"Capturing Metal Trash and Fines including 316 stainless steel as small as 0.0001 inches"


Frequently Asked General Questions

How Strong is My Magnet?

Magnetic strength is measured in terms of Gauss. Gauss is the amount or number of lines of magnetic flux per square centimeter. The strength of a magnet is calculated using either a “Pull Test” in which the force needed to pull a piece of steel from the face of magnet is measured or by an electronic Gaussmeter. The pull test usually requires disassembly of the magnetic separator and with more powerful magnets puts the operator at risk. CESCO sells an easy-to-use Magnet Metrics Kit including a digital Gaussmeter. For more information, click on the "Gaussmeters" button on the tool bar at the top of this page.

How Much “Trash” Will a Magnetic Separator Capture?

Magnetic separation efficiency is dependent on several factors including strength and gradient of the magnetic field, size and composition of the metal trash, distance between the trash and the magnet, viscosity of the product, and the rate of product flow. Customers have found their magnetic separators to operate at as much as 99% efficiency. CESCO can provide data that based on another customer’s experience, will suggest what your efficiency in a given application might be.

What Can a Magnet Separator Capture?

Iron, nickel, cobalt, and 304, 316, 410, 420, and 430 stainless steel shear are routinely captured in beverage, chemical, food, and pharmaceutical applications by CESCO’s magnetic separators.

What Effect Does Temperature Have on Magnets?

Magnets have “maximum” working temperatures or a temperature that causes the magnet to have a permanent loss of strength. This is called the Curie temperature. In the unlikely event that a magnet is raised to its Curie temperature the magnet will have to be replaced. If the magnet’s temperature is elevated, but the Curie temperature is not exceeded, the magnet will recover all of its magnetism when the temperature returns to normal. Ceramic, Samarium Cobalt, Alnico, and Neodymium magnets all have different Curie temperatures. Making  CESCO aware of the normal operating temperature for your process will allow us to supply the correct magnet or magnets for your application.

How is Most Metal Trash in Processing Lines Generated?

Nickel plating on cast iron machinery can peel or chip, stainless steel can be sheared, abraded, cut or torn off mixer blades, kettle sides, pump parts, or cutter blades, but all can be successfully removed by CESCO Magnetic Separators placed on line.

Can CESCO Repair MagTraps or other brands of in-line separators that have been dropped or bent?

Yes, if a separator has been dropped, usually only one edge or a portion of the flange will have been bent and it can be straightened. You can check your separator for bent flanges by placing a non-magnetic straight edge across the diameter of the face of the magnetic base and across the separator’s “O” ring groove surface looking for areas that are not flat. CESCO is also expert at making repairs to competitor’s separators when a weld has broken or one or more tubes become bent in service.

What Gaskets are available for MagTraps?

Buna-N (Nitrile)

Temperature range from -65⁰ F. to 250⁰ F. with characteristics that make it superior to most elastomers when measured for compression set, cold, flow, tear and abrasion resistance. Buna-N “O” rings should not be used with strong acids or steam, stored in direct sunlight, or near electric motors that generate Ozone.

EPDM (Ethylene Propylene Diene Monomer)

Temperature range from 65⁰ F. to 300+⁰ F. or 350⁰ F. with steam.  EPDM “O” rings should not be used with products whose recipe includes petroleum or vegetable based oils.

Viton (Fluorocarbon Rubber)

Temperature range from 20⁰ F. to 400⁰ F. with characteristics that make it superior with most aromatic solvents, synthetic lubricants, nitric and hydrochloric acids. Viton “O” rings should not be used with steam.

How can we determine the right MagGrate, MagDuct, or MagPlate Configuration for our Product?

Almost all MagGrates, MagDucts and MagPlates are custom fabricated to a specific application. There are many variables to consider including product flow, particle size, multiple magnetic fields, maximum temperatures, the need for full sanitary construction, and the installation configuration. Please call customer service and ask for engineering to ensure the proper design for your application.

All application specific CESCO Magnetic Separators are powered by magnets configured to form a magnetic field appropriate for the task.  


Metal Separation

Magnetic Filter

Magnetic Plate

Magnets for Liquids

Magnetic Equipments


    Allen Canning Co.
    American Licorice Co
    Bama Pie Ltd.
    Basic American Foods
    Beatrice Companies Inc.
    Beech-Nut Nutrition Corp
    Ben & Jerry's
    Best Foods / Hellman's
    Binney & Smith
    Bloomer Chocolate Co.
    Blue Diamond Growers
    Bordens Inc.
    Brown & Haley
    Bush Brother's & Co.
    C & H Sugar
    Cadbury Schweppes Inc
    Campbell Soup Co.(s)
    Carnation Co.(s)
    Case Swayne Co.
    Chef Francisco, Inc.
    Churney Cheese
    Coca-Cola Co., Foods Div.
    Dairyman's Co-op Assn
    Del Monte Corp.
    Diamond Sunsweet
    Dole Foods
    Don Miguel Foods Inc
    Entenmann's Baking
    FDL Foods
    Fantasy Flavors
    Fiesta Canning Co
    Folgers Coffee Co.
    Friskies Pet Care
    Frito-Lay Inc.
    The Garlic Company
    General Foods Corp.
    General Mills Co.
    Gerber Products
    Ghiradelli Chocolate
    Green Giant Co.
    Haagen-Dazs Co.
    H.J. Heinz
    Hershey Foods Corp.
    Geo. A. Hormel & Co.
    Hunt Wesson
    Iowa Beef Products
    Kal Kan Foods
    Kerr Concentrates
    Knott's Berry Farm Foods
    Kraft Foods
    Kraft Dairy Group
    Kroger Co.
    Lamb-Weston Inc.
    Lee Kum Kee
    Leprino Foods
    Land O'Lakes Inc
    Lennox Fine China
    M & M/Mars
    McCormick & Co.
    Oscar Mayer Foods Corp.
    Mrs. Smith Frozen Foods
    Nabiscos Inc.
    Nalley's Fine Foods
    Nestle Food Corp.
    Neese Country Sausage
    Ocean Spray Cranberries
    Ore-Ida Foods, Inc.
    Pet, Inc.
    Pillsbury Co.
    Planter Peanuts
    Portion-Pac, Inc.
    Proctor & Gamble Co.
    The Quaker Oats Co.
    Ralph's Grocery
    Ralston Purina Co.
    Ramsey / S.I.A.S.
    Rich Products Corp.
    Ross Laboratories
    Sara Lee Corp.
    Pace Foods Inc
    Van den Bergh Foods Co.
    Safeway Stores
    SK Foods
    J.M.Smucker Co.
    A.F. Staley Co.
    Star-Kist Food Inc.
    Stokely USA, Inc.
    Stouffer Foods Corp.
    Sunkist Growers Inc.
    Sun-Maid Growers
    Tree Sweet Products
    Tyson Foods
    Tri-Valley Growers
    Van Camp Seafood Co
    Vlasic Foods, Inc
    Weight Watchers Foods
    Wyeth Laboratories

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