Basic Steps for the Formation of Polyethylene Bagging sheets from HDPE Using an Extruder (photo). Lesson 1

Industrial equipment and machines have greatly reduced the complexity involved in performing chemical changes, it is no rocket science to learn how a machine is used, one with proper determination could learn how to operate any machine within a short period of time provided the machine is in good condition.
Therefore it is necessary not to be alarmed by the title of this tutorial, the steps are pretty basic.

This is an overview of the Equipment used for this process, An Extruder

STEPS
First, Obtain your feed (High Density Polyethlyene (HDPE) pellets, which comes in 25kg bags)

There are variations, each company produces its HDPE to its desired texture

You could also mix different produce to achieve your desired feed texture

Next obviously, would be switching on the machine, preparing it for heating before turning on the various components

The control box for process control and monitoring

After which would be to input the raw materials (HDPE Pellets) into the feeder

The Feeder is connected to the heating compartment where the feed undergoes conversion powered by the motor engine

These pellets are heated and drawing into filament, which are passed into the blowing component of the extruder, where Air surges through it, which expandes it to the desired width and thickness

Air capacity through the blower could be increased by connecting an air compressor directly to the blowing component

Next we adjust the width and thickness, while cooling the produce by natural convention, we achieve this by passing the formed sheets through a tower and then to the compact roller

The compact roller rolls the sheet into a fold.
One roll is usually 50kg in weight which is the weight of 2 bags of HDPE (ie)
2bags/roll.

Here is a stack of rolls

This completes the first lesson, the second will feature the cutting and sealing of the sheets into finished products.