New shutoff nozzle suitable for use under extreme conditions

Germany's Herzog AG has recently designed a spring-type needle-like shut-off nozzle suitable for high temperature and high pressure applications. SHP small machine nozzles can withstand pressures up to 752 degrees Fahrenheit and 43530 psi (pounds per square foot). They are designed with high-performance tool steel that can spray materials such as polyether ketones and nylon. The spring-type structure is disposed outside the melt flow path. The nozzle has a nozzle size of 0.5 mm, a length of 116 mm, a tip length of 24 mm, and a maximum injection rate of 1600 ml/sec.

Source: Plastics Industry