Top screw speed is the top motor speed divided by the reduction ratio, which is determined by the gear box and (sometimes) pulley sets. In most extruders it is somewhere around 100 rpm. One exception ...

The global demand for plastic pipes has grown exponentially and, over the next few years, is set to increase for a large variety of applications: from water and gas supply networks, rainwater drainage ...

First, my monthly reminder: There are no toxic plastics, none of them. Our materials are safe and do far more good for the environment than harm. When you meet anyone who thinks otherwise, try to find ...