10 Reasons to Use Pellets in 3D Printing

The term pellets, in the context of plastics, refers to small granules of various shapes (small cylinders or discs) made of polymer or a polymer blend. These are used as a raw material for the manufacture of finished plastic products through various technologies, among which is additive manufacturing. The 3D printing technology used with pellets is material extrusion, which often involves a comparison with the use of filaments. Today we will look at why using pellets in 3D printing can be advantageous, analyzing the top 10 reasons why manufacturers and users are turning to this technology. The choice is not just about the shape of the material used, as much as the type of material, the machines used, the end applications, the size of the parts, the flexibility and speed of printing, and the sustainability aspect of the pellets. We delve into all these points and more below.

1. Wide Material Choice

One of the prime motivations for adopting pellet 3D printing is the ability to have access to a wide range of materials. In FFF 3D printing, the materials available in filament form, while numerous today, pale in comparison to those available as pellets. This is because the pelletizing process allows a plastic material to be transformed into pellets without significantly compromising the starting polymer, as is the case when creating filaments.

Thus, pellets allow the use of raw polymers, thermoplastics and even composite materials with additives such as glass or carbon fibers. This allows experimentation with new formulations, adapting the mechanical, thermal or aesthetic properties of the finished product and obtaining customized formulations. Finally, pellets are also used in other manufacturing technologies, such as injection molding, which expands the choice of materials available.