Double rail track stretching to the horizon
SPECIALIZED NDT SOLUTIONS

Our Services

Delivering precision inspection across all NDT disciplines. Every method. Every material. Every site. Certified technicians operating at the highest industry standards.

Radiographic Testing (RT)

Precision rail weld inspection using X-ray and Gamma sources.

MPIA operates specialized mobile darkroom units for on-site radiographic inspection of thermit welds. We utilize Iridium-192 sources and high-definition Fujifilm CR systems to deliver rapid, accurate results across all rail network projects.

Technical Specifications

Applicable StandardsSANS 3577-1, AREMA Chapter 4, ISO 17636
Professional EquipmentIr-192 Gamma Sources, Fujifilm Resalis CR, Mobile Darkrooms, 100XD Film
Thermit weld inspection
Rail joint radiography
Cast steel components
Weld set certification

Ultrasonic Testing (UT)

Internal flaw detection via high-frequency pulse-echo techniques.

Non-destructive inspection of internal material discontinuities and thickness measurement. Our UT experts utilize phased array (PAUT) and time-of-flight diffraction (TOFD) for precise sub-surface diagnostic mapping.

Technical Specifications

Applicable StandardsSANS 3577-2, ISO 17640, ASME Section V
Professional EquipmentGE USM Go+ Flaw Detectors, Olympus EPOCH 650, Phased Array Systems
Rail running surface
Weld integrity mapping
Wall thickness measurement
Sub-surface flaws

Magnetic Particle (MT)

Surface and near-surface defect detection in ferromagnetic components.

Identifying fatigue cracks and material separations using electromagnetic fields. Critical for rail head surface integrity and wheel flange inspection in heavy-haul environments.

Technical Specifications

Applicable StandardsSANS 3577-3, ASTM E709
Professional EquipmentMagnaflux Yokes, UV Lamps, Fluorescent Particle Systems
Rail head crack detection
Wheelset inspection
Structural weld examination

Dye Penetrant (PT)

Sensitive surface-breaking flaw identification in non-porous materials.

Liquid penetrant testing allows for rapid screening of surface-breaking defects in both ferrous and non-ferrous joints. Ideal for finishing checks on critical rail components and joint assemblies.

Technical Specifications

Applicable StandardsISO 3452, ASME Section V Article 6
Professional EquipmentFluorescent Penetrants, Visible Dye Systems, Developer Powders
Non-ferromagnetic components
Rail joint surface checks
Component quality control

Visual Testing (VT)

Systematic expert visual assessment and digital documentation.

Direct and remote visual inspection using high-resolution borescopes and 360-degree digital monitoring systems. The fundamental first step in any structural integrity audit.

Technical Specifications

Applicable StandardsISO 17637
Professional EquipmentIndustrial Borescopes, 360° Inspection Cameras, Digital Document Scales
Track geometry assessment
Weld profile verification
Surface corrosion auditing

Weld Inspection & Certification

Comprehensive assessment and official Certificate of Conformance.

Formal thermit weld certification programs delivering C1, C2, or C3 classification reports. Our specialized reporting matches the specific requirements of PRASA, Transnet, and international rail authorities.

Technical Specifications

Applicable StandardsPRASA / Transnet Rail Specifications, AREMA
Professional EquipmentMulti-discipline NDT Kits, Digital Reporting Cloud
Regulatory compliance
New-build certification
Refurbishment QA

NDT Training & Support

Assisting industry professionals in their pathway to SNT-TC-1A Level I and II certification. We provide guidance on theoretical preparation and documenting critical practical experience hours.

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Technical Consultation

Expert advisory on NDT procedure development, procedure writing, and regulatory compliance planning for major infrastructure stakeholders.

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ALL PROCEDURES PERFORMED BY SNT-TC-1A LEVEL II AND III CERTIFIED TECHNICIANS

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