+91 98335 30200  ·  sales@tcreng.com
A sectioned pipe revealing internal scale and partial blockage in cold tone

Services · Robotic and AI-Assisted Inspection

The Chugai Technos Scale Checker

A Cs-137 dual-mode instrument, AERB compliant and driven from a wireless tablet, measures internal scale on furnace and reformer tubes and on pipelines. The stated return per turnaround is Rs. 15 to 20 crore.


Request a Quote

Overview

The Chugai Technos Hiroshima MOU signed 29 April 2026 sets a three-party (India, Japan, KSA) collaboration scope for two non-binding years, with a joint trade-show appearance in Japan in September 2026. The first commercial output is the Scale Checker, launched at NDE 2025 Mumbai (December 11 to 13, 2025).

Specifications

SpecificationDetail
SourceCs-137
Operating modesDual-mode
InterfaceWireless tablet
ROI per turnaroundRs. 15 to 20 crore
ComplianceAERB
ApplicationInternal scale measurement on furnace and reformer tubes; pipeline scale measurement

What the Scale Checker measures

High-temperature boiler operation, especially above 1000 degrees F or 500 degrees C, forms brittle iron oxide, or magnetite, on the inner surfaces of tubing. That layer reduces heat transfer, raises the tube-wall operating temperature, and shortens the creep life of the tube.

The Scale Checker is a radioisotope system built around a Cs-137 source that measures scale, sludge, and fouling inside live tubes and pipelines without removing insulation or stopping flow. Early and accurate measurement of the internal oxide scale guides descaling decisions, supports remaining-life estimation on the tubes, and helps recover the heat-transfer efficiency that scale erodes.

Where it applies

The Scale Checker measures internal scale on furnace and reformer tubes and inside pipelines, in dual-mode operation read through a wireless tablet.

The capability enters TCR's power practice through the Chugai Technos alliance, and is applied on-load to oxide scale thickness measurement on superheater tubes, so creep-critical components are tracked on measured data rather than assumed. Work using a Cs-137 source is conducted under AERB compliance.

Related insights

1 published insight on this site bears directly on Scale Checker. It is shown below alongside the most recent Robotic Inspection work, and the full index carries all 4.

Read all 4 Robotic Inspection insights →All insights →

Frequently asked questions

What does the Scale Checker measure?

The Scale Checker measures internal oxide scale, sludge and fouling inside boiler and reformer tubes and pipelines. Above about 500 degrees C, magnetite forms on the inner tube surface, reduces heat transfer and shortens creep life, and measuring its thickness guides descaling and remaining-life decisions.

Does the tube have to be taken out of service?

No. The Scale Checker is a radioisotope system that reads scale inside live tubes and pipelines without removing insulation or stopping flow, using a Cs-137 source in dual-mode operation through a wireless tablet.

Where does the Scale Checker come from?

The Scale Checker is the first commercial output of the Chugai Technos alliance and was launched at NDE 2025 in Mumbai from 11 to 13 December 2025. It brings boiler-tube oxide scale measurement into TCR's power practice.

Is the Scale Checker safe to operate?

The system uses a Cs-137 radioisotope source and is operated under AERB compliance, so the radiological safety framework of the Atomic Energy Regulatory Board governs its use.

Measure the scale without opening the tube.

Request a Quote