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Mixing nozzles and static mixers from Promix ensure excellent melt homogeneity and efficiently prevent color streaks or flow lines. Quality problems in injection molding are often solved by modifying the process parameters. Masterbatch concentration and back pressure must be increased, which makes production costs more expensive. This does not have to be the case! Mixing Nozzles from Promix ensure excellent melt homogeneity. Color streaks or irregularly distributed additives in the component are a thing of the past. The ready-to-connect mixing nozzle is installed on the injection molding machine replacing the standard nozzle. Contact us for a mixing nozzle to test.

The SMN Injection Molding Static Mixing Nozzle creates homogeneous mixing of polymer melt during injection. The resulting high viscous polymer melt flow is homogeneous with regard to colorant, additives and temperature. Benefits Outstanding melt flow mixing of molten polymer prior to injection results in the following benefits: Reduced spots, streaks and clouds of color Reduced colorant usage (10% - 40) Narrower part tolerance Reduced reject rates Less part distortion Less weight variation Improved part quality when using regrind material Shorter cycle time Improved melt flow Increase regrind ratio with consistent product quality Rapid nozzle heat-up Normal Pay-back period of 2-3 months Filter for Injection Molding Static Mixing Nozzle (Type SMF) The optional SMF Filter is installed inside of the Static Mixing Nozzle to protect the hot runner system and mold when processing regrind materials by avoiding clogging and/or damage with debris carried along with the feed pellets. Grid Protection Disk for Mixing Elements (Type GPD) The optional GPD Grid Protection Disk is installed inside of the Static Mixing Nozzle upstream the first mixing element. During the start-up operation it avoids a possible so called “cold-start” damage of the mixing element grid by plugs of not completely molten and thus partly solid polymer plugs originating from the transition part between the end of the barrel and the Static Mixing Nozzle Benefits & Function The SMF Filter is designed to be used with the SMN Injection Molding Mixing Nozzle. The purpose and functionality of the SMF filter are numerous: Protects hot runner system and mold by avoiding clogging and/or damage caused my metal pieces accidentally introduced with the feed pellets to the injection molding machine (staples, metal chips, paper clips, etc). Retains semi-molten polymer pellets until melted for incorporation into the polymer melt For customers with poor thermal control systems, the SMF Filter acts as an upstream breaker-plate to prevent “cold-start” crushing of the mixing elements. Designed to retrofit into the SMN Injection Molding Mixing Nozzle without nozzle modification O.D. of SMF Filter = O.D. of SMN Mixing Elements Length of one (1) SMF Filter = Length of two (2) SMN Mixing Elements O.D of GPD = O.D. of SNM Mixing Elements Length of one (1) GPD = Length of one (1) SNM Mixing Element