Smart Elbow deflection elbows preclude abrasive resins from impacting the elbow wall, preventing fines, angel hair, streamers and elbow wear.
The vortex chamber of the HammerTek deflection elbow protrudes partially beyond the 90-degree flow path, causing a sphere of material-in-air to rotate in the same direction as the air stream that powers it, gently deflecting incoming material around the bend without impacting the elbow wall.
Conventional sweep elbows can blow out as a wear point develops from abrasive materials impacting the elbow wall.
Plastic pellets skidding against the outside radius of conventional sweep elbows create friction and heat that can melt pellet surfaces, forming streamers and angel hair.
The Plastics Group replaced conventional sweep elbows with HammerTek deflection elbows, none of which has needed replacing. By preventing material impact with the elbow wall, the company has prevented elbow wear, the generation of fines and the frictional heat that previously caused the formation of angel hair and streamers.
The Plastics Group conveys approximately 3,300 lb (1,497 kg) per hour of reinforced resins through two pneumatic lines, and between 1,200 to 1,500 lb (544 to 680 kg) per hour through a third line.
Abrasive reinforced polypropylene resins caused wear and failure of traditional long-sweep pneumatic elbows. Impact of material against the elbow wall also created fines and frictional heat that partially melted the resin.