Elements controlled by a QMS certificates
The quality of rubber coverings is influ-enced by many factors: the quality of the elastomer, the selection of an optimal blend used for individual functions of rollers, optimal technology, high standard of tech-nical equipment, responsible and quality work, and, finally, the quality of the roller surfaces. All elements are controlled by a certificate QMS under EN ISO 9001:2000. In our company, we use computer control-led grinding machines which are specially developed for grinding rubber rollers and flexographic printing forms enableing us also to produce crowned rollers according to the requirements of our customers.
Traditonally hand-made grooves on rollers have been replaced by special computer controlled equipment. It enables us to quickly grind or mill specified grooves or threads (axial, radial, with any pitch in both directions, etc.).
More and more customers require great precision in the grinding of rollers that certifies the values measured for the diameter, axial runout and conici-ty. These measurements are carried out by means of contactless laser equipment linked to a computer and printer.
Perfect surface conditions
The quality of the surface, especially the smoothness after the grinding and polishing of rollers, is an essential condition for flexographic, gravure and offset printing. By means of a Ra-meter we are able to measure the quality of the surfaces of rollers and provide documentation accordingly.
Surface press control
We check the surface of printing rollers and especi-ally sleeves on a proofing press of our own design that allows us to precisely test the total surface design under real printing conditons.