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Technical glassblowers

The majority of the equipment manufactured by the glass apparatus manufacturer is required in the chemical, pharmaceutical and research industries. Since these sectors of the economy are not particularly susceptible to crises, glass equipment will continue to be needed in the future. Glass flows, that's what makes it so unpredictable. The automation of complex work steps and equipment is only partially possible. But the experienced glass apparatus builder knows his material. He not only reacts, no he acts. He estimates what is needed to manufacture the apparatus.

The material glass is resistant to most chemicals and provides insight into every reaction. From filigree electrodes, small test equipment to large pilot plants, the glass apparatus manufacturer manufactures everything. This includes test tubes at most at the beginning of the first year of apprenticeship. During the three-year vocational training, the future glass apparatus manufacturer gets to know the practical and theoretical basics of glass processing.

Vocational training

Contents and procedure
The trainees learn, for example, in the 1st year of training

The trainees learn, for example, in the 1st year of training

  • how glass can be distinguished according to its chemical composition, type and use e.B table torches and hand blowers can be used
  • such as glass tubes and Hollow glass bodies are mechanically separated and thermally blasted
  • what to consider when pulling tips, narrowing and centering glass tubes
  • how tips and pipes are melted down
  • how tensions in the glass are controlled
  • what function the usual measuring and testing equipment have
  • such as scale, sliding gauge, micrometer, etc. are used

in the 2nd year of training

  • how vapour and pressure compensation pipes are to be applied to glass bodies
  • what to consider when blowing vitreous bodies into a mold
  • how tap attachments are to be manufactured
  • how gas scrubbing and spray bottles, drip and separating funnels as well as Liebig and ball coolers are manufactured
  • what needs to be taken into account when bending glass tubes

in the 3rd year of training

  • how other materials (plastic, metal, glass-ceramic) are used in glass apparatus production
  • how metals are melted into glass tubes
  • what to consider when inserting side necks on pistons
  • how to adjust outlet openings with tungsten needles
  • how glass apparatuses are tested for dimensions, shape, volume and position
  • which defects semi-finished products may have and how they affect processing



After completing vocational training, the profession offers, among other things, the following opportunities:

Manufacture of glass apparatus and glass appliances for research, technology and industry, but also utility or art objects. This is done in the handcrafted individual production, but also in the production of small series.



  • preparatory work (creation of drawings, selection of glass locations, provision of source material
  • Processing and processing of glass tubes, glass rods and prefabricated parts after heating mainly by hot forming such as bending, expanding, pulling, constricting
  • Connecting the prefabricated parts to apparatus and devices according to drawings
  • Further processing of the manufactured apparatus and apparatus, e.B. by evacuation, grinding, silvering
  • Melting of metal threads or etching for attaching scales and inscriptions after measuring the volume
  • Repair of defective glass apparatus and devices


Work equipment, tools and material

among other things:

  • technical drawings
  • Rods, tubes, bends, T-pieces and transition pieces of borosilicate glass or other types of glass, metals
  • Hand blower, burner, glass lathe, vacuum system
  • Glass knives, drivers, constricting sheet, squeeze tongs, metal stitches, tweezers
  • Measuring instruments and tools
  • Coolers, pistons, funnels, titiers, balls, hollow glass bodies




  • Industrial or craft enterprises
  • Laboratory glass shops
  • Laboratories, research institutions



Continuing vocational trainingQualification and specialization opportunitiesParticipation in courses, courses or seminars, e.B. about VDE - safety, testing and protection regulations, training of training, basic IT knowledge, hydraulics, pneumatics, environmental protection, materials and warehousing

Advanced training (according to appropriate professional practice)

  • Master glass apparatus builder or industrial master in the field of glass
  • Technician specialising in glass technology
  • Technician for Business Administration