Permanent Magnet Dry Roll Magnetic Separator

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Product Details

Permanent Magnet Dry Roll Magnetic Separator (Dry Mag Roll)

The Dry Roll Magnetic Separator is a high-intensity magnetic separation equipment designed for dry ore processing. It uses powerful*Neodymium (NdFeB) permanent magnets to generate a field strength up to 16000 Gauss.

Ideal for water-scarce areas, it effectively upgrades magnetic minerals like Ilmenite, Manganese, Chromite, and Monazite, or removes iron impurities from Quartz and Feldspar.

Working Principle: Dry Magnetic Separation

Separation based on magnetic susceptibility in a dry free-fall state.

Feeding

Dry crushed ore (usually <3mm) is fed uniformly onto the rotating magnetic roll via a vibrating feeder.

Magnetic Capture

Magnetic particles are attracted to the roll surface by the strong magnetic force and carried to the underside of the roll.

Discharge

Non-magnetic particles are thrown off by centrifugal force (parabolic trajectory). Magnetic particles are discharged when they leave the magnetic field zone.

Technical Choice: Dry Roll vs. Wet Magnetic Separator

Should you choose Dry or Wet separation? Here is the comparison:

Feature	Dry Roll Separator	Wet Magnetic Separator
Water Requirement	None (Zero water).	High (Needs water supply).
Particle Size	Coarser (0.1-5mm).	Finer (0-2mm).
Magnetic Strength	High (Up to 16000 Gauss).	Low to Medium (1000-6000 Gauss).
Material Condition	Must be dry (<5% moisture).	Slurry form.

Core Advantages

1. Flexible Configuration

Available in 1 to 5 roller configurations (decks). You can set different magnetic intensities for each roll to achieve Roughing, Cleaning, and Scavenging in one machine.

2. High Field Strength

Using top-grade Rare Earth Magnets, the peak field strength reaches 16,000 Gauss, capable of recovering weak magnetic minerals that others miss.

3. Low Operating Cost

No electromagnetic excitation required (saves electricity). No water consumption. Only a small motor drives the rollers.

Typical Applications

● Beach Sands:
Separating Ilmenite, Garnet, and Monazite from Zircon and Rutile. See Titanium Zirconium Solution.
● Impurity Removal:
Removing iron contaminants (Hematite, Biotite) from Quartz sand, Feldspar, and Kaolin to increase whiteness.
● Manganese & Chrome:
Dry concentration of Manganese oxide and Chromite ores.
● Rare Earth:
Pre-concentration of Wolframite and Tantalum-Niobium ores.

Technical Parameters

Model	Roll Qty	Roll Size (mm)	Field Intensity (Gs)	Capacity (t/h)	Power (kW)
YCG-150 (Lab)	1	φ100×150	12000-15000	0.1 - 0.5	0.75
YCG-1060	1	φ100×600	8000-15000	0.5 - 1.5	1.1
YCG-2260	2	φ200×600	8000-15000	1.0 - 2.5	2.2
YCG-1510 (Industry)	1	φ150×1000	8000-15000	2.0 - 4.0	1.5
YCG-3210 (3-Roll)	3	φ200×1000	8000-15000	3.0 - 6.0	4.5
YCG-3215 (High Cap)	3	φ200×1500	8000-15000	5.0 - 10.0	7.5

Frequently Asked Questions (FAQ)

Q: How dry should the material be?

A: The feed material must be free-flowing. Ideally, moisture content should be less than 1%. If it's above 5%, drying equipment (Rotary Dryer) is required.

Q: Can I adjust the magnetic strength?

A: The magnet itself is permanent (fixed strength), but you can adjust the Roll Speed and the Splitter Board position to control the grade and recovery.

Q: How many rolls do I need?

A: For simple iron removal, 1 roll is enough. For mineral purification (e.g., Zircon), a 2 or 3-roll system is recommended to separate minerals of different magnetic susceptibilities progressively.

Waterless Magnetic Separation

Upgrade your mineral value with OreSolution Dry Roll Magnetic Separator.
Contact us for custom roll configurations and factory prices.

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