Compact screening machine for metal powder > 40 μmShow me more
For the separation by particle size RHEWUM offers extremely precise screening machines that allow to produce finest metal powder (e.g. for additive manufacturing) in a high quality or to process it for reutilization and separate agglomerates or dust.
In order to achieve the desired quality of the metal powder, all impurities, undersized particles and dust need to be removed and agglomerates have to be loosened. The RHEWUM MDS sieves powdered metals from size of 40 μm very accurately and thereby reaches purities of more than 99 percent with a yield of up to 92 percent.
One substantial challenge when sieving powdered metal is to protect the screen mesh from clogging by the extremely fine particles as the cleaning and maintenance leads to loss of the high-value metallic powder and to production downtime.
The PowderJet400 works according to the principle of batchwise air jet sifting. The finest particles are vacuumed through the screen mesh by means of a defined negative pressure, while a rotating nozzle periodically reverses the air flow and clears the screen mesh again. Possible agglomerates are broken up by the air flow in the nozzle at speeds of up to 100 m/s and the particles remaining on the screen mesh are realigned.