Depending on form, production volume, and quality requirements reflectors can either be spun by hand or on CNC-controlled automatic spinning lathes. The spinning form is produced on the basis of light engineering data and determines the form and the surface structure of the reflector. During spinning the shape of the spinning form (and any possible pattern) is transferred in a rotary movement to the inner surface of the material or of the reflector.
The next production stage is realised on eccentric and hydraulic presses or on pneumatic tools. The presses / tools are used to punch the required openings for luminous elements or to emboss special patterns onto the reflector.
We have an automatic anodising plant, but brightening (chemical brightening by means of the so-called Erft Werk Process) is done manually. All other process steps such as rinsing, anodising, possibly colouring, sealing and drying are realised on process-controlled machines. This refinement process results in a corrosion-resistant surface which is fast to handling and wiping with no compromise as regards the brightness of the reflector.