The machine using material of PP\PE as  raw materials which should been heated\extruded\cooled\cut & drawn to the flat fibers. The flat fibers would be rolled on the bobbins for weaving the sacks by the circular loom. The flat fibers can be drawn by the materials is including of the reclaimed materials, powder or pellet materials and the mixed materials of them. In this case, the suitable range of the materials has been extended more. Then machine unit can save the power consumptions. It's quite convenience for operating & maintenance of the machine unit.
The cylinder & screw of the extruder are made by alloy steel of 38CrMoAlA.After nitrogenation treatment; its hardness is much higher than HV950.
The extruder and drawing devices are controlled by step less speed charge device. Since all the drawing rollers had been treated by electroplating with the hard Chromium, so their service lives had been extended much longer.