Our website uses functional cookies. When remaining on this site, you are explicitly agreeing to the use of those cookies.

Improved coating quality at Coil Coating



We were given the following specifications by a leading steelmaker for an upgrade project:

  • Objective: Improve the quality of coil coating by converting from analog to digital speed control
  • Task: Replace legacy tacho generators monitoring speed at drive motors of the coating rollers
  • Special characteristics: Potentially explosive gas atmosphere (Zone 2)

Huebner Solution

Specialists from Johannes Hübner Giessen document the installation situation (measure) and install the encoder on site. New Ex FG 40 incremental encoders replaced the outdated tachos to provide the following advantages:

  • ATEX and IECEx certified for Gas Zones 1 and 2
  • Explosion proof, heavy-duty casing (type of protection: d)
  • High signal quality, 1024 pulses
  • Large bearings ensure a long service life
  • Flange with 30°increments offers variable attachment options
  • Flexible on-site cable connection thanks to removable terminal box cover