Deflashing Plastic Parts

Molded plastics often contain flashing that needs to be removed. While there are many methods ranging from a sharp knife to cryogenic deflashing, vibratory tumbling is an effective and cost efficient method.

Flash sticking above edge
Flashing removed - smooth edge, matte finish


The part was vibratory tumbled with Ceramic Media for only 30 minutes. A non-abrasive tumbling compound solution was used to keep the process lubricated and clean. Even after this short cycle time, the flashing was completely removed and the edge was smooth. The surface had matte, tumbled finish. At a 30 minute cycle time the general purpose media should be able to be re-used for 250 or more batches to spread the operating cost over many parts.