Robotic & Automated NDT Systems
🐘 Tusker VaultSpecializedSpecialized & Robotic • Robotic NDT

Robotic & Automated NDT Systems (Robotic NDT)

Method Overview

Automated magnetic crawlers, pipe inspection crawlers, and robotic manipulators for hazardous and un-manned in-service inspections.

Core Method Specifications

Technique IDRNDT
AcronymRobotic NDT
CategorySpecialized
ModalitySpecialized & Robotic
Standardized Report TemplateISO 17020 Ready
RNDT-Standard-TemplateTest in Sandbox

Target Applications & Governing Standards

1 Scopes Configured
Storage Tanks
API 653
Target Assets / Components:
In-Service Crude Oil Tank Shells & Roofs
Detectable Defects & Anomalies:
• Shell Wall Loss• Corrosion Scouring• Pitting

Method Limitations & Operational Boundary Conditions

Critical physics limits, thermal envelopes, blind spots, and ASME Sec V / API procedural boundaries for Robotic NDT.

Level III Procedure Control
Operating Temp Envelope
Standard Envelope-10°C to +50°C (14°F to 122°F) crawler electronics and motor drives
High-Temp CapabilityUp to 150°C (302°F) with high-temperature magnetic wheels, umbilical cooling, and heat shielding

Permanent rare-earth magnetic drive wheels undergo irreversible magnetic loss above 80°C unless cooled.

Thickness & Dead Zone
Min ThicknessSteel plate thickness ≥ 4.0 mm (0.16 in) required to provide sufficient magnetic grip for vertical climbing
Max RangeScans up to 100 mm wall thickness with multi-channel ultrasonic arrays
Near-Surface Dead Zone

Governed by the mounted payload (typically PAUT, EMAT, or MFL sensor specifications)

Surface Condition & Couplant
Roughness & PrepWeld seams, plate steps, and lap joints must not exceed crawler obstacle climbing threshold (typically ≤ 15 mm)
Coating ToleranceInspects through coatings up to 3.0 mm; thick slippery coatings cause crawler wheel slippage on vertical walls
Couplant / Media

Continuous pressurized couplant pumping system delivered through umbilical tether

Geometry & Orientation
Orientation Sensitivity

Magnetic wheels hold crawler in any orientation (vertical, upside-down ceiling, overhead tank roofs)

Clearance:Access manway opening ≥ 450 mm (18 in) for crawler entry into confined spaces
Critical Blind Spots
  • •Non-ferromagnetic assets (stainless steel tanks, aluminum vessels): Standard magnetic crawlers cannot adhere or climb without vacuum suction tracks
  • •Sharp nozzle corners and obstacle dead zones within 150 mm of internal structural stiffeners
False Indication Trap:

Crawler wheel slippage causing encoder position drift and distorted C-scan spatial mapping coordinates

Recommended Cross-Validation

Drone visual testing for high-elevation internal visual reconnaissance prior to crawler launch

Manual ultrasonic verification on areas obstructed by structural internal stiffeners

Level III Code Compliance Directive:ASME Section V Article 4 Appendix E requires tether fail-safe arrestor systems and independent dual-encoder spatial verification.

Technique-to-OEM Compatibility Matrix

Verified manufacturers, instrument models, and diagnostic portals supporting Robotic NDT.

7 Verified OEMs
Waygate Technologies

Waygate Technologies

Global industrial inspection conglomerate under Baker Hughes, encompassing Krautkrämer ultrasonic, Seifert radiography, Everest borescopes, and phoenix|x-ray computed tomography.

Modalities:UTRTETCRDR+3 more
Eddyfi Technologies

Eddyfi Technologies

Advanced non-destructive testing conglomerate encompassing Eddyfi electromagnetic arrays, Silverwing tank floor scanners, Teletest guided waves, Inuktun robotic crawlers, and M2M phased array instruments.

Modalities:ETMFLPAUTACFMPEC+6 more
TSC Subsea

TSC Subsea

Specialist offshore manufacturer of Alternating Current Field Measurement (ACFM) crack detection instruments and ROV-deployable scanners for subsea jackets and risers.

Modalities:ACFMETRNDT
Gecko Robotics

Gecko Robotics

Pioneer of wall-climbing magnetic NDT crawlers (TOKA series) that capture millions of ultrasonic thickness readings across boilers, tanks, and pressure vessels for predictive digital twin analysis.

Modalities:RNDTUTVTPAUT
JIREH Industries

JIREH Industries

Canadian manufacturer of precision manual and automated ultrasonic scanners, circumferential pipe crawlers, and encoder accessories for weld and corrosion mapping.

Modalities:RNDTPAUTMFLUTTOFD
Phoenix ISL

Phoenix ISL

UK boutique designer of specialized ultrasonic transducers, custom PAUT phased array probes, and automated robotic scanners for nuclear and aerospace.

Modalities:PAUTTOFDUTRNDT
ScanTech Instruments

ScanTech Instruments

Boutique manufacturer of specialized subsea automated UT crawlers, bespoke magnetic scanners, and high-temp corrosion inspection heads.

Modalities:UTPAUTRNDT