More efficient powder recovery: Wilting halves sieving time for metal 3D printing

Dutch precision manufacturer Wilting has significantly optimized its additive manufacturing process by automating the time-consuming sieving step when reusing metal powder. By integrating the Russell AMPro Sieve Station, the company was able to reduce the total time for sieving from around three to one and a half hours – a significant advance in terms of throughput and process reliability.

Wilting has been combining CNC machining, 3D printing and final assembly for high-tech applications for years. In additive manufacturing, the company relies on 3D Systems DMP Flex 350 systems for processing metal powders, among other things. Previously, the used powder was sieved manually, which was associated with considerable personnel costs and long downtimes. The manual removal from overflow containers and the manual transfer to sieving equipment led to bottlenecks and made it difficult to scale up production.

With the introduction of the Russell AMPro Sieve Station, the sieving process was largely automated. The system uses vacuum-based suction to direct the excess powder directly from the printer into the sieving system. This reduces the emptying time of the overflow container from the previous 40 minutes to just ten minutes. The closed system also increases work safety, as the powder no longer has to be handled openly.

The screening station is complemented by the Russell Vibrasonic Deblinding System, which uses ultrasonic vibrations to keep the screening performance constant and prevent the screen meshes from clogging. This not only extends the service life of the screen mesh, but also reduces cleaning and maintenance intervals. For Wilting, the technical upgrade means more efficient use of printing capacities and a significant reduction in the workload of operating personnel – a necessary step for the further expansion of its AM activities.

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