The application scenarios of low viscosity melt pumps have long surpassed the limitations of traditional extrusion lines, and play an irreplaceable role in precise conveying in polymerization processes, general chemical processes, and various polymer material production processes.
In the low viscosity material conveying scenario of general chemical processes, its value goes far beyond simple material transfer. Faced with esterification compounds, oligomers, prepolymers, various solutions, adhesives, chemical intermediates, and even some corrosive liquids, it can accurately deliver materials to the next process under stable temperature, pressure, and flow parameters. Especially in continuous production systems, even small flow fluctuations can interfere with the final state of back-end reactions, mixing, devolatilization, granulation, or forming. The high-precision metering characteristics of low viscosity melt pumps precisely avoid such process risks from the source.
In the entire production process of biodegradable materials such as PLA, PBAT, PGA, etc., its adaptability advantage is further highlighted. The viscosity of materials in different process stages of this type of material varies greatly. Some processes are in a high viscosity molten state, while esterification, prepolymerization, and other stages exist in the form of low viscosity prepolymers and intermediates. The temperature, pressure, viscosity, and even vacuum conditions at different locations are dynamically changing. In such scenarios, there is no need to rigidly select pumps according to the "high viscosity/low viscosity" label. Low viscosity melt pumps can directly adapt to multiple low viscosity process nodes such as esterification, pre polymerization, devolatilization, and pipeline pressurization, ensuring stable transportation throughout the entire process.
In the production processes of PA, PET, PET and other synthetic fibers and polyesters, low viscosity melt pumps are the core supporting equipment for continuous production. It is often used for discharge pressurization, stable feeding before spinning, and stable transportation of back-end processes. Under some PA conditions, the viscosity of the material itself is not high, but production still requires the configuration of a melt pump - downstream spinning, cutting, filtering and other links. The stability requirements for incoming materials are much higher than the basic requirements of "material supply". Only when the inlet flow rate and pressure remain stable can the consistency and qualification rate of the final product be guaranteed.
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