The DIACHECK-CT series digital radius and diameter gauge provides direct, instantaneous readings of internal or external radii or of diameters in a range from 100 to 10000 mm.
The high-precision digital radius and diameter gauge of the DIACHECK-CT series is designed to measure the radius of curved objects such as tubes, profiles and calenders quickly and precisely.
This measuring instrument enables measurement of the radius of curvature or of the internal or external diameter of a given part using the three-point circumference measurement method.
The DIACHECK-CT is a practical, precise and, above all, easy-to-use digital instrument. Simply place the arch gauge on the surface of the object to be measured and the radius of curvature immediately appears on the display.

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Problem …..
Measuring the radius of curvature of an object using only part of it, because of limited available space, the large size of the object or because the object has a partial profile and the radius cannot be derived by measuring its diameter.
Solution …..
Using a DIACHECK-CT series radius gauge enables immediate measurement and comparison of the correct bending or calendering of wooden parts for the furniture sector.
The DIACHECK-CT arch gauge is an easy-to-use instrument that gives the measurement result immediately. The measured value can be used to verify the correct radius of curvature or for a comparison between two or more objects.
A Bluetooth transmission system also allows the data to be transferred from the instrument to an external device, thus enabling the production of test reports or statistical production analysis.
Products used …..
DIACHECK-CT series arch gauges
- Portable radius, diameter and profile gauges
- Robust and lightweight for use on the production line
- Measurement immediately available on the display, with Bluetooth transfer to external devices
- Available in many models and configurations
Further information …..
Arch gauges are an indispensable instrument for measuring objects with curved geometry such as tubes, sheet metal, glass and profiles. Their technology makes it possible to calculate the curvature of such materials with extreme precision.
Using these instruments, professionals and enthusiasts in fields such as mechanical engineering, steelwork, joinery, glass production and furnishing elements can create objects and parts with perfectly calibrated, uniform curves, guaranteeing a high-quality end result.
Arch gauges make it possible to determine the precise curvature of every single tube or profile, avoiding problems during positioning and installation.
Sheet metal and glass also require particular curvature, especially in architecture and in the furniture industry.
Arch gauges allow curvature to be measured precisely and uniformly, avoiding the risk of chipping or breaking the material during processing and positioning.
These instruments also make it possible to calibrate the curvature of sheet metal and glass perfectly, guaranteeing an end result that is both attractive and functional.
Lastly, arch gauges are widely used in the metalworking industry for bending metal profiles. They allow the most accurate possible measurement, avoiding errors that could compromise the stability and functionality of the products made.
What is more, the measurements taken with arch gauges make it possible to guarantee uniform curvature throughout production, assuring customers of an excellent end result.
Frequently asked questions
It is the measurement of the radius or diameter of a curved object by placing the instrument on its surface: the DIACHECK-CT arch gauge applies the three-point circumference method and shows the value on the display.
From 100 to 10000 mm, for internal and external radii and diameters, using the different measuring arches.
Yes: the measurement is taken on a portion of the object, even if it is large or has a partial profile, without removing it from the machine or its seat.
Yes: Bluetooth transmission allows the measurement to be sent to an external device for test reports and statistical production analysis.
Mechanical engineering, steel fabrication, joinery and furniture, production of glass and rolled sheet metal: wherever curvatures of tubes, profiles and products need to be verified.
Contacts & Information
Contact for general information : info@roder.it
Machine Vision Division of RODER : www.rodervision.com
RODER Instruments Division : www.innovacheck.com
More about RODER : about us
The information contained in this website is provided for information purposes only. Although it has been prepared with the greatest care, it does not constitute a contractual offer or a binding commitment to supply. It may contain transcription, translation or typographical errors. For precise and up-to-date information, please contact our company directly.
Note: Some images on this website have been intentionally generated using artificial intelligence (AI). This is because, for many applications and projects, photographs of the actual installation or system cannot be disclosed owing to confidentiality agreements, contractual clauses and non-disclosure agreements (NDAs).







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