AIM CoatPro · programmed point-sequence inspection

Robotic Coating Thickness Measurement for Complex Parts

Stop asking an operator to hunt for the same points on every wheel, housing, blade, seal, battery component, or coated assembly. AIM CoatPro turns a robot-mounted coating thickness sensor into a qualified, repeatable point sequence without contacting the surface. CoatPro XD adds simultaneous thickness-distribution imaging across a qualified field of view when selected points are not enough.

Gauge Advisor is AIM Systems' authorized U.S. sales and applications support partner. Gauge Advisor coordinates sample evaluation, measurement strategy, AIM configuration, automation scope, quotation, commissioning, and service support.
AIM CoatPro mounted on a robot arm for non-contact coating thickness measurement
A repeatable path is part of the production method. The coating calibration qualifies the material response. Robot reach, sensor-to-surface distance, viewing angle, dwell, collision clearance, point identity, and any cell-level part tracking are separate integration responsibilities.
Repeatable pathInspect the same qualified locations in the same order
Useful geometry tolerancePublished typical angular tolerance up to ±75 degrees for CoatPro
Cell integrationPoE, Ethernet, Modbus TCP, and project-defined automation interfaces
Two coverage modelsRobot-guided point sequences or CoatPro XD area maps
Automate the inspection method

Turn a qualified thickness measurement into a repeatable production routine

Once the coating, substrate, range, reference method, and required result are qualified, robotic presentation can repeat the same measurement across named locations and production cycles with less operator dependence.

01

Repeat the same path

Replace operator-selected locations with named points, controlled approach vectors, stable dwell, and repeatable sequence order.

02

Reach difficult geometry

Present CoatPro to curves, faces, edges, housings, blades, tubes, seals, and large assemblies that are awkward to inspect manually.

03

Increase sampled coverage

Add qualified locations where a few convenient manual readings could miss coating variation or part-specific risk.

04

Create traceable results

Associate each qualified location or region with a repeatable recipe, result, evaluation, and project-defined data workflow.

Discrete part or continuous web?

AIM is built around components, selected locations, and defined visible areas. For continuous film, foil, electrode, paper, or sheet that needs a full cross-web profile, start with a Scantech web gauge.

Explore web gauging
Choose the output before the motion

Do you need selected values or thickness distribution across a defined area?

A robot-guided CoatPro sequence and a CoatPro XD area map answer different questions. One is not a lesser version of the other.

AIM CoatPro integrated into an automated coating thickness inspection cell
01

Robot-guided CoatPro point sequence

Use when the drawing or quality plan identifies critical features and the robot must collect a repeatable ordered set of calibrated values.

02

Fixed CoatPro with automated part presentation

Keep the sensor stationary and use a robot, indexer, or handling system to present each required face or location.

03

Multiple synchronized CoatPro sensors

Trade robot travel for parallel measurements when cycle time is tight and several known locations can be accessed simultaneously.

04

CoatPro XD area mapping

Use one or more camera modules when the required result is thickness distribution, local thin and heavy zones, edges, or regions of interest across a visible area.

A robot adds locations. It does not turn a point sensor into an area camera.

CoatPro produces an ordered set of point measurements. CoatPro XD creates a calibrated thickness image across the qualified field of view. Larger or multi-sided components may require additional views, cameras, or controlled part motion.

Compare CoatPro and CoatPro XD
Choose the measurement architecture

Match the method to the result the control plan needs

Most projects become easier once five questions are settled: total build or individual layers, selected values or an area map, contact or non-contact, measurement state, and final acceptance method. For automated non-contact total-build measurement, AIM CoatPro and CoatPro XD are the primary paths.

