In the BOPP (Biaxially Oriented Polypropylene) film manufacturing process, the extruder melt pump stands as an indispensable precision component that redefines production efficiency and product quality. As the demand for high-transparency, uniform-thickness BOPP films surges across food packaging, electronics, and medical sectors, this critical equipment has become the benchmark for modern extrusion lines.
The extruder melt pump excels in three core functions that address traditional production pain points. Firstly, it stabilizes melt pressure within ±0.5% fluctuation, eliminating bubbles and streaks caused by extruder pulsations. Operating at 15–30 MPa, it ensures consistent film thickness with deviations controlled within ±3% . Secondly, its precise flow metering (2000–7000 kg/h for BOPP lines) enables uniform bidirectional stretching, critical for achieving the 200–300 MPa tensile strength required for high-performance films . Thirdly, it boosts pressure from the extruder’s low-pressure zone to the die head’s high-pressure demand (up to 40 MPa), guaranteeing optimal melt distribution.
Constructed with high-temperature alloy steel and nitrided gears (0.05–0.15 mm clearance), the pump withstands extreme conditions (350℃, 500–3000 Pa·s viscosity) while minimizing wear . Its energy-saving design reduces processing costs by 25% through low-temperature extrusion, extending extruder lifespan by lowering screw wear . Equipped with double helical seals and electric heating systems, it ensures leak-free operation and temperature stability.
For BOPP producers aiming to enhance competitiveness, the extruder melt pump delivers tangible ROI: improved product qualification rates, reduced material waste, and compatibility with biodegradable polymers .
Email: sale@meltpump.com
WhatsApp: +86 158 3833 1071
next: None
TEL：+86 371 67991755
WhatsApp： +86 158 38331071
Adress: No.22 Dongqing Str., High & New Technology Development Zone, Zhengzhou, China.
