Articles & News

Our Articles

Welcome to our selection of Articles on High-Temperature Inspections.

In this section, CESYCO shares its expertise on industrial endoscopy, its practical applications and the challenges of inspections in extreme environments.
Whether you’re a technician, maintenance manager or simply curious to understand the technologies used in industrial furnaces or thermal power plants, you’ll find useful resources here.
Our content covers everything from technical advice and feedback from the field to news on industrial endoscopy.
High-temperature inspections require reliable equipment and real expertise. This is what we propose to explore, article after article.

The bases of inspection :

Applications and case studies :

Technologies and innovations :

Service and maintenance :

Our News

Keep up to date with CESYCO events, innovations, partnerships and internal developments. Here, we share the highlights of our corporate life, as well as important announcements.
Stay connected to our industrial world, and discover what goes on behind the scenes in high-temperature endoscopy.

CESYCO Participates in Pollutec 2025: Focus on Urban Waste Incinerator Inspection

The CESYCO Team is Coming to Lyon! From October 7 to 10, 2025, CESYCO will participate in the Pollutec exhibition at Lyon Eurexpo, the reference event for environmental, energy, and waste treatment professionals. We will present our high-temperature visual inspection...
mascotte diable Cesyco été

Summer closure: August 9 to 24, 2025

The CESYCO team is taking a summer break! Our offices and workshops will be closed from Saturday August 9 to Sunday August 24 inclusive. We’ll be back in business on Monday August 25. Have a great summer!

FAQ

Do you have a quick question about the use of an endoscope, its limits at high temperatures, or good maintenance practices?

This FAQ contains answers to the most frequently asked questions by our customers, straight from the field. Each answer is concise, clear, and sometimes accompanied by a link to a more detailed article if you wish to go further.
Our aim: to save you time and make your work more reliable, even in the most extreme environments.

What's the difference between an industrial endoscope and a borescope?

A borescope is a standard and often flexible inspection tool, used to observe hard-to-reach areas at ambient temperature. An industrial endoscope, like those designed by CESYCO, is rigid and specifically developed to withstand extreme conditions (up to 2000°C), offering reliable vision in constrained environments thanks to integrated cooling and custom-made components.

Can you inspect molten glass?

Yes, with a fixed power-cooling endoscope, used in basin furnaces for example. In this case, the burners, refractory walls or bath surface are inspected.

What's the difference between destructive and non-destructive testing (NDT)?

Non-destructive testing (such as endoscopy) enables us to check the internal condition of a piece of equipment without damaging or stopping it. Destructive testing involves taking a sample or performing a test that damages the part.

What is the maximum length of a rigid endoscope?

At CESYCO, some rigid models can reach 7 meters, but maneuverability and optical clarity diminish with length.

The endoscope overheated during inspection. Is it ruined?

Not necessarily. If the cooling system has temporarily failed, a workshop test will enable you to assess the damage. If in doubt, it’s best not to use the unit again.

Can the endoscope be inserted into a very narrow opening?

CESYCO’s smallest diameters are up to 40 mm. In order to withstand extreme temperatures, we need a high-performance cooling system that guarantees impeccable image quality.

Can an endoscope be used on a dusty or corrosive site?

Yes, as long as you choose the right model (with air supply, protective sheaths, protected optics). In the event of heavy corrosion, rapid cleaning is essential.

Can an endoscope be used after a local repair (ceramic welding, gunning, etc.)?

Yes, and it’s even recommended to validate the effectiveness of the repair and identify areas of residual risk.