Roth Technik AG

Unterdorfstrasse 2
8588 Zihlschlacht-Sitterdorf
Switzerland

+41 41 500 27 73
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Automated Surface Quality Inspection

Revolutionize glossy surface inspection with Hexagon Deflecto

Enhance your quality control processes with Hexagon Deflecto, the industry’s only patented Covered Stereo Deflectometry (CSD) solution for glossy and reflective 3D parts.

Deflecto combines AI-powered automation and advanced machine vision to eliminate surface defects and deliver consistent, traceable inspection results, ensuring flawless production quality.

Request a Feasibility Study Key benefits

Manual quality control is no longer sufficient

Traditional visual inspection struggles to keep up with modern manufacturing demands. This can lead to inefficiencies, rising costs and scalability issues.

Unreliable & inconsistent results

With an accuracy rate of 80%, manual quality inspection can fail to detect all defects.

Rising costs & skilled labor shortage

Skilled inspectors are hard to find, and manual processes drive up operational expenses.

Scalability & automation demand

OEMs demand automated solutions, yet many traditional machine vision systems fail on glossy 3D surfaces.

Automated Surface Quality Inspection

Market-leading surface quality inspection

Clever automation, future-proof production. Hexagon Deflecto with patented Covered Stereo Deflectometry (CSD) sets the industry standard for automated surface inspection. It delivers high-speed, precise, and scalable quality control for any light-reflecting surface. To date, no surface defect has remained undetected by Hexagon Deflecto.

Inspection Process in Three Steps

  • Scan: Hexagon Deflecto’s patented CSD technology captures every surface detail.
  • Analyze: Advanced AI algorithms compare the captured data against your defined quality benchmarks.
  • Inspect: The system identifies even the smallest scratches, dents and coating inconsistencies, providing reliable and repeatable results.
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The key benefits of Covered Stereo Deflectometry

Reducing costs

Hexagon Deflecto is faster than human inspectors and more cost-effective than multiple manual quality checks. Automated inspection reduces unnecessary scrap and rework costs by catching all defects before parts are shipped to the customer, effectively eliminating costly customer complaints and returns.


Improving quality

Deflecto delivers over 99 percent inspection accuracy, significantly outperforming manual inspection methods. It eliminates subjective variation and ensures flawless, repeatable quality, detecting every surface defect, even the smallest scratches and coating inconsistencies.


Increasing capacity

A single automated Deflecto inspection cell can theoretically inspect up to 6 million parts annually. The actual inspection capacity depends on the type of parts, their dimensions, and the surface quality inspection requirements. Customers can scale the solution freely by adding more cells to cover any volume, including over 100 million parts per year.

The key advantage of Hexagon Deflecto is its unique flexibility. It can inspect virtually any surface that reflects light, not only high-gloss chrome or painted components. You define the production volume and the part type. Roth Technik delivers the fully integrated, turnkey automation solution.

Automated Surface Quality Inspection

Supported Surface Types

Hexagon Deflecto inspects any light-reflecting surface. The examples below illustrate typical applications, but the technology is not limited to them.

Automated Surface Quality Inspection for Painted Products

Painted Products

Automated Surface Quality Inspection for Chrome-plated Products

Chrome-plated Products

Automated Surface Quality Inspection for Glass Products

Glass Products

Automated Surface Quality Inspection for virtually any surface that reflects light

Virtually any surface that reflects light

Automated Surface Quality Inspection

Precision quality inspection across multiple sectors

Hexagon Deflecto with patented Covered Stereo Deflectometry ensures flawless surface inspection for industries that demand the highest quality and consistency. It is capable of inspecting virtually any surface that reflects light.

Automated Surface Quality Inspection in the Automotive Sector

Automotive

Detects defects in glossy interior and exterior parts, ensuring consistent visual quality across all production volumes.

Automated Surface Quality Inspection in the Consumer Electronics Sector

Consumer Electronics

Ensures flawless surfaces on casings, screens, and polished components, even for highly reflective materials.

Automated Surface Quality Inspection in the Medical Devices Sector

Medical Devices

Inspects surgical tools, implants, and coated instruments with high precision for flawless and sterile finishes.

Automated Surface Quality Inspection in the Manufacturing Sector

Manufacturing

Optimizes quality control for reflective metal, plastic, and other components across diverse geometries and finishes.

Design & Details of Hexagon Deflecto

Automated Surface Quality Inspection
Automated Surface Quality Inspection
Automated Surface Quality Inspection

Answers to Key Questions

Our automated quality control system uses Hexagon Deflecto with patented Covered Stereo Deflectometry (CSD) to deliver industry-leading precision in visual inspection. It can inspect virtually any light-reflecting surface, offering unmatched flexibility across part types, finishes, and geometries.

Hexagon Deflecto can inspect nearly any surface that reflects light. This includes high-gloss, painted, coated, plastic, and metal 3D parts in a wide variety of shapes and finishes.

Hexagon Deflecto is highly adaptable and supports both manual and fully automated part changes—including gripper exchange—depending on your production setup. As long as the part fits within the system and has a reflective surface, it can be inspected reliably, regardless of geometry or material.

Yes! The software is designed to be intuitive, with image-based configuration, sliders, and AI-powered defect detection.

Our lead expert, Fredi Janz, affectionately calls it “Windows Paint for Advanced Users.” Many of our customers create their own inspection recipes with confidence after onboarding—especially when introducing new parts.

Hexagon Deflecto integrates seamlessly into robotic and automated production environments. The ideal placement is typically at the end of the line, serving as the final quality gate before parts are shipped. At Roth Technik, we follow one core principle: nothing is impossible. Each integration is tailored to your exact needs—whether it involves special automation, handling, or layout adaptations.

Get a Free Surface Inspection Feasibility Study – for glossy, hard-to-inspect parts

How to choose the right parts and see Hexagon Deflecto in action on real-world surfaces.

NDAs often prevent us from publicly sharing our most impressive case results. While we’re happy to demonstrate how Hexagon Deflecto inspects our own car key, we understand that this may not be relevant — or impressive enough — for your specific application.

That’s why we offer a better way: If you manufacture glossy, hard-to-inspect 3D parts, you can send us sample parts and we’ll run a Free-of-Charge Feasibility Study tailored to your needs — no restrictions, no guesswork.

We’ll analyze the parts, compile a detailed feasibility report, and review the results together with you. This is the most effective way to see what Hexagon Deflecto can do for your business — based on real-world data, not assumptions.

Best practices for selecting parts for a Deflecto Feasibility Study:

  • Choose high runners with varying geometries
  • Include your biggest surface quality control headaches, parts that challenge your QA team or generate most claims
  • CSD (Covered Stereo Deflectometry) can detect all scratches, so feel free to send something even more difficult
  • Ship defective or test parts to Roth Technik in Switzerland
  • Include your inspection criteria with information about A, B, and C surfaces
  • Label and number all parts clearly, and mark any focus areas
  • Let us know how the parts are handled before and after inspection (e.g., trays, jigs, conveyors)

Challenge us!

Send us your parts and we’ll show you what Deflecto can do.

Request a Feasibility Study and gain critical insights into your quality control process – risk-free and based on real-world data. Let’s redefine your surface inspection together.

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Inspected surface after quality control Original surface before quality control

Drag to see what Surface Quality Inspection can discover.

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Joni Kotipelto

Joni Kotipelto

Lead Surface Inspection Solutions

E-Mail

Roth Technik AG

Unterdorfstrasse 2
8588 Zihlschlacht-Sitterdorf
Switzerland

+41 41 500 27 73
E-Mail

Follow us!

Ariba
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