Xaar Nitrox Printheads enable High Precision Waxjetting for Industrial Casting Applications

22 July 2026: ZCZH, a China-based industrial 3D printing company, has built a wax-jetting system around Xaar’s Nitrox printheads to digitise wax pattern production for precision casting. The setup replaces manual engraving and mould-based tooling with a fully digital additive process, cutting pattern production from days to hours while holding micron-level accuracy.

Why wax patterns matter

Wax patterns are a critical stage in investment casting and directly affect dimensional accuracy, surface quality and production efficiency. Traditional methods based on manual engraving and tooling are slow, expensive to change and poorly suited to small-batch or complex parts. As competition in precision casting grows, foundries want digital options that shorten development cycles and widen design freedom.

How the system works

At the core is inkjet deposition using Xaar’s Nitrox printheads, supported by the company’s TF Technology and SureFlow fluid management system. Together these keep ink recirculating directly behind the nozzles, preventing sedimentation and reducing clogging, a real risk when jetting wax. The printhead architecture handles higher-viscosity fluids while keeping precise droplet control, so wax deposits consistently even across complex geometries. Ultra High Viscosity Technology and controlled temperature management support stable, long-duration jetting in production.

Because patterns are printed straight from 3D design data, post-processing drops away and production cycles compress from days to hours without losing repeatability. Foundries can move faster on new product development, first-article verification and small-batch runs.

“Wax pattern production places very specific demands on accuracy, repeatability and production stability,” said Samuel Tam, General Manager, Xaar Asia. “This project demonstrates how industrial inkjet can be used as a reliable manufacturing process rather than a prototyping tool. By combining precise droplet control with stable, long-duration jetting, inkjet enables manufacturers to digitise complex workflows and achieve consistent results at industrial scale.”

The system suits small-batch and multi-variant production, letting manufacturers change designs at the digital model stage with no tooling. That removes mould costs and makes complex, low-volume parts more viable in sectors such as aerospace, automotive, medical devices and industrial equipment.

The project shows industrial inkjet moving further beyond print into advanced manufacturing. By producing wax patterns digitally, ZCZH gives precision-casting manufacturers a practical route to shorter lead times and greater design flexibility.

FAQ

What is wax-jetting ?
An inkjet-based additive process that prints wax patterns directly from 3D design data, replacing manual engraving and mould tooling in investment casting.

What do Xaar’s Nitrox printheads do here ?
They deposit the wax, using TF Technology recirculation and SureFlow fluid management to jet higher-viscosity wax reliably with precise droplet control.

Which industries benefit ?
Aerospace, automotive, medical devices and industrial equipment, where complex, low-volume precision parts are common.

www.xaar.com