High Pressure Polymer Transfer Melt Pump, Durable Tool Steel Gear Pump for Film Pipe Extrusion & Plastic Processing
High pressure polymer transfer melt pump is a critical booster and metering gear pump designed for continuous thermoplastic extrusion processes. Made of durable premium tool steel, this melt gear pump is widely deployed in film extrusion, plastic pipe extrusion and all kinds of plastic processing production lines to deliver stable, pulsation-controlled polymer melt transfer under demanding high-pressure working conditions.
Conventional extruders often struggle with unstable outlet pressure and flow fluctuation when building high back pressure for die forming. This tool steel melt pump takes over the pressure generation and melt conveying task. It separates the melt feeding function from the extruder screw, stabilizes the pressure before entering the extrusion die, and eliminates flow surges that cause product defects such as film thickness deviation, pipe wall inconsistency, surface streaks and dimensional out-of-tolerance.
The tool steel construction is the core advantage for long-term heavy-duty plastic processing. Compared with ordinary carbon steel pumps, tool steel features excellent hardness, wear resistance and high-temperature strength. It resists abrasion from filled, reinforced or high-viscosity polymers and maintains tight clearances over long running hours, preserving metering precision and sealing performance even under continuous high pressure. Spiral sealing structure is optional to minimize melt leakage at high pressure points.
This polymer transfer melt gear pump adapts to a broad range of polymer materials, including PE, PP, PET, EVA, TPU and other engineering plastics. It fits perfectly with blow film, cast film, thin and thick wall pipe extrusion, as well as compounding, modification and masterbatch processing lines. It works cooperatively with screen changers, single-screw and twin-screw extruders to form a complete extrusion system.
Using this high pressure melt transfer pump brings tangible production benefits: stabilized melt flow, improved finished product consistency, lower scrap rate, reduced extruder load and energy consumption. It shortens material residence time inside the extruder barrel, preventing thermal degradation of heat-sensitive polymers. We supply multiple displacement options and support customized flange size, seal type, gear structure and drive configuration to match your existing plastic processing equipment.
Every tool steel melt gear pump undergoes strict factory inspection, including pressure tightness testing, accuracy calibration and high-temperature running test before shipment. As a direct manufacturer, we provide technical support for installation, commissioning and routine maintenance guidance.
If you are searching for a reliable high pressure polymer transfer melt pump to upgrade your film or pipe extrusion and plastic processing line, our durable tool steel melt gear pump is a cost-effective and high-performance solution.
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