3D Circular Braiding is multi-layer interlocking braiding that consists of a number of standard circular braiders being joined together to forma cylindrical braiding frame. this frame has a number of parallel braiding tracks around the circumference of the cylinder but the mechanism allows the transfer of yarn carriers between adjacent tracks forming a multi-layer braided fabric with yarns interlocking to adjacent layers.

The machine has concentric rings that are attached to a joint axis. Braid carriers are circumferentially mounted to the inside diameter of the ring. The ring is adjusted depending upon the thickness of the fabric. The rings rotate one braid carrier distance depending on a pre-determined path. Then, the braid carriers move in the axial direction. After that, the cycles are repeated in the above sequence. The fabric has ±bias yarn orientation through the thickness of the cylinder wall and cylinder surface at the helical path