Inspect LTSH and Economiser Coils Without Lifting Them
What Is It
Inspect the Hardest-to-Reach Tubes
In the boiler second pass, LTSH and economiser coils are tightly packed, making the bottom tubes difficult to inspect.
Traditional access can require coil lifting or creating additional space, increasing outage time and cost. IRC Engineering developed ORBIT to solve this access challenge - without disturbing the coil.
ORBIT combines:
- Ultrasonic thickness mapping
- Visual inspection
- Automated data capture
- Bottom-tube access
Why ORBIT
Why Choose ORBIT?
ORBIT is purpose-built for tightly spaced LTSH and economiser coil geometry.
Full Access
Reaches normally inaccessible bottom tubes without coil lifting.
Dual Inspection
Captures visual images/video alongside UT thickness data.
Multi-Point Coverage
Measures thickness at 3 points around the tube periphery.
Faster Inspection
Encoded UT scanning at up to 2 metres per minute.
How It Works
Our ORBIT Inspection Method
Robot Deployment
ORBIT is positioned within the LTSH or economiser coil bank.
Vertical Access
The system travels vertically through tight tube-to-tube spacing.
UT Scanning
Encoded ultrasonic testing captures continuous thickness data.
Visual Inspection
Images/video are captured alongside the UT inspection.
Data Recording
Inspection data is automatically recorded for analysis and reporting.
Tube-to-tube spacing capability: 40–150 mm | Vertical travel: up to 3 m
Our System
Our ORBIT Robotic Inspection System
Purpose-built robotics for the tight geometry of boiler second-pass coils.
Visual + UT Inspection
Visual coverage and ultrasonic thickness data captured together.
Tight-Space Access
Operates in tube spacing as tight as 40 mm.
Automated Data Capture
Inspection results are recorded continuously for traceability.
IDMS-Ready Output
Data can feed directly into Inspection Data Management Systems for visualization and planning.
One robotic system. One inspection pass. Comprehensive coil condition data.
Applications
ORBIT Inspection Applications
LTSH Coils
Inspect tightly packed Low Temperature Super Heater tubes.
Economiser Coils
Assess tube wall condition without lifting the coil.
Bottom Tube Inspection
Reach the tubes that are traditionally difficult or impossible to access manually.
Wall Thickness Mapping
Capture UT thickness data at multiple points around the tube.
Visual Inspection
Record visual images and video alongside thickness measurements.
Designed specifically for the second-pass geometry of LTSH and economiser tube banks.
Why IRC
Why IRC Engineering Services?
Purpose-Built Robotics
ORBIT is engineered specifically for tightly stacked boiler coils.
No Coil Lifting
Inspect inaccessible bottom tubes without disturbing the coil.
Dual Inspection
Combine visual inspection and UT thickness measurement in one pass.
Reduced Outage Time
Eliminate the additional coil-lifting step from the inspection process.
Data-Driven Inspection
Generate structured inspection data for visualization, assessment, and planning.
Unlike one-size-fits-all robotic systems, IRC develops inspection solutions around the actual access challenge.
Why It Changes the Inspection Outcome
Reach what manual inspection can’t.
ORBIT enables inspection of normally inaccessible bottom tubes while reducing intervention, inspection time, and outage risk.
Visual data + thickness data + multi-point coverage - in a single inspection pass.
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