Injection molding in plastics processing

Injection moulding

For everyday products. Complex, end-to-end systems or individual units for the automotive, electronics, household goods and healthcare industries, and for cleanroom production.

Process description

Injection moulding is a discontinuous, multi-stage manufacturing process for producing parts from both thermoplastic and thermosetting plastic materials. 

Typical end products

High volume end-consumer products. For example: caps, closures, automotive parts, and packaging. It is a part manufacturing process and is not based on lot sizes i.e. weight. 


The raw material is fed into a heated barrel, and with screw is mixed and forced into a mould cavity. Once the plastic has cooled and hardened the mould opens and the part is ejected. 

Typical materials being processed

Most granular raw and compounded polymers, including all thermoplastics, some thermosets, and some elastomers. In addition regrind materials and additives. 

Description of motan system/equipment used

Complex centralised or stand alone drying, conveying, dosing & mixing systems. Typically for the automotive, electronics, household-goods, medical and packaging industries. 

Typical dosing & mixing units

Additive dosing units (MINICOLOR, COLORBLEND) or Gain-in-weight blenders (GRAVICOLOR, ULTRABLEND).