MD-4K flaw detector is intended for detection of surface defects, such as metal discontinuity by magnetic particle technique on local sections of large-dimension parts by creating impressed magnetostatic field. Permanent magnets are used as magnetization elements. Thus, flaw detector does not require power supply what allows to apply it in explosion and fire hazard mediums, on building grounds, assembly and welding areas, during inspection of high pressure equipment, internal surfaces of vessels and tanks, weld joint, pipelines in field conditions.

Updated MD-4KМ is completed with a set of terminal caps of various configuration and cable bridge, and equipped with hard permanent magnet from Fe-Nd-B alloy. Due to the performed modernization MD-4KМ becomes almost universal magnetic flaw detector which enables to test parts of irregular shape and structure.