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Magnetic Analysis Corp
Stand: 7A F19

Magnetic Analysis Corp (MAC) will be featuring the Minimac® II at its stand at the Düsseldorf wire and Tube 2024 show.

The Minimac II is the latest addition to MAC's range of eddy current test instruments for detecting surface and sub-surface defects such as laps, slivers and cracks in non-ferrous and ferrous wire and rod. It features an embedded processor host computer and can be supplied with one or two test channels. Its versatility allows it to be used in a wide range of applications in wire and rod mills during production.

The user can customise the defect types, each based on a specific threshold gate; specify the maximum number of defects for each grade level; and configure categorised reports. Based on the report, the producer can draw down higher graded wire to even smaller diameters. Lower grades are not drawn down as much to avoid problems with breakage in the wire, which could end up causing downtime to re-thread the drawing machine.

A magnetic inclusion detector (MID), operating in combination with the flaw detectors, can detect magnetic inclusions, often introduced by steel wire brushes during processing.

In another application, a Minimac II can be installed in a wire mill to inspect zirconium, copper and beryllium copper alloys, to detect defects including surface flaws in plating and sub-surface anomalies in bonding, and inclusions in multiple layers in wire ranging from 0.838 to 6.35mm diameter (0.033" to 0.25").

A noise-cancelling test coil and bushings provide improved performance by minimising noise from mechanical vibration in the wire which otherwise might interfere with the test.

Minimac II can also be used to inspect continuous copper rod, used as feedstock in the production of wire copper strips. Rods ranging from 0.5 to 3.5mm (0.01968" to 0.13778") are tested for external defects such as scratches, dents and gaps at speeds up to 20m/s.

Welding wire can also be tested, including flux core wire where missing flux can be detected as well as flaws in the wire itself. Checking continuity and locating welds in single and multi-conductor insulated wire and cable are other applications.

MAC engineers will be available at the stand to provide information on the company's full range of products, including the MultiMac® eddy current tester with up to eight test channels, Rotomac® eddy current rotaries for detecting long, continuous surface seams, and ultrasonic instruments and systems.