NDT offers a safe way of inspecting industrial components as well as ensuring that the components are safe to continue using. Sutro also combines other inspections methods such as rope access and Drone inspections to ensure the health and safety of inspection engineers.

Non-destructive tests are incredibly accurate, results can be corroborated using other testing methods and repeated over time to produce reliable results.

The very nature of NDT inspections mean that problems with components can be identified and repaired before they need to be replaced

Requires minimal disruption to the daily functioning of your business, your staff and equipment.

Used for finding surface/near surface defects in ferromagnetic material, Magnetic Particle Inspection (MPI) is a versatile Traditional NDT inspection method used for field and shop applications.

Benefits of MPI:

• Detects surface and near subsurface indications
• Indications are visible directly on the material surface
• Irregular shapes can be inspected easily
• Pre-cleaning is not as critical
• Low cost compared to many other NDT techniques
• Very portable inspection method

Eddy Current is used to detect surface and near surface defects on relatively small areas; without the need to remove surface paint prior to testing.

Benefits of Eddy Current: 

• Sensitive to small cracks and other defects
• Lightweight and portable probe kit
• Minimal material preparation is required
• Instant results
• Computerised reports

UT uses high frequency sound energy to conduct examinations and perform measurements.

Three basic ultrasonic techniques are commonly used:

1. Pulse-echo and through transmission – A transducer sends out a pulse of energy and the same or a second transducer listens for reflected energy, also known as an echo. Pulse echo is especially effective when only one side of a material is accessible.
2. Normal/Angle Beam – A sound beam that is introduced at 90 degrees to the surface, while angle beam utilises a beam that is introduced into the material at some angle other than 90 degrees.
3. Contact and Immersion – To get useful levels of sound energy into the material, the air between the transducer and the specimen must be removed. This is referred to as coupling.

Benefits of UT:

• Detects both surface and subsurface defects
• The depth of penetration vs. other test methods is superior
• Only single sided access is required with a pulse-echo technique
• Minimal material preparation is required
• Instant results produced by using electronic equipment
• Detailed images can be produced with automated systems

Visual inspection is often used as a weld quality inspection method and is one of the most common Non-Destructive Testing methods.

Involving visual testing of welds, this technique is capable of detecting surface-breaking defects, as many welding flaws are on the surface and can easily be detected via this weld inspection procedure.

This traditional NDT method is used to locate surface-breaking discontinuities in non-porous materials.

Benefits of DPI:

• Used on a wide range of materials
• Large areas or large volumes can be inspected quickly
• The material anomaly can see seen visually
• Complex geometries can be inspected easily
• Aerosol cans make equipment very portable

Harness Testing is a key element in many quality control procedures and in particular R&D works.

The application of portable hardness testing enables you to evaluate a material’s properties, such as strength, ductility and wear resistance, and so, helps you determine whether a material or material treatment is suitable for the purpose or specification you require.

Hardness testing will determine the resistance a material exhibits to permanent deformation by penetration of another harder material.

We offer the three most common indentation hardness testing methods:

• The ‘Rockwell’ Hardness Test
• The ‘Vickers’ Hardness Test
• The ‘Brinell’ Harness Test

Benefits of Hardness Testing

• Establish the tensile strength
• Highly confident data is available immediately and with ease
• Many geometry applications available to take readings