JHCXG-8 magnetic tube using a new and exciting control the controllable power to the magnetic field strength of digital direct display, magnetic field strength stepless linear regulator, and the key parts made significant improvements to make it more rational structure, easy to operate, measurement accuracy, reliable operation. In order to ensure the accuracy of the measurement, each calibration of magnetic tubes are made of magnetic field strength. Full compliance with the "Coal Preparation magnetite powder test method" (GB / T18711-2002 Section VII) of the test equipment. The main technical parameters: a magnetic field parameters distance:. 52 mm b magnetic field strength:. 0-350 mT (digital display stepless adjustment) parameter a glass tube diameter:. 50 mm b movement stroke L:. 40 mm sample size < 0.5 mm Voltage: single phase AC 220V / 380V AC Weight: 258 kg Size: 1000 × 580 × 1300 mm (including stents and tanks)