Finishing Glass- ELKA Vitro
Glass is one of the oldest materials which people use and process. The single term “glass” stands for a multitude of amorphous structures of various compositions which find a broad spectrum of application. By virtue of its individual and unique properties, this material is modern, innovative and is always being reinvented for applications in all areas of life.
To fully exploit these properties, glass is processed and finished in a targeted way. Here, abrasives and polishing agents are also used. Our long-standing wealth of expertise enables us to meet and even exceed individual customer requirements as well as generate new application possibilities. Elka Vitro glass polishing wheels have matured into leading edge products.
Glass Edge Processing
Flat glass, also known as float glass, is produced in a continuous process from mol- ten glass. It is used in a multitude of everyday areas and we come across it all the time. To highlight design and colour features, particular attention is paid to the edges, which are ground and polished.
Here, we offer our customers tools for individual processing – to produce matt, satin or high-gloss glass surfaces. Elka-Vitro tools provide quality and efficiency on all customary single- and double-edge grinding machines for high-quality and cost-efficient processes.
When processing using peripheral wheels, we offer optimized product specifications for achieving perfect edge gloss as well as long tool life and minimized run-in behaviour. Complementing pre-processing operations, Elka-Vitro wheels provide the ultimate tool for grinding and polishing processes.
Edge Coating Removal
To minimize energy losses in the window and facade area, low-e glass is used. The emission reduction is achieved by coating the float glass. Thinly applied metal layers need to be removed from the edge of the functional glass, however, in order to ensure reliable bonding of several glass panes and to prevent corrosion of the metal coating. Our wheels for edge coating removal can be used on all suitable manual and automatic machines, and they achieve a clean and reliable result.
Based on empirical values from glass processing, we offer not only standard wheels (cup and peripheral wheels) but also special geometries. The established standard specifications can be adapted to individual processes. The wheel shape can be defined by the customer and is produced according to drawing.
Distinction between Single or Double-Sided Machines
In single-sided polishing, the glass, which is usually in a vertical position, is held between 2 rubber chains and transported across the polishing wheels. These wheels come into contact on one side with the glass pane. The process is carried out with water cooling.
Depending on the machine, there are 1 to 4 polishing stations which are equipped with different tools.
Double-sided grinding machines are mostly arranged in one angle combination and are used for larger volumes, e.g. in the furniture industry, in façade construction and for solar technology, etc.
The grinding pressure can be minimised using this machine type in contrast to single-sided machines. However, even in single-sided machines, the pressure required by ELKA polishing wheels can also be reduced compared to competing tools on the market. In general, 80% of ELKA Vitro applications require around 50-60% of the pressure of that used by competitive tools.