We are now bringing most of the extruder component manufacturing in-house. Our first project has been to increase the performance of our screws, by creating a two-stage screw. In preliminary tests, this screw increases the barrel pressure and extrusion rate speed. It achieves this by allowing more material into the feeding zone and then compressing the material as it moves along the barrel. generating heat and pressure.
The next step is to manufacture a mixing screw.
http://www.noztek.com/product/replacement-barrel-and-screw/