Model referenceDiscontinued by manufacturer
BJ BinderJetting

ExOne S-Max — Technical data

The S-Max is ExOne's large sand printer for printed casting moulds and cores in foundries. Its job box measures 1,800 × 1,000 × 700 mm and holds about 1,260 litres. The printhead applies furan resin, later also cold-hardening phenolic, onto silica sand in layers of 0.28 to 0.5 mm. With a second job box, printing continues while the first one is unpacked. The machine weighs several tonnes. Since 2019 it has been followed by the S-Max Pro with the same job box, a new printhead and an automated recoater.

A used S-Max requires space, a foundation, three-phase power, extraction and controlled sand preparation. Check printhead and nozzle failures, the full-width recoater, mixer, cleaning station, job box carriage and heater. The binder system must suit your foundry; converting from furan to phenolic is laborious. Given the discontinuation, ask ExOne about spare parts and software level and review the maintenance history; dismantling and transport require specialists and heavy haulage.

1,800 mm1,000 mm700 mmgrid 50 cm
MaterialsSilica sand

How many fit in one build job?

Material
Part (bounding box)
××mm
Powder bed: parts are stacked in 3D, supported by the powder.
–Parts per build job
–Build jobs for the quantity
–Build volume utilisation
1,800 mm1,000 mm700 mmgrid 50 cm
Approximation using the bounding box and 0.5 mm spacing. Real nesting of free-form parts usually fits more.

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3 · Have parts printed

Not worth your own machine? We produce your parts – request from the LayerByLayer 3D printing service.

Buy or have it printed? For small or changing quantities, having parts printed is often cheaper than your own machine. If you regularly fill many build jobs, your own machine pays off.

Specifications

Dimensions6,900 × 3,520 × 2,860 mm with one job box; with second job box 10,400 × 3,520 × 2,860 mm
Build Rate60–85 l/h (furan catalogue); later manufacturer figures up to 100 or 125 l/h
ResolutionX/Y/Z 0.1 mm
Bindersystemfuran resin; cold-hardening phenolic (CHP) since 2010 according to ExOne
Weight6,500 kg (furan catalogue); 8,600 kg per ExOne presentation 2020
Materialssilica sand (ExOne 280, 380, 500 µm), furan resin binder with activator, additives iron oxide and magnesium inhibitor
Layer Resolution0.28–0.50 mm
InterfaceSTL
Build Envelope in mm (x/y/z)1,800 × 1,000 × 700 mm (1,260 l)
Power Supply400 V 3/N/PE, 50–60 Hz, max. 6.3 kW; heater 400 V 3/PE, max. 10.5 kW

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All information according to manufacturer specifications, errors excepted.

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