By Tobias Huber

HFS Industrial would like to announce a design change in the product series 991F. The part number for the new part will be 991S500, replacing 991S05.

Advantages of the new series are:

  • Improved optical design
  • Three locked positions of the wing
  • Fewer exposed components
  • Fewer gaps

During the changeover period, there may be some mixing with remaining stock, which should not cause a problem, as product form and fit have not changed.

For more information, please see our catalogue.

If you would like to talk to us about the new 991S500, please contact us at