Compounding Process

Through the process of extrusion, compounding PowderPlast can extrude various types of plastic polymers. This process allows for the introduction of all the different variations of additive packages, e.g.

  • Powder Pigment colours
  • Fire Retardants
  • Ultra Violet inhibitors
  • Heat Stabilizers
  • Minerals
  • Processing Aids
  • Polymer Blends
  • Others, etc

The end product will contain all the additives and colour packages as requested by the end user.

The compounded plastic powder, where applicable, is packaged into bags and onto pallets to the customer’s requirements.

Pulverising Process

The pulverising process (also known as attrition dry milling) of plastic polymers is a process of reducing the granular size of a polymer.

The material concerned in the form of a colour compounded or natural pellet is fed into a cutting chamber via a hopper and onto a vibrating chute.

Size reduction of the plastic pellets takes place by the cutting and shearing action between a rotating and a stationary cutting disc. The cutting blades are either in segmented or disc/plate form.

The plastic powder is sucked from the cutting chamber via a flu chute into a cyclone which via a rotary airlock then conveys the plastic milled powder onto a wire meshed shaking screen chamber.

The pulverised powder is sorted by the screens and sifted into the predetermined particle size.

Finally the typical pulverised LDPE, LLDPE, HDPE, PP, PVC, EVA, etc. is readied for shipment in bags and palletised.