ArchitectureBest fitKey considerationAIM path
Manual contact DFTFinal dry-film checks on compatible substrates and accessible geometryOperator placement, surface contact, and substrate limits can make repeatable complex-part automation difficultKeep the specified reference or acceptance method. Add AIM when non-contact automated total-build data and repeatable point identity create production value.
Non-contact point or path measurementAIM CoatProCritical locations repeated around complex parts, either by moving the sensor or presenting the partOnly programmed locations are sampled, and the coating response, calibration, distance, angle, and cycle time must be qualifiedUse robot-guided sequences, fixed-sensor presentation, or synchronized CoatPro sensors to repeat qualified measurements with less operator dependence.
Area imagingAIM CoatPro XDThickness distribution, local thin or heavy zones, edges, and regions of interest across a defined visible areaField of view, line of sight, curvature, camera count, spatial detail, and total cycle time remain project dependentUse CoatPro XD when a calibrated map provides more decision value than a longer sequence of individual points.
Contact multilayer ultrasoundSeparate qualified paint layers when individual-layer values drive acceptanceThe end-of-arm tool contacts the surface, so geometry, finish, access, and contact acceptance matterChoose AIM when a qualified non-contact total-build result is the required control variable and layer separation adds no decision value.
Non-contact multilayer or terahertzSeparate qualified organic or dielectric layers without contacting the surfaceMaterial response, layer stack, geometry, system complexity, footprint, cycle time, and investment require reviewChoose AIM when CoatPro or CoatPro XD can deliver the required total-build result through a more direct point, path, or area workflow.
Why AIM

Build the cell around proven measurement performance.

AIM combines periodic LED lock-in photothermal measurement with flexible point, path, synchronized-sensor, and area-imaging options. Gauge Advisor adds U.S. application support from representative-sample review through configuration, integration planning, commissioning, and service.

1

Test before equipment commitment

Representative samples establish measurability, achievable precision, calibration, range, and measurement time before the production concept is finalized.

2

Repeat production recipes

Single-point, continuous, statistical, and robot-sequence modes support repeatable locations, evaluations, and project-defined data records.

3

Work around real part geometry

AIM publishes typical CoatPro angular tolerance of ±75 degrees and a typical 100 mm working distance with 50 mm tolerance. Final performance remains application dependent.

4

Connect cleanly to the cell

PoE and Ethernet simplify the sensor connection, while Modbus TCP supports project-defined PLC and robot communication.

5

Reduce motion when cycle time is tight

Synchronized CoatPro sensors can collect parallel measurements when robot travel would dominate the inspection cycle.

6

Map a defined visible area

CoatPro XD uses modular thermographic cameras and regions of interest to visualize thickness distribution. AIM publishes a typical 30 × 20 cm field with lateral resolution below 1 mm, with final coverage project dependent.

Confirm the right architecture

AIM is strongest when qualified non-contact total-build measurement must be repeated across defined points, paths, or visible areas. If the release decision requires separate individual layers, a full cross-web profile, occasional manual checks, or field inspection, confirm that requirement before specifying the cell.

Review the application
Plan the complete production cell

The robot path is only one part of the measurement system

A credible concept connects application proof, point selection, motion, cycle time, cell interfaces, decision logic, traceability, and safety. Skipping any one of these can make good sensor data unusable in production.

01 · Prove

Qualify the coating

Confirm measurability, calibration, range, precision, and measurement time.

02 · Define

Build the point map

Name risk locations, approach vectors, limits, and required coverage.

03 · Reach

Check robot access

Review distance, angle, occlusion, collision clearance, cable routing, fixtures, and optical-window contamination.

04 · Time

Model the sequence

Add robot travel, settle, measurement, evaluation, and part-handling time.

05 · Connect

Define the handshake

Cycle trigger, calibration assignment, ready, measure, result, fault, retry, and data retention.

06 · Validate

Prove the complete cell

Confirm MSA, production variation, pass/fail logic, safeguards, and final acceptance.

Geometry starting pointTypical ±75° angle tolerance

Published CoatPro value, not a guarantee at every coating, distance, or measurement time.

Working-distance starting pointTypical 100 mm with 50 mm tolerance

This is AIM's published CoatPro wording. Confirm the qualified window, optical setup, part envelope, and robot path during testing.

