A magnetic separator is a screening device utilized in recycling processes to remove ferrous particles—such as iron powder—from powdered or granular materials. It employs carefully selected ferrite materials, or a composite structure combining ferrite with rare-earth magnets. The average magnetic induction strength on the drum surface ranges from 100 to 600 mT; depending on user requirements, various configurations—including co-current, semi-counter-current, and counter-current types—can be provided. The device features a simple structure, high processing capacity, convenient operation, and ease of maintenance.
Depending on the operating mode, magnetic separators can be classified into dry and wet types. These machines are suitable for the wet magnetic separation of materials—such as magnetite, pyrrhotite, roasted ore, and ilmenite—with a particle size of less than 3 mm; they are also utilized for iron removal operations involving coal, non-metallic minerals, and construction materials. Consequently, they are widely used and highly versatile pieces of machinery.
After the ore slurry flows from the feed box into the tank, the water jets from the feed spray pipe cause the ore particles to enter the tank's feed zone in a loosened state. Under the influence of the magnetic field, magnetic particles undergo magnetic flocculation, forming "magnetic clusters" or "magnetic chains." Subjected to magnetic forces within the slurry, these clusters or chains migrate toward the magnetic poles and become adsorbed onto the rotating drum.
Because the magnetic poles are arranged in an alternating pattern along the direction of the drum's rotation—while remaining stationary themselves during operation—the magnetic clusters or chains experience a "magnetic agitation" effect as they rotate with the drum. During this agitation, non-magnetic minerals (such as gangue) that were entrapped within the clusters or chains are dislodged; the magnetic clusters or chains that ultimately remain adsorbed to the drum's surface constitute the concentrate.
The concentrate travels with the rotating drum to the periphery of the magnetic system—where the magnetic field strength is weakest—and is discharged into the concentrate chute by the flushing action of water jets from the discharge spray pipe. (In the case of a fully magnetic roller, discharge is accomplished using a brush roller.) Non-magnetic or weakly magnetic minerals remain suspended in the slurry and are discharged from the tank along with the fluid, constituting the tailings.
Suitable for iron removal operations in coal mines, foundry sand processing, refractory materials production, and various other industrial sectors.
Compared to conventional magnetic separation equipment, this separator features a magnetic system design enhanced with high-performance permanent magnets, ensuring no loss of magnetic properties even under high-flow conditions.
Used in the ceramics industry to remove iron impurities mixed within ceramic clay, thereby significantly improving the overall quality of the finished ceramic products.
Employed in the closed-circuit reduction roasting of hematite to separate incompletely reduced raw ore, allowing it to be recycled and returned for further roasting.
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| Model | Shell diameter （mm） |
Shell lenght （mm） |
Shell rotation speed（r/min） |
Feeding size （mm） |
Processing capacoty （t/h） |
Power（kw） |
| CTB6012 | 600 | 1200 | <35 | 2-0 | 10-20 | 1.5 |
| CTB6018 | 600 | 1800 | <35 | 2-0 | 15-30 | 2.2 |
| CTB7518 | 750 | 1800 | <35 | 2-0 | 20-45 | 2.2 |
| CTB9018 | 900 | 1800 | <35 | 3-0 | 40-60 | 3 |
| CTB9021 | 900 | 2100 | <35 | 3-0 | 45-60 | 3 |
| CTB9024 | 900 | 2400 | <28 | 3-0 | 45-70 | 4 |
| CTB1018 | 1050 | 1800 | <20 | 3-0 | 50-75 | 5.5 |
| CTB1021 | 1050 | 2100 | <20 | 3-0 | 50-100 | 5.5 |
| CTB1024 | 1050 | 2400 | <20 | 3-0 | 60-120 | 5.5 |
| CTB1218 | 1200 | 1800 | <18 | 3-0 | 80-140 | 5.5 |
| CTB1224 | 1200 | 2400 | <18 | 3-0 | 85-180 | 7.5 |
| CTB1230 | 1200 | 3000 | <18 | 3-0 | 100-180 | 7.5 |
| CTB1530 | 1500 | 3000 | <14 | 3-0 | 170-280 | 11 |
| Model | Feeding size （mm） |
Processing capacity （t/h） |
| CTB6012 | 2-0 | 10-20 |
| CTB6018 | 2-0 | 15-30 |
| CTB7518 | 2-0 | 20-45 |
| CTB9018 | 3-0 | 40-60 |
| CTB9021 | 3-0 | 45-60 |
| CTB9024 | 3-0 | 45-70 |
| CTB1018 | 3-0 | 50-75 |
| CTB1021 | 3-0 | 50-100 |
| CTB1024 | 3-0 | 60-120 |
| CTB1218 | 3-0 | 80-140 |
| CTB1224 | 3-0 | 85-180 |
| CTB1230 | 3-0 | 100-180 |
| CTB1530 | 3-0 | 170-280 |