Grooved Feed can increase output and reduce melt temperature. But these throats are not for every application. They have specific applications, with many polymers, grooved-feed extruders produce 20-40% higher output per rpm than the same diameter extruder with a smooth feed bore. A grooved feed section improves solids conveying and increases extruder pumping action, thereby raising output at a given extruder rpm, reducing energy put into the polymer, and lowering melt temperature.

Grooved Feed Sleeves are designed to enhance the efficiency of extruders by improving the feeding process. By incorporating grooves in the feed section, these sleeves increase solids conveying and pumping action, resulting in significantly higher output rates—typically 20-40% more per rpm compared to smooth bore extruders of the same size. This design not only boosts throughput but also reduces the energy required to process polymers, which helps lower the melt temperature. Although highly effective for many polymers, grooved feed sleeves are best suited to specific applications where improved feeding and energy efficiency are critical for optimal extrusion performance.