Metal powder recovery for 3D printers

Metal powder recovery for 3D printers

April 10, 2018

Kason Corp.

http://www.kason.com
3D/Additive/Alternative Materials

Millburn, New Jersey – The dust-tight, fully automated 3D-ReKlaimer Metal Powder Recovery System for 3D printing systems recovers and reconditions used powders to exacting particle sizes, reducing waste and lowering operating costs while preventing contamination of the product and plant environment.

The system can reclaim metal powders used in all current additive manufacturing (AM) technologies including selective laser sintering (SLS), fused deposition modeling (FDM), and stereo-lithography (SLA) and is offered in custom configurations to suit any AM requirement.

The unit can accept bottles of used powder connected manually or with an integral vacuum conveying system that automatically transfers used powders from the build chamber into a filter receiver/hopper located above the screening chamber of the 3D-ReKlaimer system.

Similarly, screened powders ready for reuse can be discharged into bottles for manual connection to the inlet of 3D printers or automatically transferred by an integral pneumatic conveyor that discharges into a filter receiver/hopper located above the 3D printer inlet.

Manufactured by Kason Corp., the self-contained, pre-engineered system is ready to connect and run, and can serve multiple 3D printing stations when equipped with casters. Automated controls with a human-machine interface (HMI) simplify operation and minimize involvement of plant personnel.

The 24" (610mm) diameter VIBROSCREEN vibratory screener imparts multi-plane, inertial vibration that causes on-size metal powder particles to pass through apertures in the screen, and oversize particles to travel across the screen surface into a sealed container. A Kasonic ultrasonic anti-blinding device, supplied standard, transmits ultrasonic frequencies to the screen, allowing sifting as fine as 25µm/500 mesh with no screen blinding.

The closed-loop system can be purged with inert gas to isolate contamination-sensitive powders from ambient air and moisture.

Stainless steel construction finished to sanitary standards eliminates dead spots, allowing total evacuation and easy cleaning. Optional HEPA filtration and ground resistance monitoring further enhances emission containment and operator safety.