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Precision Gratings

Product catalog summary

Overview
Fratelli Rotondi specializes in the production of optical scales and precision gratings, essential components for machine tools, measuring machines, and various operating machines. The company emphasizes the importance of engraving accuracy and raw material selection to ensure high-quality and reliable products.

Optical Scales

Glass Optical Scales: Made from float glass with a maximum length of 3200 mm, planarity of 10 µm/100 mm, and accuracy of ≤ 3µm/1000 mm. They feature chrome coating and can be customized.
Steel Optical Scales: Made from tempered AISI 420 with a maximum length of 100 meters, planarity of 3 µm/100 mm, and accuracy of +/- 3µm/1000 mm. Available in various dimensions and pitches, with standard or customized patterns.

Precision Gratings
These are designed based on customer needs and are used in sectors such as aerospace, microscopy, optoelectronics, and biomedical sciences. The gratings are produced in a controlled environment to ensure high accuracy and quality.

Substrate and Surface Treatments
Various substrates like float glass, borofloat quartz, and others are used. Surface treatments include high to low reflective chrome, anti-reflection coatings, and more. Dimensions can be customized, with pattern accuracy up to +- 0.001 mm and minimum pattern dimensions of 0.002 mm.

Applications
The products are applicable in CNC machines, positioning systems, optical vision, electronic industry, and more, supporting advancements in new technologies.

Catalog excerpts

Follow us on social networks FRATELLI ROTONDI 20025 Legnano (MI) ITALY - Via F.lli Bandiera, 36 - Tel. +39 0331.442074 - Fax +39 0331.453863 www.rotondi.it - [email protected]

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Scales and Reticules Precision Division

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Optical Scales The optical scales are the main components for machine tools, measuring machines and general operating machines. This is the system that defines the correct axis translation. Together with the integration of his own electronic system the customer is able to build up a complete measuring system. The engraving accuracy of the pattern on the substrate defines the accuracy of the whole machine. Our Company is equipped with metrological rooms with controlled environment conditions. We are able to produce incremental, coded and absolute scales both with standard and customized pattern....

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In order to ensure the highest accuracy and quality results we produce our product in a metrological laboratory with temperature and humidity controlled environment. For over 40 years our laboratory is in charge to design and produce calibration gratings, photomasks, Test Target and Collimators. In the last years these products became fundamental for the new technologies. The main application sectors are: - Aerospatial; - Microscopy; - Optical Vision; - Optoelectronics; - Electronic industry; - Biomedical and life science; - Sport and defence; - Metrology; - Geodesic; - High resolutions display;...

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