Tool Steel Melt Gear Pump for EVA Film & High Viscosity Fluoroplastic

For EVA film production and fluoroplastic extrusion lines that handle high-viscosity, corrosive polymer melts, a reliable melt gear pump directly decides film thickness consistency, surface quality and line uptime. Our tool steel melt gear pump is purpose-built to solve the pain points of unstable flow, gear wear and medium corrosion in EVA encapsulation film, PFA, FEP and PVDF fluoroplastic extrusion processes.

As a positive displacement metering device, this melt gear pump adopts premium tool steel for gear and core load-bearing components. Tool steel delivers outstanding hardness, thermal stability and wear resistance under continuous high-temperature working conditions, resisting abrasive fluorine-containing melt scouring and long-term high-pressure shearing better than ordinary nitrided steel options. Combined with optimized flow channel polishing and matched corrosion-resistant sealing structure, it supports stable conveying of both EVA hot melt film resin and aggressive fluoroplastic melt without frequent material degradation or pump failure.

High viscosity polymer processing is one of the core application strengths of this gear pump. Even when melt viscosity reaches thousands of Pa·s, the precise meshing gear pair maintains fixed displacement per revolution, effectively isolating pressure fluctuation from the extruder screw. It reduces melt pulsation sharply, so EVA cast film keeps uniform thickness, no streaks or thickness deviation, which is critical for solar EVA encapsulating film quality control. The optional thermal oil heating jacket keeps a consistent temperature profile across the pump cavity, avoiding local melt cooling, solidification and flow blockage during slow-speed high-viscosity feeding.

Corrosion resistance is specially upgraded for fluoroplastic grades. Fluoropolymers release corrosive small molecules at extrusion temperature, which will erode common carbon steel quickly. Our tool steel melt pump is configured with anti-corrosion surface treatment and compatible side plate materials, suitable for continuous production of FEP, ETFE, PFA and PVDF. It extends service life and cuts maintenance downtime compared with standard polymer melt pumps.

This melt gear pump fits seamlessly with single-screw and twin-screw extruders for EVA film casting, fluoroplastic sheet, fluorine tube and profile extrusion. It undertakes melt pressurization and precision metering, letting the extruder focus on plasticizing and homogenizing. Manufacturers gain stable throughput, lower scrap rate, higher line yield and easier closed-loop thickness control.

We support customized displacement, inlet/outlet flange size, seal type and heating configuration according to your EVA film width, output and fluoroplastic material grade. Each unit goes through strict pressure and flow testing before delivery, compliant with industrial extrusion standards.

If you are sourcing a durable, high-precision melt metering solution for EVA film or high-viscosity fluoroplastic extrusion, our tool steel melt gear pump balances wear resistance, corrosion performance and stable metering to match your demanding production environment.

Email: sale@meltpump.com

WhatsApp: +86 158 3833 1071

Any questions about our products, please feel free to contact us! We promise you high-end products and first-class service.Look forward to our cooperation!!!