Production connectionPoE + Modbus TCP

Power and data over Ethernet with project-defined PLC and robot handshakes.

Coverage expansionSynchronized sensors or XD cameras

Reduce robot travel or add mapped coverage when cycle time or distribution requires it.

Do not calculate takt time from the sensor reading alone

Total inspection time includes robot approach, settle time, measurement time at each location, motion between points, evaluation, retries, part loading, any separately engineered identification step, and handoff. Parallel CoatPro sensors or CoatPro XD may outperform a longer robot path even when an individual point measurement looks fast.

Estimate inspection ROI
Demonstrated application breadth

Strong starting points for complex-part and automated inspection

AIM's published validation list spans automotive coatings, batteries, seals, fuel cells, aerospace, wear coatings, and complex profiles. That breadth creates strong starting points for robotic application testing; final reach, coverage, line of sight, and takt time are confirmed on the actual part.

Battery components

Cell housings and cooling plates

Cylindrical and prismatic aluminum housings with UV lacquer or powder coating, plus powder-coated serpentine cooling plates.

Explore EV coating measurement
E-coat

Automotive bodies and e-coated components

AIM lists protective E-Coat / EPD on aluminum and steel before and after baking or cross-linking. That makes e-coat a strong application-testing starting point, but it does not by itself validate robot access, production coverage, cycle time, or final acceptance.

Review before-cure measurement
Automotive

Plastic body parts and radomes

AIM lists primer, base coat, and top coat on polycarbonate or ABS plastic body parts, plus top coat and clear coat on polycarbonate radomes.

Elastomers

Coated rubber seals

Lubricant and flock adhesive on EPDM or neoprene seals where controlled presentation can follow faces, lips, and repeated locations.

Explore rubber extrusion solutions
Fuel cells

Bipolar-plate sealing layers

Foamed sealings on metallic fuel-cell bipolar plates where point identity, local features, and traceable non-contact measurements matter.

Explore functional coatings
Aerospace

Metallic and CFRP turbine blades

AIM lists ceramic, MCrAlY, and titanium dioxide on metal or titanium blades, plus primer and top coat on CFRP blades.

Explore functional coatings
Powertrain and wear

Brake discs and cylinder bores

Tungsten carbide or titanium carbide on brake discs and steel-coated aluminum cylinder-bore surfaces.

Review photothermal fit
Extreme service

Rocket-engine protective coatings

Heat-resistant 2K epoxy and 2K polyurethane on steel components where programmed access and traceable point identity matter.

Review technical coatings
Long or multi-feature parts

Window frames and profiles

Primer on plastic frames where a programmed sequence or controlled part motion can inspect repeated faces and positions.

Reduce project risk before robot programming

Separate application proof from production-cell proof

A good laboratory result establishes whether the coating can be measured under defined conditions. A good cell study shows whether that result can be repeated at the required locations and within takt time through normal production variation. The customer's quality plan still determines whether the method is accepted for release.

Application proof

Start with the material system and the result the quality plan actually needs.

  • Representative coating and substrate samples
  • Wet, uncured, baked, or fully cured state
  • Total coating build or separately reported individual layers
  • Known low, nominal, and high reference values
  • Required acceptance method and correlation plan
  • Expected range, tolerance, and required precision
  • Surface finish, color, temperature, and normal variation
  • Measurement time at realistic geometry
  • Calibration ownership and verification method
  • CoatPro point path or CoatPro XD field decision

Production-cell proof

Then apply the qualified measurement to the actual part, motion, machine, and decision flow.

  • Part CAD, drawings, fixtures, and orientation
  • Named point map or camera regions of interest
  • Robot reach, distance, angle, occlusion, and clearance
  • Optical-window contamination plan and air purge if required
  • Takt time with motion, dwell, evaluation, and handling
  • PLC and robot handshake, with separate part tracking if required
  • Pass/fail, alarm, retry, bypass, and fault behavior
  • Data retention, image or CSV export, and traceability
  • Robot safety, environmental limits, local code, and final acceptance responsibilities
  • North American hazardous-location review where coating or solvent conditions require it
Review a robotic application
Frequently asked questions

Robotic coating thickness measurement FAQs

Answers to the questions that most often change the sensor, motion, and cell recommendation.

