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 DIACHECK-CT series high-precision digital radius and diameter gauge is designed to measure the radius of cylindrical objects such as tubes, profiles and rolled parts quickly and accurately.
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.
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Technical characteristics
This radius gauge gives a direct, instant reading of the inside or outside radius for a wide range of curves, profiles, diameters and cylindrical objects.
- Convenience: there is no need to cut out templates to find the radius of a curve, nor to remove the part from the machine to measure it, nor to take the part out of its installed position (buried pipes, installed tanks, rolling machines already positioned and fixed, for example)
- Ease of use: it is easy to use and the measuring process is extremely quick. Simply place the gauge inside or outside the curve to obtain the radius of curvature, or the diameter of the object, automatically.
- Any material: the gauge is suitable for any type of solid material such as steel, wood or plastics.
- High accuracy: the margin of error on the radius is only 0.1 mm (measuring accuracy depends on the surface quality of the solid being measured; to obtain maximum accuracy the surface must be free of dips and of high surface roughness).
- Field of application: this radius gauge is supplied with different measuring arches and different contact angles. Using the various arches gives a measuring range between 100 and 10000 mm.
Innovative and versatile
- Battery-powered LCD digital display: convenient reading of the measured value, with the option of transferring it to a data acquisition system via Bluetooth interface.
- Practical: it is small and light and can easily be used for different measurements simply by changing the measuring arch.
- Transport: an aluminum case with internal foam padding is available to store and protect the gauge when not in use. Easy to carry and shock-resistant.
- Two units of measurement: you can choose to measure in millimeters or inches simply by pressing the unit conversion button.
- Ideal for large radii: the instrument can measure radii up to 10 meters with maximum accuracy.
Typical applications
- Measuring the radius of curvature of bent tubes.
- Measuring the outside diameter of tubes and pipes (even when already installed or buried).
- Measuring the inside diameter of ribs and large tubes.
- Measuring the radius of curvature of curved sheet metal.
- Measuring the diameter of large tanks or silos, both while the individual parts are being built and during assembly and positioning.
- Measuring the radius of curvature of molded or thermoformed plastic parts.
- Measuring the radius of curvature of rolled and bent beams.
- Measuring the shape of molded parts or curved sheet metal for the furniture industry.
- Measuring the curvature of glass or of items with complex geometric shapes.
- Checking and comparing the mathematical model of geometric shapes produced by CNC.
- Checking the curvature of tubes and fittings.
- Measuring the curvature of glazing and of mating profiles.
- Measuring the radius of curvature of body panels and sheet metal parts for the automotive industry.
- Measuring the diameter of ribs for tunnels or for construction.
- Measuring the radius of curvature of cement and concrete products.
- Measuring the radius of curvature or the diameter of parts for the marine industry or for building large structures.
- Measuring the radius of curvature of profiles during processing on profile bending machines, press brakes and forming systems.
- Measuring the diameter of tubes and the mating taper for the hydrocarbon, water and liquid transport industry.
- Measuring the degree of taper of mating flanges for tubes or tanks.
- Measuring the diameter or the radius of curvature of rolled or welded products.
- Checking correct assembly of parts during mating and sealing.
In depth
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 a digital arch gauge that measures internal and external radii and diameters from 100 to 10000 mm using the three-point circumference method, with direct, instantaneous reading on the display.
On sheet metal, beams, tubes, profiles, glass, concrete products, shaped cardboard, and furniture and wood elements with curved geometry.
Measurement is high-precision using the three-point method; the actual accuracy depends on the quality and roughness of the surface.
Yes: it is portable and robust, with interchangeable arches to cover small, medium and large radii.
On the product page of the DIACHECK-CT arch gauge catalogue, where you can compare the versions and choose the one suited to your application.
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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