Ohio Magnetics, Inc.

A member of the HBD Industries, Inc. family of companies

Performance-engineered magnetic materials handling equipment and systems for lifting, separation & metal detection

Magnetic Separators and Metal Detectors

Magnetic Separation

Magnetic Separators (index)

    Drum Separator

        Electromagnetic

          Radial Pole LD Drum

          Axial Pole LD Drum

       Permanent Magnet

          LDP Magnet Drum 

          510/520/530 PM Drum 

          WPD (Wet PM Drum)

          HV High Volume WPD

    Over-the-Belt Separator

       Rectangular

          PM Susp. Magnets

          Electro. Susp. Magnets

       In-line Self-Cleaning

       Cross-Belt Self-Cleaning

Magnetic Pulleys

    Permanent Magnet Pulleys

    Electromagnetic Pulleys

Plate Magnets

Grate Magnets

Floor/Road Sweepers

Metal Detection

Metal Detectors

Accessories

DC Power Supplies

Repairs

Home / Stearns / Magnetic Separators / WPD Drum Separators

WPD Wet Magnetic Drum Separators

The Engineer's Choice for Heavy-Media Separation Systems.

Stearns’ Drum-Type WPD Separator is a powerful example of years of experience in magnetic technology, design and manufacturing excellence. Wet drum separators are used in magnetic media recovery, purification of solids carried in liquid suspension, and iron ore concentration. Stearns has developed a specific line of wet drum separators for handling slurries developed in heavy media plants. This high performance separator has attracted the respect of the coal industry and other demanding users.

These heavy-media plants require:

• Magnetic separators which recover magnetics contained in feed slurries as efficiently as possible, to reduce the per ton / media consumption of treated product to a minimum.

• Recovery of magnetic solids in as clean a magnetic concentrate as possible, to keep the separating bath at a low viscosity and to eliminate misplaced product.

• A high gravity magnetic discharge to eliminate, in many instances, the need for a densifier and to simplify operations.

• Trouble-free operation with minimum downtime, minimum operator attention and minimum maintenance cost.

See Factors Influencing Separator Selection for information on determining equipment selection.

Typical Applications

• Heavy-Media Processing (coal, iron)

• See our HV High Volume WPD Separator for higher-volume applications

Features

• Exceptionally high magnetic recovery and discharge

  • Recover magnetics contained in feed slurries

  • Reduce per ton/media consumption of treated product

  • Recover magnetic solids in as clean a magnetic concentrate as possible

  • Keep separating baths at low viscosity

  • Eliminate misplaced product

• Permanent magnet assembly eliminates coil burn-outs

• In many instances, eliminate the need for a densifier

• Manufactured in con-current and counter-current models

• Available in single or multiple drum applications

• Offered in 30”, 36” and 48” diameters

• Offered in all standard magnetic widths: 24”, 36”, 48”, 60”, 72”, 84”, 96”, 108” and 120”

  • 30", 36" and 48" diameter wet drum separators are recommended for heavy media applications

  • Con-current, counter-current and double-drum separators are available in 30", 36" and 48" diameters and in all standard magnet widths

• Requires a minimum of operator attention

• Lightweight, cost competitive and easy to install and maintain

• Rugged reliability from stainless steel tanks and cover

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Factors Influencing Separator Selection

Model MI (Con-Current Style): The con-current single drum WPD separator is probably the most commonly used type in heavy media, providing minimum wear on the cylinder, maximum cleaning of magnetic solids, automatic return of material to the feed point, and the highest magnetic solid discharge.

Model MIC (Counter-Current Style): The counter-current single drum WPD separator provides maximum magnetic recovery, handles heavy magnetic loads, reduces susceptibility to loss of magnetic efficiency at high feed volumes, and allows magnetic discharge on the feed side of the separator to allow easier plant layout.

• Feed volume should not exceed 75 gpm per foot of magnet width on a 30" diameter, single-drum separator.

• Similarly, the ratio of magnetic solids to non-magnetic solids should not exceed 15-20 percent for concurrent separators.

• Furthermore, single-drum 30" diameter con-current separators should be limited to 3 tph of magnetic discharge per foot of magnet width. Counter-current separators can retain magnetic recovery at a discharge rate 30 percent higher than con-current units.

• If feed volumes up to 90 gpm per foot of magnet width must be handled, a double drum separator should be applied. Similarly, if the ratio of magnetic solids to non-magnetic solids exceeds 20 percent, Stearns recommends the use of a double drum separator.

• The double drum WPD separators (available in double con-current arrangements or con-current primary with counter-current secondary arrangements) can either (1) give a higher magnetic recovery as compared to single drum units or (2) permit higher feed volumes while obtaining the same recovery as single drum separators.

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To get a customized solution for your specific application, contact the factory, or talk with the Stearns rep / dealer nearest you.