Stationary unit of contact and yoke type in the medium range. Output of 2500 Amp Ac in 6 steps for circular magnetisation and 15 kilo Ampere Turns DC in 6 steps for longitudinal magnetisation. .Suitable for detection of surface and near surface cracks in ferromagnetic components upto 600 mm long. 80 mm dia and 50 kg weight. Facility for combined magnatisation by simultaneous application of circular and longitudinal field provided. Dark room an integral part of the unit. Demagnetisation by separate damagnetiser. HWDC facility for detection of sub-surface cracks and inclusions provided optionally.