Welcome to Johnson & Allen Ltd - NDT Systems

Manufacturers of MPI equipment and DPI Equipment for NDT. We cover UV Lights, MPI Bench Units, Electromagnets and supply a range of consumables which include Magnetic Particle and Dye Penetrant products.

Johnson and Allen have been the market leaders in the supply of crack detection equipment and consumables for over 75 years, with a wealth of experience in both MPI and DPI Systems.

Johnson and Allen's quality system is registered by BSI (FM09387 applies)