Profession glass forming machine operator

Glass forming machine operators operate and maintain machines that press or blow molten glass in moulds to form or shape products, such as neons, bottles, jars and drinking glasses. They set up and adjust machines, and weigh, measure and check production samples to check conformity to the set specifications.

Would you like to know what kind of career and professions suit you best? Take our free Holland code career test and find out.

Personality Type

  • Realistic / Conventional


  • Blow moulding

    The three main techniques to create hollow plastic and glass parts, namely extrusion blow molding, injection blow molding and injection stretch blow molding.


  • Tend glass forming machines

    Tend automatic glass forming machines by setting them up and operating them in order to press, blow, or spin gobs of molten glass in moulds having end-products such as bottles, containers or cathode ray tubes.

  • Prevent casting adhesion

    Prevent the casting sticking to the moulds by brushing the mould with oil, hot wax or graphite solution, according to the specification of each casting components.

  • Measure materials

    Measure the raw materials prior to their loading in the mixer or in machines, ensuring they conform with the specifications.

  • Inspect glass sheet

    Inspect the drawn sheets of glass in order to detect any flows such as blisters or stones, signalling the defective glass sheets.

  • Observe products' behaviour

    Observe the color of fires and pyrometric cones under certain processing conditions such as high temperature.

  • Clean moulds

    Clean the mould using water, grease or oil, washing and scraping them by hand.

  • Optimise production processes parameters

    Optimise and maintain the parameters of the production process such as flow, temperature or pressure.

  • Observe glass under heat

    Observe the characteristics of the glass already set into the kiln so that cracking, warping or blistering is avoided.

  • Adjust feeder tubes

    Use wrenches to install and adjust the tubes that carry the gob to the moulds.

Optional knowledge and skills

mechanics construct moulds maintain equipment perform product testing check quality of raw materials coating substances consult technical resources form moulding mixture tend lehr monitor end-product drying process inspect quality of products manage waste form bed for glass maintain mould parts tend kiln for glass painting monitor environmental parameters record production data for quality control tend coating machine monitor conveyor belt remove defective products operate drying blowers adjust burner controls