Johnson & Allen are a British manufacturer of Magnetic Particle Inspection (MPI) and Dye Penetrant Inspection (DPI) Equipment for Non-Destructive Testing (NDT). We design and manufacture standard and bespoke systems including dye penetrant lines, MPI bench units and power packs, handheld UV lights, magnetic yokes and an extensive range of magnetic particle and dye penetrant consumable products including; White contrast paints, magnetic inks, dye penetrants and developers.
Magnetic Particle Inspection (MPI):
Johnson and Allen offer a range of products for use in Magnetic Particle Inspection (MPI) - Covering everything from large inspection lines and bench units, handheld electro-magnets or "Yokes", permanent magnets, MPI consumables and more. We also offer an in-house design and build service for customers with more unique requirements
Dye Penetrant Inspection (DPI) :
Johnson and Allen offer a range of products for use in Dye Penetrant Inspection (DPI) - Covering everything from large inspection lines, wash stations, drying ovens, storm cabinets, DPI consumables and more. We also offer an in-house design and build service for customers with more unique requirements
DPI / MPI Line Systems:
