The plastics industry depends on durable, high-performance pump systems to meet the demands of modern manufacturing. From resin transfer to additive dosing and cooling, the right pumping technology is essential to keeping processes efficient, clean, and cost-effective.
Across injection moulding, extrusion, and compounding, the plastics industry handles complex materials that require accurate flow control and high chemical compatibility. Pumps must perform reliably under elevated temperatures and with viscous or abrasive substances.
Plastics Industry Key Applications
1. Polymer and Resin Transfer
Raw polymers, liquefied resins, and process additives are pumped from storage tanks to feeders or mixers. Progressive cavity, gear, and diaphragm pumps are often selected for their ability to move high-viscosity materials smoothly and without pulsation.
In the plastics industry, flow stability during resin transfer is critical to ensuring consistent product quality and preventing shear damage. Pump systems must also be compatible with sticky or chemically active compounds.
2. Extrusion and Compounding Support
Extrusion lines and compounding systems rely on pumps to deliver a steady supply of melts, filler materials, or masterbatches. These processes require consistent pressure and thermal stability, especially during continuous high-volume production runs.
Pumps used here must be capable of operating under high temperatures and providing precise metering. The plastics industry often uses custom-configured systems to meet specific pressure and throughput requirements.
3. Cooling and Heat Transfer Circulation
Thermal regulation is a key factor in plastics manufacturing. Pumps are used to circulate water or oil-based coolants through moulds, dies, and process equipment, maintaining temperature control throughout each production cycle.
In the plastics industry, centrifugal and multistage pumps offer reliable heat transfer performance, helping prevent defects caused by overheating or uneven cooling.
