Double-axis driven melt pumps are highly suitable for HDPE pipeline extrusion production lines, playing a key role in improving production efficiency, product quality, and process stability. The following is a detailed analysis of its applicability:
Stable pressure and flow control: Double-axis driven melt pumps achieve precise control of melt pressure and flow through a double-shaft gear structure. This is crucial for HDPE pipeline extrusion, as stable pressure and flow can eliminate wall thickness deviations and surface defects caused by pressure fluctuations, ensuring the dimensional accuracy and surface quality of the pipeline.
Secondary pressurization and pressure stabilization: The pump performs secondary pressurization and stabilization on the HDPE melt delivered from the extruder, ensuring that the melt enters the mold at a stable flow rate. This helps improve the internal structure uniformity of the pipeline and enhances its mechanical properties.
Reduction of extruder load: By taking over the pressure and flow stabilization tasks, the melt pump reduces the load on the extruder, allowing the extruder to focus more on raw material plasticization. This indirectly improves production efficiency and extends the service life of the extruder.
High-temperature and high-pressure resistance: Double-axis driven melt pumps can withstand temperatures up to 400°C and pressures up to 25MPa, fully meeting the processing requirements of HDPE materials (melting point typically around 120-130°C, processing temperature range of 160-230°C).
Wide viscosity range adaptation: The pump can handle materials with a viscosity of ≤40,000 Pa·s, covering the viscosity range of most HDPE grades (melt flow rate (MFR) typically between 0.1-100 g/10min).
Precise flow control: The pump's flow range can be customized from 20CC to 3200CC, supporting the production of HDPE pipelines of various diameters (e.g., small-diameter pipelines of 50-125mm and large-diameter pipelines of 630-1200mm).
Small-caliber five-layer HDPE pipeline production line: This production line uses a double-axis driven melt pump to stabilize the pressure and flow of the melt during the co-extrusion of five layers (PE, EVOH, adhesive, etc.), ensuring precise control of the thickness of each layer and achieving a service life of over 50 years for the pipeline.
1200 HDPE pipeline extrusion production line: This large-scale production line uses a high-capacity double-axis driven melt pump to support an extrusion speed of up to 6m/min and a total output of 1250kg/h (single-layer), demonstrating the pump's ability to handle high-volume production demands.
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WhatsApp: +86 158 3833 1071
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WhatsApp： +86 158 38331071
Adress: No.22 Dongqing Str., High & New Technology Development Zone, Zhengzhou, China.
