NOC 9422 – Plastics processing machine operators



Plastics processing machine operators set up and operate plastic mixing, calendering, extruding and moulding processing machines used in the manufacture of plastic parts and plastic products. They are employed by plastic products manufacturing companies.

Mobility among the various operators in this unit is possible.

Progression to supervisory positions is possible with experience.

Main Duties

Mixing machine operators perform some or all of the following duties:

  • Weigh resins, colorants and other chemicals according to formula
  • Place weighed materials in mixing machine and operate machine to blend plastic and other chemicals to a specified consistency or viscosity
  • Monitor operation, regulate material supply and add chemicals and colorants to mixture
  • Operate controls to regulate temperature, speed and other processing conditions
  • Unload mixture into container or conveyor for further processing
  • Maintain and perform minor repairs on machinery as required
  • Maintain inventory of material and clean working area.

Calendering process operators perform some or all of the following duties:

  • Set up and operate calender machines which transform dough-consistent plastic mass into continuous sheets or films of specified thickness
  • Troubleshoot, maintain and make minor repairs to equipment and adjust calender rollers for production line change
  • Monitor quality of material produced
  • Maintain inventory of material and clean working area.

Extruding process operators perform some or all of the following duties:

  • Set up and operate one or more extruding machines which extrude plastic composites products through a nozzle or die
  • Change dies on extruding machines according to production line change
  • Troubleshoot, maintain and make minor repairs to equipment
  • Monitor quality of material produced
  • Maintain inventory of material and clean working area.

Moulding process operators perform some or all of the following duties:

  • Set up and operate one or more moulding machines which mould plastic products according to specifications
  • Change moulds and adjust equipment for production line change
  • Troubleshoot, maintain and make minor repairs to equipment
  • Monitor quality of material produced and adjust machine settings as required
  • Follow formulation card to mix ingredient batches for injection moulding process
  • Maintain inventory of material and clean working area.

Employment Requirements

  • For all operators in this unit group, completion of secondary school is usually required.
  • Several years of experience as a helper, tender or packer in the same company may be required.
  • Completion of a statistical process control (SPC) course may be required.
  • Completion of courses in hydraulics, pneumatics and electronics systems may be required for moulding process operators.
  • On-the-job training is provided.

