Magnetic particle testing uses electrically induced magnetic fields in parts made from ferromagnetic materials to detect flux leakage at the site. Primarily used for surface and sub-surface defects. The speed and relative simplicity of this technology make it ideal for high volume applications.
While limited to examining parts made from iron and steel which are strongly affected by magnets (ferromagnetic), magnetic particle testing is, none the less, very useful for detecting minute surface and near-surface cracks down to a depth of about 0.100”.
A magnetic field is induced in the test specimen, which is then “dusted” with iron particles, either dry or in a liquid suspension. The particles will collect along the edges of any cracks or other discontinuities that distort the induced magnetic field to provide a readily visible indication of the flaw.
High volume applications
Magna Chek is equipped to perform magnetic particle testing on a wide variety of parts in terms of both size and geometry. Testing is provided on a single part or on large lots at rates up to 1,500 parts per hour.
12 ft Wet Magna-Glo Unit our 6,000 amp wet magna glo unit with a secondary 2,000 amp coil accommodates parts from 1” to 12’ long and up to 24 inches in diameter. The production rate is approximately 1,000 pieces per hour. Utilization of the secondary coil operation allows us to perform head and coil inspection simultaneously.
Conveyorized Two-Shot Magna-Glo Unit with an automatic coil, de-magnetizer and conveyor handles up to 1,500 pieces per hour and is ideal for high volume parts such as bolts and screws, etc.
Conveyorized Duo-VEC Wet Magnetic Particle Inspection induces a multivector field in the part to detect both longitudinal and transverse defects. This specially designed unit is ideal for irregular part configurations up to 24” long such as connecting rods, steering arms, yokes, suspension components, small forgings and castings.
Mobile magnetic particle units
These units may be equipped with a wide variety of NDT units as required by the customer: Magnetic Particle AC and DC units up to 4,000 amps, Penetrant equipment and materials capable of fluorescent and constant dye inspection, portable ultrasonic and X-ray equipment. Combining this equipment, we can schedule a multiple approach to your materials, and discover both surface and sub-surface discontinuities. We are available for on-site inspection of power generating turbines, boilers, pressure, vessels, structural weld joints, crane assemblies and hooks, handling equipment and pipelines.
Email or call us today for a quote on your particular project.