3D printing powder screening machine

3D printing powder, as a raw material, needs to meet the particle size standards of 3D printing technology. Therefore, a 3D printing powder screening machine is required to sieve the powder, removing agglomerated particles and impurities. The sieved powder particle size is typically in the range of 10–100 micrometers, and different mesh sizes can be selected depending on the printing process. The processing capacity varies depending on the model; small models can sieve 100 kg per hour, while industrial-grade systems can achieve continuous processing of 15 tons. The equipment adopts a fully enclosed structure to prevent powder escape and is equipped with explosion-proof motors, inert gas protection interfaces, and electrostatic elimination devices to ensure operational safety.

3D Printing Powder Screening Machine Principle

After being prepared through processes such as ball milling and atomization, the 3D printing powder enters the enclosed sieving chamber of the 3D printing powder screening machine. The ultrasonic vibrating screen generates three-dimensional motion, breaking up electrostatically agglomerated powder, preventing screen clogging, and allowing powder of the correct printing particle size to pass through the screen, while removing coarse particles and agglomerated impurities. The recovered printing powder residue is also screened through this process. The equipment can be filled with inert gas to isolate it from air, ensuring a low oxygen content in the 3D printing powder. After screening, powders of different grades are collected separately and reused in printing production or secondary processing.

Benefits of a 3D Printing Powder Screening Machine

During the printing and recycling process, 3D printing powder can clump or become oversized due to heat, moisture, and splashing molten metal. A 3D printing powder screening machine can smooth the surface of the 3D printing powder, ensuring uniform powder distribution and preventing interlayer defects. In some processes where powder particle size is sensitive, the 3D printing powder screening machine can remove coarse and fine powder, maintaining consistent powder thickness and melting behavior. For expensive 3D printing powders, the equipment can recover some powder through screening, thereby reducing material costs. Screening also protects the 3D printing equipment.

3D Printing Powder Screening Machine Parameter Table

3D Printing Powder Screening Machine Case Study

A precision machinery manufacturer supplies 3D printed components to the semiconductor and aerospace industries. Previously, they relied on manual powder handling, with a single round of powder cleaning and screening taking 3 hours. Manually handling powder containers was not only slow but also prone to powder contamination, hindering production capacity. After introducing a 3D printing powder screening machine, the equipment directly connects to the 3D printer's overflow port, using vacuum powder suction instead of manual brushing. It also features an ultrasonic anti-clogging system for automated screening. After the upgrade, a single round of powder handling was reduced to 90 minutes, and overflow container cleaning only took 10 minutes, increasing efficiency by 50%. Furthermore, the entire process is enclosed, preventing cross-contamination between titanium and stainless steel powders and reducing the risk of worker dust exposure.

3D Printing Powder Screening Machine Equipment Display Image

The 3D printing powder screening machine can screen different types of 3D printing powders, including metal powder, plastic powder, and ceramic powder. It is used in scenarios such as initial screening after new powder production, re-screening after powder recycling, and final screening before powder mixing. If you are unsure about the screen selection, screen size, motor configuration, or applicable scenario when making your selection, you can contact Dahan Machinery online. The manufacturer will provide a standard screen or a customized configuration based on the production environment of the 3D printing powder to meet your production needs.