All Titles

  • arch cushion press operator – plastic manufacturing
  • bag machine operator
  • bag-making machine operator – plastic manufacturing
  • bakelite mixer operator – plastic manufacturing
  • banbury mixer operator – plastic manufacturing
  • banbury operator – plastic manufacturing
  • blender operator – plastic manufacturing
  • blow moulder operator – plastic manufacturingblow moulding machine operator
  • blow moulding machine operator – plastic manufacturing
  • blow-moulding process operator – plastic manufacturing
  • cake press operator – plastic manufacturing
  • calender operator – plastic manufacturing
  • calender operator, multi-roll – plastic manufacturing
  • calender wind-up tender – plastic manufacturing
  • calendering machine tender – plastic manufacturing
  • caster – plastic manufacturing
  • casting room operator – plastic manufacturing
  • cellophane bag machine operator – plastic manufacturing
  • cellophane bag maker – plastic manufacturing
  • cellophane making worker – plastic manufacturing
  • coagulator, plastics
  • compounder, plastics
  • compounder, plastics and plastic products
  • compression moulder – plastic manufacturing
  • encapsulator – plastic manufacturing
  • extruder operator – plastic manufacturing
  • extruder operator, plastic pipes
  • extruding machine operator – plastic manufacturing
  • extrusion blow moulding operator
  • extrusion machine operator – plastic manufacturing
  • fibreglass machine operator – plastic manufacturing
  • fibreglass moulder
  • fibreglass-spraying machine operator
  • flatbed press operator – plastic manufacturing
  • foam plastic-producing machine operator
  • foam plastic-spraying machine operator
  • footwear presser – plastic manufacturing
  • gel coat sprayer operator – plastic manufacturing
  • grinder operator – plastic manufacturing
  • heat-sealing machine tender – plastic manufacturing
  • imprinting machine tender, plastics
  • injection blow moulding processing operator
  • injection molding set-up operator
  • injection moulder – plastic manufacturing
  • injection moulder operator – plastic manufacturing
  • injection moulding operator – plastic manufacturinginjection moulding operator
  • injection moulding processing operator
  • injection operator – plastic manufacturing
  • injection plastic moulder
  • injection-moulding machine operator – plastic manufacturing
  • laminating machine tender – plastic manufacturing
  • lead operator, blow-moulding machine – plastic manufacturing
  • lead operator, injection-moulding machine – plastic manufacturing
  • linoleum floor tile backer
  • linoleum floor tile calender operator
  • machine operator – plastic manufacturing
  • machine operator – plastics processing
  • machine set-up operator – plastic manufacturing
  • mannequin moulder – plastic manufacturing
  • mixer operator, solutions – plastic manufacturingsolution mixer operator
  • mould setter, plastic
  • moulder operator – plastic manufacturing
  • moulder, compression – plastic manufacturing
  • moulder, fibreglass
  • moulder, plastic mannequins – plastic manufacturing
  • moulder, printing rollers – plastic manufacturingprinting roller moulder
  • moulding machine operator, injection – plastic manufacturing
  • moulding operator, injection – plastic manufacturing
  • multiple extruder operator – plastic manufacturing
  • neoprene sprayer operator – plastic manufacturing
  • operator, blender – plastic manufacturing
  • operator, fibreglass-spinning machine – plastic manufacturing
  • operator, fibreglass-spraying machine
  • operator, flatbed press – plastic manufacturing
  • operator, foamed-plastic-producing machine
  • operator, gel coat sprayer – plastic manufacturing
  • operator, injection moulding – plastic manufacturing
  • operator, moulder – plastic manufacturing
  • operator, pipe extrusion machine – plastic manufacturing
  • operator, plastic footwear moulder
  • pipe extrusion machine operator – plastic manufacturing
  • plastic bag machine operator
  • plastic bag maker operator
  • plastic centrifugal caster
  • plastic coagulation operator
  • plastic coagulator
  • plastic compounder
  • plastic extruder operator
  • plastic film roll inspector
  • plastic footwear moulder operator
  • plastic mannequin moulder – plastic manufacturing
  • plastic mixer operator
  • plastic mould setter
  • plastic moulder, compression
  • plastic moulder, injection
  • plastic pipe production worker
  • plastic windshield processor
  • plasticator operator
  • plastic-extrusion operator
  • plastic-fibre-extruding machine tender
  • plastic-film extrusion machine operator
  • plastic-pipe production machine operator
  • plastic-pipe-extruder operator
  • plastics and plastic products compounder
  • plastics machine operator
  • plastics moulder
  • plastics press operator
  • plastics processing compounder
  • plastics strainer operator
  • plastics-blending machine tender
  • plastics-moulding machine operator
  • plastics-moulding machine setter
  • plastic-spreading machine operator
  • plastics-processing machine setter
  • preform machine tender – plastic manufacturing
  • press operator – plastic manufacturing
  • press operator, plastics
  • pressure-sensitive coater operator – plastic manufacturing
  • printing roller moulder – plastic manufacturing
  • production machine operator, plastic bags
  • production machine operator, plastic pipes
  • production worker, plastic pipes
  • profile extrusion operator
  • profile extrusion processing operator
  • profile extrusion set-up operator
  • roll operator – plastic manufacturing
  • rotational moulding operator
  • setter, plastics-moulding machine
  • setter, plastics-processing machine
  • set-up operator, machine – plastic manufacturing
  • sheeter operator – plastic manufacturing
  • shredder operator – plastic recycling
  • shredding machine operator – plastic recycling
  • skin-former machine tender – plastic manufacturing
  • slitter operator – plastic manufacturing
  • solution mixer operator – plastic manufacturing
  • solvent mixer operator – plastic manufacturing
  • sprayer, gel coat operator – plastic manufacturing
  • synthetic marble production worker
  • tender, heat-sealing machine – plastic manufacturing
  • tender, laminating machine – plastic manufacturing
  • tender, plastic coagulating tank
  • tender, preform machine – plastic manufacturing
  • tester, plastic film rolls
  • thermoforming operator
  • vaporizer – plastic manufacturing
  • wash line operator – plastic recycling


  • Labourers in rubber and plastic products manufacturing (9615)
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  • Supervisors, plastic and rubber products manufacturing (9214)


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