In the mineral processing industry, separating weakly magnetic minerals such as hematite, limonite, manganese, ilmenite, and wolframite has always been a technical challenge. At the same time, iron removal and purification of non-metallic minerals like quartz, feldspar, and kaolin place high demands on separation equipment. Customers repeatedly ask: Can recovery of weakly magnetic minerals be improved? Does the equipment clog easily when processing fine particles? Can concentrate grade meet standards consistently? How reliable is long-term operation? The wet high intensity magnetic separator designed as a Vertical ring magnetic separator was developed to overcome these separation challenges.

What Is a Wet High Intensity Magnetic Separator and Vertical Ring Magnetic Separator?
A wet high intensity magnetic separator is a strong magnetic wet separation device specifically designed for weakly magnetic and non-magnetic ores. The Vertical ring magnetic separator uses a unique magnetic circuit design that generates a magnetic field strength above 1 Tesla in the separation zone. The magnetic field is uniformly distributed, with no magnetic flux leakage points in the separation area. The equipment uses a vertical rotating ring, counter-current concentrate flushing, and is equipped with a pulsation mechanism. The pulsation speed can be precisely adjusted via a variable frequency drive to suit different mineral separation requirements. It offers high recovery, resistance to clogging, strong adaptability to feed particle size and concentration fluctuations, reliable operation, and convenient maintenance.
How Vertical Ring Magnetic Separator Achieves High Intensity Separation
The Vertical ring magnetic separator consists of a frame assembly, upper and lower magnetic yokes, ring assembly, feed hopper, flushing hopper, concentrate collection device, matrix boxes, tailings box, pulsation mechanism, oil-cooled excitation coil, oil cooling system, and control system. The coil uses a fully sealed oil-cooled external circulation method. The internal coil is completely immersed in transformer oil. The coil adopts a laminar interval distribution. A dedicated transformer oil pump circulates the oil. Heat is dissipated through a condenser with forced air cooling by axial fans. This delivers low temperature rise, slow coil aging, long service life, and no pollution—replacing traditional water cooling. This oil cooling system is a key feature of the wet high intensity magnetic separator.
Working Process and Pulsation Mechanism of Vertical Ring Magnetic Separator
During separation, the ring rotates in a set direction. Slurry enters the feed hopper through the feed pipe and flows through the ring along the upper gap of the magnetic system. Inside the ring, induction magnetic media made of high-permeability stainless steel rods are magnetized in the background magnetic field. A very high gradient magnetic field forms on the surface of the magnetic media. Magnetic particles in the slurry are attracted to the media surface and carried by the rotating ring to the top non-magnetic zone. Flushing water then washes the magnetic material into the concentrate hopper. Non-magnetic particles flow along the lower gap of the magnetic system into the tailings hopper and are discharged.
When the pulsation mechanism’s diaphragm reciprocates, the slurry remains in a loose state throughout the separation process. This effectively eliminates mechanical entrainment of non-magnetic particles and significantly improves the grade of magnetic concentrate. The slurry pulsation also has a clear effect on preventing clogging of the magnetic media. The speed of diaphragm reciprocation can be controlled by adjusting the variable frequency drive of the pulsation motor to suit various materials. This pulsation feature makes the wet high intensity magnetic separator highly adaptable.
Customer Case: Wet High Intensity Magnetic Separator in Iron Ore Plant
An iron ore concentrator processed hematite with large grade fluctuations. Traditional magnetic separation equipment could not recover effectively. Magnetic iron content in tailings was high, causing serious resource waste. After introducing the wet high intensity magnetic separator, the pulsation mechanism kept ore particles in a loose state during separation. Mechanical entrainment of non-magnetic particles was effectively eliminated. Concentrate grade improved significantly, and tailings grade dropped noticeably. The plant increased concentrate production by thousands of tons annually, achieving outstanding economic benefits. The plant’s beneficiation manager stated that the Vertical ring magnetic separator operates smoothly and reliably. Pulsation parameters can be flexibly adjusted according to ore properties. It has strong adaptability to feed fluctuations and is convenient to maintain. This case demonstrates the practical value of the wet high intensity magnetic separator in real production.
Applications of Vertical Ring Magnetic Separator
The Vertical ring magnetic separator is suitable for wet separation of weakly magnetic metal ores with particle sizes below -1.3 mm (-200 mesh accounting for 30% to 100%), such as fine red ore (hematite, limonite, siderite), manganese ore, ilmenite, and wolframite. It can also be used for separating black and white tungsten, separating wolframite from cassiterite, and iron removal and purification of non-metallic minerals such as quartz, feldspar, nepheline, and kaolin. The wet high intensity magnetic separator delivers stable separation performance and reliable oil cooling. Its flexible pulsation adjustment solves real weakly magnetic mineral separation challenges and helps improve comprehensive utilization of mineral resources. If you are struggling with unsatisfactory recovery of weakly magnetic minerals, the Vertical ring magnetic separator is a choice worth serious consideration.
Conclusion: Choose Wet High Intensity Vertical Ring Magnetic Separator
The wet high intensity magnetic separator and Vertical ring magnetic separator provide powerful magnetic force for weakly magnetic mineral processing. With high recovery, clog resistance, strong adaptability, and reliable oil cooling, they help concentrators improve concentrate grade and reduce tailings loss. From hematite to manganese, from tungsten to non-metallic mineral purification, the wet high intensity magnetic separator and Vertical ring magnetic separator are the equipment of choice. Contact us today for a free application review and find the right Vertical ring magnetic separator for your production line.
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