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On-Site Dimensional Inspection Services

On-Site Dimensional Inspection Services

Alto contract dimensional inspection services featuring a high-precision measurement probe on a machined metal part.
Behind the Measurements

ALTO provides professional on-site dimensional inspection and contract metrology services using advanced portable measurement systems. From our headquarters in the UAE, our experienced metrology engineers support industrial projects across Dubai, Abu Dhabi, Saudi Arabia, Qatar, Bahrain, Oman, the wider GCC, Africa and the Far East. We operate Hexagon laser trackers, portable measuring arms, 3D scanners and photogrammetry systems to inspect components, machinery, production lines and large industrial structures directly at the client’s facility. Our capabilities include dimensional control, precision alignment, geometric inspection, assembly verification, deviation analysis, virtual fit-up and comparison of manufactured components against CAD models. Every project begins with a detailed review of the technical requirements, tolerances, drawings and inspection objectives. ALTO then selects the most suitable measurement technology and develops an efficient inspection methodology, supported by traceable measurement data and clear professional reports. Our contract inspection services give manufacturers, fabricators, EPC contractors and maintenance teams immediate access to specialist engineers and high-accuracy metrology equipment without investing in additional hardware or internal resources. Whether the requirement is a single inspection, shutdown support or long-term site assistance, ALTO delivers responsive and reliable dimensional inspection services in the UAE, Saudi Arabia and internationally.

A large industrial machine with multiple rotating arms is positioned on a blue metal frame. In front, a tripod-mounted measuring device, such as the Leica AT960 for laser tracker alignment, alongside a laptop and keyboard are set up for calibration or testing.

Laser Tracker Alignment

ALTO provides on-site laser tracker alignment for machinery, production lines and heavy industrial equipment across the UAE, Saudi Arabia, Bahrain, Qatar and Africa. Our metrology engineers measure position, level, straightness, parallelism and machine geometry to guide installation and adjustment with high accuracy

reverse engineering of a gas turbine rotor with a romer arm

Reverse Engineering

ALTO provides advanced reverse engineering services using Creaform 3D scanners, laser trackers and Hexagon metrology systems to capture accurate dimensional data and transform physical parts into intelligent CAD models. From spare parts and legacy components to tooling, molds and product development projects, our team combines industrial metrology, 3D scanning and engineering expertise to accelerate design, manufacturing and quality control processes. ALTO supports manufacturers across the UAE, Saudi Arabia, Qatar, Egypt and Africa with precise digital workflows for modernization, redesign, inspection and digital twin creation.

On-site laser tracker calibration of an aerospace production fixture to ensure assembly accuracy.

Jig and Fixture Calibration

ALTO provides jig and fixture calibration using portable measuring arms and laser trackers. Critical points, locating pins, reference surfaces, tooling features and assembly interfaces are measured and compared with CAD data or specified nominal coordinates.

The inspection verifies positional accuracy, alignment and repeatability while identifying wear, deformation or accidental movement that could affect component quality. Adjustments can be monitored in real time, followed by a detailed dimensional inspection report.

ALTO performs calibration and dimensional verification of automotive, aerospace, welding, assembly and production fixtures across the UAE, Saudi Arabia and Africa.

On-site machine alignment using a portable laser tracker to measure and align large, non-dismantlable industrial machinery components.

On-Site Milling Machine Alignment

ALTO provides on-site alignment of portable milling machines using high-accuracy laser trackers across the UAE, Saudi Arabia and the Middle East. We establish machining references, guide equipment positioning and perform pre- and post-machining dimensional inspection on large components that cannot be moved to a conventional CNC machine.

A high-precision CMM probe performing an automated inspection of a complex industrial gear.

Gear Inspection Services

ALTO provides precision gear inspection and dimensional measurement across the UAE and Saudi Arabia using coordinate measuring machines and QUINDOS gear metrology software. We inspect new, worn and refurbished gears to support manufacturing control, gearbox overhaul, condition assessment and replacement.

Laser tracker survey measuring the flatness and ovality of a wind farm transition piece flange.

Transition Pieces

ALTO provides laser tracker inspection of offshore wind transition pieces across the Middle East, Africa and worldwide. Measurements include flange flatness, ovality, tilt, BCD, bolt-hole diameter and interface geometry, supported by detailed 3D reporting.

Precision metrology inspection of an aerospace component using advanced 3D scanning and laser tracking technology.

Aerospace Parts Inspection

ALTO provides non-contact 3D inspection of aerospace parts and flight components using advanced scanning and dimensional measurement technologies. Components are compared with their CAD models to identify surface deviations, profile errors, edge-contour discrepancies and potential assembly-fit issues.

