15 - 16 November 2023
14:00 - 17:30 CET
Eindhoven (NL) and/or Online

As the fined glass melt exits the furnace through the throat, it enters the conditioning area. For many glass products such as containers, glassware, or glass wool, thermal conditioning is achieved in the forehearth. The goal of the forehearth is to deliver a homogeneous glass at the right temperature to the outlet. Forehearths can also be used to produce colored glass by mixing frits directly into the melt. The glass delivery must be well-controlled in stable operati on, before and aft er a job change.

This course gives an overview of the different parameters that can be used to control a feeder in an optimal way.


  •  Thermal transfer and temperature homogeneity
  • Gas and electrical boosting
  • Pressure and safety
  • Devitrification at the cold spots
  • Mixing and coloring
  • Equipment and measurement devices
  •  Control and automation
Sjoerd Stelwagen
Sjoerd Stelwagen studied Chemical Engineering at Eindhoven University of Technology. Directly after his study he started as a Technical Specialist at the Furnace department of Ardagh Glass in Dongen, The Netherlands, where he later became Batch and Furnace Manager. He then evolved as EHS manager for the Benelux plants. With more than 16 years of practical glass making experience, he joined Celsian in 2021 to work as a project manager and trainer.
Price The price per participant is 1.095 EUR. This is the equivalent of 2 tons of glass.

The 6th participant from the same company can join FOR FREE. Prices exclude tax and duties.
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