UnionTech to debut MUEES430 PRO metal AM machine at RAPID + TCT

UnionTech, headquartered in Shanghai, China, will debut its new MUEES430 PRO metal Additive Manufacturing machine at RAPID + TCT 2026, scheduled to take place from April 13–16 in Boston, Massachusetts, USA.
The MUEES430 PRO is a Laser Beam Powder Bed Fusion (PBF-LB) machine designed for industrial batch production, built around a quad-laser architecture and a suite of process engineering choices aimed at improving throughput, precision, and uptime.
A live Additive Manufacturing demonstration will run at Booth 1865 throughout the show, giving attendees the opportunity to see the MUEES430 PRO in action.
At the heart of the machine are four 500W ytterbium fibre lasers operating in parallel over a 430 × 340 × 330 mm build area. Scan speeds reach up to 6 m/s, with jump speeds pushing to 18 m/s, driven by high-speed galvo scanners working in tandem with a bidirectional powder recoating system that UnionTech claims improves recoating efficiency by 20% over conventional unidirectional setups.
Layer thickness runs between 0.02 and 0.1 mm, and Z-axis accuracy holds within ±3 µm, a figure made possible by high-accuracy optical encoders that deliver uniform powder layers across the entire bed.
The machine’s atmosphere management is handled by an in-house recirculation system built around a sintering-plate filter design. This keeps oxygen levels at or below 100 ppm in roughly ten minutes from a cold start, reducing preparation time before each build.

UnionTech rates the system’s service life at over 40,000 hours, which it attributes largely to the sealed recirculation architecture and a dual fixed sealing system on the recoating rail that reportedly extends maintenance intervals by a factor of three compared to previous designs. The system also carries ISO 13849-compliant safety design and includes UPS power backup to protect in-progress builds from unexpected power interruptions.
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Airflow inside the build chamber follows a CFD-optimised path designed to maintain consistent spatter management and uniform atmospheric conditions across the full print area, important for batch production.
Alongside the hardware, UnionTech will be showcasing its UT ONE integrated software platform, designed to unify job preparation, process monitoring, and workflow management across its machine range. Part preparation runs through Polydevs Pro and BPC, while machine control is handled by the MSCON controller.
A real-time intelligent monitoring system watches the build chamber throughout the print, generating traceable quality data that industrial customers increasingly require for validation and audit purposes.
The manufacturer’s material ecosystem, which includes proprietary metal powders alongside its established SLA resin range, is positioned as part of a closed-loop value proposition.



























