S-Print Pro, a binder jetting system intended to be more affordable and accessible for smaller foundries and print service providers. While still an industrial-scale solution, its compact design is a departure from typical large systems in this class. The machine occupies 12 square meters and is built upon ExOne's S-Max system.

The S-Print Pro features a build volume of 1,200 x 750 x 500 mm and can handle layer thicknesses ranging from 0.10 to 1.00 mm. It is capable of producing one build per shift, approximately 8 hours. The printer utilizes a furan binder with materials such as silica sand, CeraBeads, or silicon carbide, offering a resolution of 400 dpi. The machine weighs 4,000 kg and measures 5,250 x 2,255 x 3,100 mm.

CeraBeads, spherical beads made from aluminum silicate (Mullite), are one of the supported materials. ExOne previously announced optimizations for these beads, which are reported to reduce damage to sand casts during handling and storage, while also improving the surface roughness and overall smoothness of the final parts.

According to ExOne's CEO Eric Bader, the S-Print Pro is a response to foundry requests for an affordable system that delivers industrial-quality sand printing. Aldo Randazzo, Director of Application Management at ExOne, highlighted that most foundries are small operations and that industrial binder jetting has historically not been designed for their scale or budget, a gap the S-Print Pro aims to fill.

The system incorporates a user-replaceable CoreBoost printhead and StepX surface smoothing technology, designed to minimize stair-stepping effects and enable the printing of more complex geometries. ExOne has also focused on optimizing maintenance for simplicity and ease of use.