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Home > News > Extrusion

PSI-Polymer Systems: Gear pump enables sustainability in extrusion process

Source：Adsale Plastics Network Date ：2024-02-06 Editor ：RC
Copyright： This article was originally written/edited by Adsale Plastics Network (AdsaleCPRJ.com), republishing and excerpting are not allowed without permission. For any copyright infringement, we will pursue legal liability in accordance with the law.

Gear pump in extrusion line are proven off-the-shelf technology that can bring significant sustainability benefits, allowing processors to reduce carbon footprint while improving efficiency and productivity, according to PSI-Polymer Systems.

 

The gear pump has emerged as an eco-friendly solution proven to reduce overall energy load for the extrusion line while minimizing the amount of material required for the product, said Don Macnamara, general manager of PSI-Polymer Systems Inc.

 

This allows for 100% use of regrind without compromising output consistency and minimizing scrap from start-up or off-spec dimensions, he added.


PSI Polymer_Gear Pump_480.jpg

Gear pump in extrusion process brings sustainable benefits.

 

Lower energy consumption

 

By taking over pressure-generating function for the die, gear pump allows extruder to process the same, or even more volume at a lower RPM, meaning less energy is required to produce the same volume of output.

 

Another eco-benefit of lowering the head pressure is reducing extruder motor load, which leads to significant long-term energy savings.

 

Reducing backpressure-induced shear heating, gear pump also reduces the demand for additional cooling during extrusion process. This leads to further energy savings.

 

Less feedstock and maintenance required

 

Gear pump runs a tighter tolerance which leads to the use of less polymer per product length.

 

Lower head pressure also minimizes wear and tear on the screw and barrel. The load of the thrust bearing and drivetrain is also reduced, which boosts the B10 life of the bearing and reduces the need for gearbox rebuilds. These all result in lower carbon footprint.

 

Minimizing scrap and using regrind

 

Consistent die pressure holds wall/gauge variation within a tight tolerance. Running true to the lower end of the dimensional specification eliminates scrap caused by out-of-spec production (over/under).

 

Gear pump also involves inclusion of reclaim. It allows 100% use of regrind without compromising output consistency.


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