The Pellbow® Resists Wear – Naturally. In traditional long radius elbow installations, the conveyed product drags along the outside elbow wall at a high velocity. Heat and friction create streamers and dust and wear through the elbow. By design, material flowing through the Pellbow® accumulates in the pocket or “impact zone” and moves gently upward and then out of the Pellbow®. Incoming material is deflected at 90 degrees with minimum resistance and no damage from impact.