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Tactile flexibility on the shop floor.

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The intelligence behind the point cloud.

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Portable measurement

3D Measuring Arms: Tactile and Optical Flexibility on the Shop Floor

Inspect parts directly on the production line with metrological precision. Articulated arms combine tactile probing for tight tolerances and laser scanning for complex geometries, ensuring complete versatility in a single piece of equipment.

S4METRO is an official distributor of FARO measuring arms in Portugal.

Request a Demonstration FARO measuring arms
FARO Creaform logo
FARO Quantum X FaroArm Series 3D measuring arm in an industrial environment

Quantum X FaroArm

Quantum X FaroArm Series

Scan + probing

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FARO Creaform logo
FARO Gage Max FaroArm compact 3D measuring arm

Gage Max FaroArm

Gage Max FaroArm

Volume 1,5 m

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FARO Creaform logo
FARO Super 6DoF TrackArm hybrid system with laser tracker and measuring arm

Super 6DoF TrackArm

Super 6DoF TrackArm

Grandes volumes

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FARO Creaform logo
FAROBlu LLP blue laser head coupled to a FARO measuring arm

FAROBlu LLP

FAROBlu Laser Line Probe

Add-on FaroArm

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Complementary Solutions

Maximise the Potential of your 3D Equipment

Complement your measuring arm with dimensional inspection software such as Metrolog X4 by Metrologic Group. S4METRO also provides metrology training.

Explorar Softwares Learn more about Training

Applications

Where measuring arms create value

Tactile Inspection and CAD Alignments

Ideal for the rapid measurement of primary geometries (holes, planes, cylinders) with rigid probes. It allows for the alignment of complex parts and the validation of rigorous geometric tolerances (GD&T) directly on the machine tool, without the need to move the part to the laboratory.

Hybrid Inspection (Tactile + Laser)

The perfect combination for complex components. Use the tactile sensor to reference high-precision machined holes and instantly switch to laser scanning to capture organic surfaces, sheet metal or plastic parts in a single report.

Tube and Bend Control

With the integration of optical forks or dedicated probes, the measuring arm is the industry standard solution for inspecting bent tubes. It allows for measuring radius, length, and rotation, sending direct corrections to bending machines (CNC benders).

What is a 3D Measuring Arm?

A 3D measuring arm, also known as an articulated arm or portable CMM, is a coordinate measurement system that combines the mobility of a human arm with the precision of a traditional measuring machine. Composed of several segments connected by encoded joints, it allows the operator to point a probe at any point on the part and instantly obtain X, Y, and Z coordinates with high accuracy. Its carbon fibre construction and integrated thermal compensation make it stable and reliable even in harsh factory floor conditions.

The true strength of these devices lies in their versatility. Modern measurement arms can be equipped with rigid ruby probes for tactile inspection of primary geometries, but also with laser scanning heads to capture free-form surfaces and generate point clouds. This duality makes them the ideal tool for quality control, reverse engineering, tool alignment, pipe inspection and even large-scale assemblies when combined with laser trackers. At S4METRO, we distribute FARO equipment and help you choose the right configuration for each industrial application.

View on-site metrology and measurement services

Technical demonstration

Request a demonstration with your parts

Describe the part, tolerances, and measurement environment: you will receive a technical recommendation and investment proposal, with options for purchase, rental, or measurement service.

Related solutions

Services

  • 3D Scanning
  • Equipment Calibration

On the Blog

Measuring arm case studies

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ICI technician scanning the front of a Ford F-150 Raptor with a FARO measuring arm
Case StudiesMetrology

3D Scanning: How ICI Reduced Automotive Accessory Design Time by 70%

Case study: with a FARO measuring arm, Innovative Creations Inc. reduced bumper design time from 80 to 24 hours and prototypes from 5 to 1.

5 Aug 2026 9 min

FAQ

Frequently asked questions

Quick answers about portable inspection, tactile probing and software integration. Can't find what you're looking for? Contact us.

The big advantage is portability. While a CMM requires the part to be taken to a climate-controlled room, the articulated arm goes to the part. Constructed with carbon fibre tubes and thermal compensation, they guarantee stability and precision directly in the adverse factory floor environment.
Tactile probing with a ruby stylus is mandatory when inspecting critical geometric elements with very tight tolerances (e.g., H7 bore diameters or rigorous parallelisms). Laser scanning should be used to capture free-form shapes, complex surfaces and generate colour maps of general part deviations.
Yes. To ensure traceability and confidence in measurement results, arms must undergo annual calibration and certification in accordance with international standard ISO 10360-12, which governs accuracy standards for articulated coordinate measuring systems. Calibration is carried out by the manufacturer; S4METRO handles the shipping and oversees the entire process.
Metrolog X4, by Metrologic Group, is designed to work with CMMs, measuring arms and 3D scanners, bringing programming, measurement execution and results analysis together on a single platform. Compatibility with a specific model must be confirmed case by case.
S4METRO is an official FARO distributor in Portugal. The FARO equipment is presented on the FARO brand page. Contact us to define the right configuration and support for your project.

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