History of the company

CHROFF Kunststofftechnik GmbH was acquired in 1999 through a management buyout by Stettler Kunststofftechnik GmbH through Gerhard Hoffmann and Robert Christmayr. The company name is a merger of the family names of both owners. Goal of the company is the to produce high-quality plastic parts and assemblies for the customers. Today we can say with pride: We succeeded. We have established ourselves as a competent full service partner for plastics production.

Company history at a glance:


  • Gerhard Hoffmann and Robert Christmayr founded CHROFF Kunststofftechnik GmbH in Bamberg-Kramersfeld in the Kronacher Street 54.
  • The Managing Director is Gerhard Hoffmann.
  • Corporate objective: Production of plastic parts and assemblies for various branches of industry.


  • Entry of Robert Christmayr as a further Managing Director.



  • Start of the 3 component injection moulding.


  • Beginning with the assembly of complex kinematic assembly groups.
  • Expansion of the machine park by an injection moulding machine with a clamping force of 3,200 kN (320t).


  • Continuous expansion and modernisation of the machine park.


  • Commissioning of a tactile measuring machine for fully automatic 3D measurement.