The Japan Steel Works, Ltd. Plastics Machinery Business Division "Delta Crown" to achieve pellet size uniformity Abstract Utilizing technology of T-Die and manifold die head manufacturing, JSW developed "Delta Crown" to improve constant throughput rate of extrusion. Features ■ Constant flow rate distribution in the flow direction density of strand throughput rate[-] strand throughput Conventional crown is controlled throughput rate by narrowing vertical and horizontal direction. Delta Crown added flow direction narrowing to equalize high viscosity polymer. conventional crown base line Delta Crown strand nozzle location comparison of throughput rate uniformity ■Variety land design depends on polymer rheology By analyzing viscosity, capacity, temperature of polymer, JSW can offer most suit design for your purpose. Delta Crown improve throughput ef f iciency with low-cost investment as it can be installed on original die head. Die plate modification will enhance efficiency of Delta Crown. Japan Steel Works, Ltd. Tokyo Head Office Gate City Osaki West Tower 1-11-1, Osaki, Shinagawa-ku, Tokyo 141-0032, Japan Europe (Germany) China (Shanghai)