Does AIM supply the robot?
AIM supplies the coating measurement platform and software. Robot, fixture, safety-cell, handling, PLC, actuator, and integration responsibilities are confirmed project by project. Gauge Advisor helps coordinate the measurement requirements so the cell is designed around a qualified method.
What is the difference between a CoatPro robot sequence and CoatPro XD?
CoatPro returns calibrated values at selected positions along a programmed path. A robot can cover as many qualified locations as reach and cycle time allow, but unsampled areas remain unsampled. CoatPro XD returns a thickness-distribution image across a qualified field of view and can evaluate regions of interest. Larger or multi-sided parts may require multiple cameras, views, or controlled part motion.
Does AIM report total coating build or each individual paint layer?
Plan around a calibrated total coating thickness unless AIM application testing confirms a different result for the exact layer stack. If the control plan requires separate primer, basecoat, and clearcoat values, compare a qualified multilayer method such as robotic PELT ultrasound or terahertz. Individual-layer capability is valuable when the release decision needs it. It adds little value when one qualified total build is the required control variable.
When does an installed robot cell make more sense than a handheld gauge?
Use a handheld gauge when portable operator checks satisfy the quality plan. An installed CoatPro cell becomes more compelling when locations must be repeated automatically, point identity matters, multiple faces or features must be inspected, results must reach a PLC or database, or the inspection must run without an operator presenting the gauge.
How does AIM compare with coatmaster, Phototherm, OptiSense, Enovasense, and other photothermal systems?
These suppliers offer credible automated photothermal options. The practical choice should come from representative-part testing and comparison of the required output, geometry, cycle time, interfaces, integration scope, and support. AIM brings periodic LED lock-in measurement, CoatPro point and sequence modes, synchronized sensors, CoatPro XD area imaging, PoE, Modbus TCP, and U.S. applications support through Gauge Advisor.
Can photothermal data become the final acceptance method?
Only when the governing drawing, customer specification, control plan, or approved validation permits it. Application testing establishes measurability and performance under defined conditions. It does not automatically replace a specified magnetic, eddy-current, ultrasonic, microscopy, gravimetric, or other acceptance method. Define the reference method, correlation, MSA, verification frequency, and release authority before the cell is purchased.
How do we estimate robotic inspection cycle time?
Add robot approach, settle, measurement, evaluation, motion between points, retries, part loading, identification, and handoff. Do not multiply the published minimum sensor time by the point count and call that takt time. A parallel multi-sensor or CoatPro XD concept may be better when motion dominates the cycle.
Can CoatPro automatically correct the coating process?
CoatPro can provide continuous or sequence data and communicate through Modbus TCP. Automatic correction requires separately engineered decision logic, a suitable controller and actuator, machine authority, limits, safeguards, response testing, and validation of the complete loop.
Is AIM's optional ATEX version automatically acceptable in a North American hazardous location?
No. AIM states that an ATEX version is available, but ATEX suitability does not by itself establish NEC or CEC compliance, equipment listing, area classification, purge requirements, overspray suitability, or acceptance by the local authority having jurisdiction. Review the coating chemistry, dust or vapor hazard, ventilation, controller location, wiring method, robot cell, and required certifications for the actual installation.
Technical source notes
  1. AIM Systems CoatPro: point, continuous, statistical, robot-sequence, synchronized systems, PoE, Modbus TCP, and published representative geometry.
  2. AIM Systems CoatPro XD: full-field thickness distribution, modular camera groups, regions of interest, and published field-of-view information.
  3. AIM Systems validated applications: material combinations tested in AIM's application laboratory. A validated material combination does not itself establish a robot-cell installation.
  4. AIM Systems photothermal white paper: periodic excitation, phase response, calibration, material requirements, and measurement boundaries.