The inspection results provide clear dimensional data for quality control, manufacturing correction and acceptance decisions before installation. ALTO performs aerospace parts inspection and technical analysis across the UAE, Saudi Arabia and Africa.

Body-in-White (BIW) automotive inspection featuring a laser tracker measuring a car chassis.

BIW Inspection

ALTO provides automotive BIW inspection from prototype development to production across the Middle East. Our solutions combine Hexagon laser trackers, portable measuring arms and PRESTO Cell automation for body geometry, tooling, jig and fixture inspection.

On-site laser tracker calibration of an aerospace production fixture to ensure assembly accuracy.

Fixture Calibration

ALTO calibrates and aligns automotive checking fixtures, assembly fixtures and production tooling using laser trackers and portable measuring arms. Services include dimensional inspection, adjustment support and calibration reporting

Real-time quality control and alignment of an automotive robotic welding station.

Welding Station

ALTO provides laser tracker alignment and installation validation for automotive welding stations, fixtures and production tooling. Our services cover positioning, levelling, geometry adjustment, dimensional acceptance and final inspection across the Middle East.

Measuring offshore wind farm jacket components using a Leica Absolute Tracker AT960 in a heavy fabrication yard.

MonoPile and Jackets

ALTO provides monopile jacket inspection with Leica and FARO laser trackers for offshore wind projects worldwide. Our dimensional inspection services cover ovality, straightness, flange flatness, BCD, interface geometry and virtual fit-up analysis.

Offshore photogrammetry and laser tracking for non-invasive flange inspection of transition pieces.

Offshore Flange Inspection

ALTO provides offshore flange inspection of monopiles and transition pieces using high-accuracy laser trackers and photogrammetry systems. Measurements verify flange flatness, bolt-circle diameter, hole and stud positions, ovality, tilt and local geometric deviations.

Measured monopile and transition-piece data can be digitally matched before offshore installation. ALTO evaluates different rotational positions to identify the most suitable MP–TP pairing, detect potential hole and stud clashes, verify guiding-pin compatibility and predict interface gaps or required shimming.

Clear digital reports allow manufacturers, installation contractors and project teams to assess flange geometry and compatibility before load-out and offshore assembly. ALTO performs offshore wind flange inspection and remote data analysis worldwide, including the UAE, Saudi Arabia and Africa.
we have delivered successful projects with RWE ocean wind Inch cape Damen Jan de Null

Topside metrology using a total station for deck flatness and column positioning on an offshore platform.

Offshore Topside Inspection

Offshore topside inspection using total stations and laser scanning for deck flatness, column positioning, structural alignment and virtual assembly.

A massive disassembled turbine rotor resting horizontally on supports within a large industrial workshop hall.

Turbine and Generator Alignment

ALTO provides turbine and generator alignment services using high-accuracy laser trackers and industrial metrology software. Measurements verify shaft centre lines, bearing positions, coupling alignment, casing geometry, elevation and orientation during installation, maintenance and overhaul activities.

Our engineers support steam, gas and hydroelectric power-generation equipment by providing real-time dimensional data to guide mechanical adjustments and confirm the final alignment condition. Detailed reports provide traceable measurement results for quality control and project documentation.

ALTO performs turbine and generator alignment across the UAE, Saudi Arabia and Africa. Contact us for project assessment, mobilisation planning and a commercial quotation.

A Leica Absolute Tracker AT960 positioned on a tripod behind a large machined turbine diaphragm for real-time alignment verification.

Turbine Diaphragm Alignment

Turbine diaphragm alignment using laser trackers and 3D scanning for centerline control, bearing-support positioning and precise turbine assembly.

Close-up of a metallic turbine rotor showing concentric rows of curved blades.

Turbine Inspection Services

ALTO provides turbine inspection services for gas, steam and hydroelectric power-generation equipment using high-accuracy laser trackers and portable measuring arms. Components are measured and compared with engineering drawings, nominal dimensions or available CAD data.

Inspection activities can include turbine casings, rotors, blades, bearing locations, split lines, bores, coupling features and assembly interfaces. The measurement results identify dimensional deviations, deformation, wear and alignment conditions during installation, maintenance and overhaul projects.

ALTO provides on-site measurement, real-time adjustment support and detailed dimensional reports for power plants across the UAE, Saudi Arabia and Africa. Contact us to discuss the turbine type, inspection scope and mobilization requirements.

Do you want to know more or need a consultation?

Metrology links the virtual and the real world together. At ALTO we know how to accomplish this in the most efficient way