Various surface qualities are required in the printing and foil industry. Rough matt chrome surfaces have an optimal grip, which improves the conveyability of feed rolls. If, on the other hand, you want a high-gloss finish, we can work the hard chrome surface right up to a mirror finish. In general, the hard chrome layer is characterized by its anti-adhesive properties, which prevent “sticking” or “caking” on the rollers.
The optimum surface quality
Matt hard chrome
In order to achieve a structured surface, the workpieces are blasted before the coating process. The blasting creates the specified peak-to-valley height. After the surface finishing, the components have a structured hard chrome layer and stand out visually through a matt surface. Via the defined peak-to-valley height the grip of feed rollers can be controlled for example. Learn more about our blasting processes.
Mirror finish
With the Superfinishing procedure, a surface quality up to a mirror finish can be created. Very fine Finish tapes (up to 3 µm) are used for this purpose. Mirror finish is required if the use of the component requires an absolutely homogeneous, clean and smooth surface. Learn more about the superfinishing process.
Properties of the hard chrome layer:
- Layer Thickness: 0.003 bis 0.500 mm
- Hardness: > 850 HV 0.1
- Roughness: Rmax < 0.1 μm to Rz 70 μm
- Lead and cadmium free (RoHS compliant)
Typical components of the printing and foil industry that are hard chrome-plated
Examples from the foil industry
Mirror rollers, mirror screws, engraved rollers, spiral mandrel distributors, embossing rollers, heating and cooling rollers, drive rollers, nozzles and mandrels
Examples from the printing industry
Printing and plate cylinders, dampening distribution cylinders, duct rollers, metering rollers, feed rollers
Learn more about our hard chrome processes.
Dimensions of your components:
- Vertical chrome plating: ⌀ 1300 x 4700 mm or 8000 mm with rotation of the workpiece
- Horizontal chrome plating: ⌀ 60 x 6500 mm
- Forms: 1700 x 1500 x 1300 mm
- Weight: 5000 kg
Our core processes
Electroless nickel
For hardness, wear resistance and very high corrosion protection with even layer thickness distribution.
Hard chrome
For corrosion protection, tribological properties and a particularly high wear resistance against mechanical stress.
Precision grinding
For dimensional accuracy, roughness depth and bearing ratio depending on the requested surface quality.
Betz-Chrom – your partner for strong parts
In the sense of a trustful partnership, you will receive highly qualified technical advice from us that is tailored to your needs. We combine 70 years of experience in surface technology with an innovative and inquisitive corporate culture. Our quality awareness, our occupational health and safety management as well as our measures for environmental protection and energy saving are audited and certified according to DIN standards. As an on-schedule partner with high quality level, we constantly aim to find the optimal process solution for you.
