Arc outside digital caliper – SA299

The arc outside digital caliper is a measuring instrument designed for workshop and quality control applications where it is necessary to quickly and reliably determine radii and circular arcs.

Thanks to the jaw geometry specifically designed for contact on curved surfaces, it allows accurate radius measurements even on components where traditional calipers are not suitable, making it particularly useful for inspections of radii and circular arcs.

Manufactured in stainless steel, it guarantees robustness and long-term stability even in continuous use. The LCD display provides a clear and immediate reading of values.

The 0.01 mm resolution and mm/inch conversion allow fast and accurate radius measurements, improving dimensional inspection reliability compared to traditional methods based on templates or visual comparisons.

Thanks to its dedicated configuration, this caliper is particularly suitable for inspections on components where radii and circular arcs must be verified accurately, ensuring greater objectivity and repeatability of measurement.

Applications

• Radius measurements
• Circular arc measurements
• Dimensional inspections on curved surfaces
• Quality control in workshop and production

FAQ – Arc outside digital caliper

When should a caliper for radius measurement be used?
When the inspection involves radii or circular arcs and a traditional caliper cannot provide correct contact on the surface being inspected.

What is the advantage of a radius caliper compared to templates or visual inspections?
It provides a direct numerical measurement, reducing the subjectivity typical of visual comparison methods.

On which components is it most commonly used?
It is commonly used on components with curved profiles, fillets, curved surfaces and parts where the radius is a functional dimension to be inspected.

What is the advantage compared to a standard caliper?
The dedicated jaw geometry allows measurements on curved surfaces where a traditional caliper is not suitable.

Can it also be useful in production as well as in quality control?
Yes, it is useful both in production and quality control when the radius must be checked quickly and repeatedly.

For which inspections is it most commonly selected?
For radius inspections, circular arc verification and dimensional inspections on curved surfaces.

Is it suitable for repetitive inspections on batches of parts?
Yes, especially when the same radius must frequently be checked on identical or similar components.

Why choose a dedicated radius measuring instrument?
Because when the radius is a critical dimension, a dedicated instrument allows more direct and consistent inspections according to the geometry of the component.

In which industrial contexts is it most commonly used?
It is commonly used in mechanical workshops, quality control and production when components include curved profiles or fillets to be inspected.

Can it improve inspection repeatability compared to non-instrumental methods?
Yes, because it allows verification based on an instrument reading instead of a simple visual comparison.