SERVICES · 01
Weld, material and machine-condition testing for fabrication, piping, structural steel and plant assets.
Mechanical NDT lets you check the integrity of welds, castings, forgings, pipes and machinery without cutting, damaging or taking them out of service. Our qualified technicians test at your fabrication shop, plant or project site, using calibrated equipment and written procedures, and issue clear reports that give the method, acceptance criteria, observations and an accept/reject decision for each item — ready for your client, consultant or third-party inspector.
A magnetic field is applied to the component using AC/DC electromagnetic yokes. Wherever a crack or discontinuity interrupts the field, flux leaks out and attracts fine magnetic particles (visible or fluorescent), forming a clear indication at the defect. MT is fast, economical and more sensitive than visual inspection for fine surface cracks.
High-frequency sound waves are sent into the material with normal and angle-beam probes. Echoes from internal flaws are displayed on a digital flaw detector and evaluated for location, depth, length and amplitude against the applicable acceptance code. UT checks the full volume of the weld and is the main method for thick sections and critical butt joints.
A coloured (red, visible) or fluorescent penetrant is applied to a clean surface and drawn into open defects by capillary action. After the excess is removed, a developer draws the penetrant back out, showing the defect as a sharp, visible indication. PT works on almost any non-porous material, including non-magnetic metals where MT cannot be used.
A pulse-echo thickness gauge measures remaining wall thickness from one side only, often through paint or coating. Readings are taken on a grid or at marked locations and compared with the nominal or minimum required thickness to calculate metal loss, corrosion rate and remaining life.
Vibration readings are taken at the bearing locations of running machines in the horizontal, vertical and axial directions. Overall levels are compared with severity limits, and FFT spectrum analysis identifies the root cause, so maintenance can be planned before a breakdown. Baseline and periodic surveys support a predictive maintenance programme.
Sound levels are measured with a calibrated sound level meter at workstations, around equipment and at plant boundaries. Results are presented as a noise map showing zones above permissible limits, with recommendations for hearing protection, enclosures or engineering controls.
