Stable melt pressure and clean resin are the backbone of high-output extrusion lines. Without them, you fight inconsistent dimensions, surging lines, and rising energy costs. Our polymer melt pump, filtration, & screen changer systems from MAAG stabilize your process, reduce scrap, and extend equipment life whether you're running virgin resin, reclaim, or something in between.
Gauge Advisor is the official sales partner for MAAG , a global manufacturer of polymer filtration systems, gear pumps, and pelletizing solutions. Together we provide melt pumps and screen changers engineered for consistent pressure, reduced downtime, and efficient resin processing across extrusion and compounding lines.
Tell us your polymer type, throughput, and process requirements and we will recommend the right melt pump, screen changer, or filtration system. We will include pricing, lead times, and installation guidance. Need help sizing the pump or selecting the right filter? We can do that too.
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Stabilize melt pressure and eliminate pulsation at the die to improve thickness uniformity and reduce material waste. Precision gear pumps enable tighter gauge control and higher line speeds in film and sheet extrusion.
Maintain continuous production with screen changes under pressure. Continuous filtration systems remove contamination without interrupting flow, ensuring stable melt pressure and consistent product quality.
Process filled or contaminated materials without screen clogging or frequent changeovers. Advanced melt filtration systems remove gels, black specks, and fines while maintaining throughput and product quality.
Integrate pump speed, pressure control, and temperature monitoring into your extrusion line. Advanced control systems improve process stability, enable faster startups, and provide real-time production visibility.
Feed multiple dies or layers with consistent, independent melt streams. Ideal for coextrusion and multilayer film structures where uniform flow distribution is critical to product performance.
Implement fully integrated melt delivery systems including pumps, filtration, drives, and support structures. Designed for easy installation, retrofit flexibility, and optimized extrusion performance.
Deliver stable melt pressure at the die to maintain consistent OD, wall thickness, and tight dimensional tolerances. High-pressure gear pumps reduce pulsation and enable tighter process control in pipe, profile, and tubing extrusion.
Maintain consistent flow and pressure during screen changes without interrupting production. Continuous screen changers prevent pressure spikes that can impact part geometry and surface quality.
Process filled compounds and controlled regrind streams without compromising product quality. Advanced filtration removes gels and contaminants while maintaining throughput and protecting downstream equipment.
Engineered specifically for rigid PVC processing, these systems reduce temperature rise, minimize pulsation, and relieve load on the extruder. Ideal for pipe, profile, and window extrusion applications.
Distribute melt flow to multiple dies or downstream processes with consistent pressure and independent control. Ideal for profile extrusion and systems requiring multiple outputs from a single extruder.
Upgrade existing extrusion lines with fully integrated melt delivery systems including pumps, filtration, drives, and support structures. Improve process stability, reduce scrap, and simplify installation.
Stabilize melt pressure and flow when processing regrind, flakes, and recycled materials. Melt pumps reduce pulsation, improve consistency, and allow higher throughput even with variable material quality.
Maintain continuous production while filtering contaminants from recycled material streams. Designed for continuous operation in applications with controlled or moderate contamination levels, reducing pressure fluctuations and downtime.
Process heavily contaminated materials with advanced filtration designed for recycling applications. Remove particles, gels, and debris while maintaining throughput and protecting downstream equipment.
Monitor and control pressure, temperature, and pump performance in real time. Improve process stability and reduce variability when working with inconsistent recycled materials.
Split and control melt flow across multiple downstream processes. Useful in recycling lines feeding different extrusion outputs or managing variable material streams.
Integrate pumps, filtration, controls, and support systems into a complete melt delivery solution. Designed for high contamination environments and optimized for reliability, high throughput, and ease of retrofit.
Remove gels, fines, and metal contaminants without choking your extruder
Maintain clean flow and consistent pressure for regrind-heavy formulations
Extend run time and reduce consumable screen changes on reclaim lines
Stabilize melt pressure for ultra-consistent wall thickness and concentricity
Ensure product quality with continuous filtration and pressure control
Reduce shear and avoid degradation by removing particulates before the die
Prevent gauge variation from surging pressure or contamination
Stabilize melt streams across layers to avoid interfacial distortion
Keep density and profile shape stable by eliminating melt fluctuations
Achieve repeatable OD/ID and reduce scrap in high-tolerance profiles
Run long shifts without stopping for screen changes or cleaning
Avoid defects caused by gels, streaks, and inconsistent melt flow
Boost output up to 50% without overdriving the extruder
Reduce mechanical wear and energy consumption by offloading pressure generation
Stop chasing gauge, cutbacks, or haze from pressure swings
Melt pumps, screen changers, and melt filtration systems are not one-size-fits-all. The best solution depends on the application, contamination level, material consistency, throughput target, pressure requirements, and whether the process is running clean virgin resin, filled compounds, PVC, regrind, or heavily contaminated recycled material.
Not sure which melt pump or filtration system is right for your application? Use these interactive tools to estimate the best starting point based on your material, throughput, contamination level, and process conditions.
Melt pumps are used when the process needs more stable pressure, reduced pulsation, better dimensional control, higher throughput, or lower temperature rise through the extruder.
| Film & Sheet | Use melt pumps to improve gauge consistency, reduce die pulsation, and support higher throughput with tighter thickness control. |
| Pipe, Tube & Profile | Use melt pumps when OD, ID, wall thickness, and dimensional stability are critical, especially in PVC and high-pressure applications. |
| Recycling & Regrind | Use melt pumps to stabilize pressure and flow when processing variable recycled streams, filled blends, and reclaimed materials. |
Filtration strategy depends primarily on contamination level, material cleanliness, filler content, and whether the process can tolerate manual intervention or requires continuous operation.
| Low Contamination | Manual or simpler screen changers can be suitable for cleaner materials, lower throughput lines, or cost-sensitive applications. |
| Moderate Contamination | Continuous screen changers and systems like BRF fit applications requiring better uptime, more stable pressure, and improved handling of fillers or contamination. |
| High Contamination | Self-cleaning high-performance melt filters such as ERF and ECO are typically the best fit for recycling, post-consumer streams, and heavily contaminated materials. |
Melt pumps and filtration systems are selected based on pressure requirements, contamination level, material type, and throughput targets. Below is a general guideline based on common extrusion applications:
See solutions for melt filtration, gear pump systems, and continuous screen changers for high-quality polymer processing and recycling.
Stable melt pressure and clean polymer flow are essential for consistent extrusion. Without proper filtration and pressure control, extrusion lines can experience dimensional variation, unstable output, surface defects, rising scrap, and unnecessary wear on upstream equipment.
In many extrusion processes, the extruder is responsible for both melting the polymer and generating pressure. This often leads to pressure fluctuation, especially when running reclaimed material, filled compounds, higher throughput rates, or polymers with changing viscosity.
A polymer melt pump decouples these functions. The extruder focuses on melting, while the gear pump meters the melt precisely to the die, resulting in a more stable and repeatable process.
Polymer filtration systems and screen changers work alongside melt pumps by removing contamination before it reaches the die. This becomes especially important when processing recycled materials, regrind, or filled compounds where gels and contaminants can impact product quality.
In higher contamination environments, continuous screen changers and advanced filtration systems allow filtration to occur without stopping the extrusion line, protecting downstream equipment while maintaining uptime.
A melt pump is a precision gear pump installed between the extruder and the die. It stabilizes melt pressure and meters polymer flow more consistently than an extruder alone. This improves dimensional stability, reduces scrap, and allows higher line speeds.
Melt pumps are typically installed when extrusion lines experience pressure fluctuation, dimensional variation, or limited throughput. They are common in film, sheet, pipe, tube, profile, and compounding processes where stable melt flow is critical.
Screen changers hold filtration screens that remove contaminants from the melt stream. Melt filtration systems may include additional filtration technologies designed for high contamination streams, recycling applications, or sensitive polymers.
In many cases yes. Because the melt pump generates pressure more efficiently than the extruder, processors can sometimes increase line speed while maintaining stable melt pressure and product quality.
Selection depends on polymer type, contamination level, throughput target, melt pressure requirements, and available installation space. Many processors start by estimating potential improvements using tools like the filtration and melt pump ROI calculator.
Share your polymer, throughput, and contamination level and we will recommend the correct MAAG melt pump or screen changer for your process. We will include pricing, lead times, and installation guidance.
Prefer to start with a quick estimate? Use the melt pump sizing tool or the filtration & screen changer selector to narrow the right system based on your process inputs.
Request a RecommendationWe help extrusion teams improve melt stability, reduce scrap, and choose the right pump and filtration approach for the process, not just the catalog.
