Specification Brand : CMS MAGNETICS BulletPoint1 : MAGNETIC STRENGTH (GRADE 8) - Chemical compound of permanent ferrite magnets is SrO-6 (Fe2O3), a combination of strontium carbonate and iron oxide. These type of ceramic magnets are graded on a scale of 1-8 with 8 providing the strongest magnetic applications. BulletPoint2 : MAGNETIC APPLICATIONS - Ceramic magnets are used in magnetic assemblies designed for lifting, holding, retrieving, and separating. Good for tool racks, cabinet fixture, magnetic car mounting, fishing, and other creative use. BulletPoint3 : AS COMPARED TO NEODYMIUM - Good balance of magnetic strength, resistance to demagnetization, anti-corrosive properties, and economical. However, ferrite is much more brittle to use especially on direct contact with another heavy object when attracted. BulletPoint4 : PULL FORCE - Listed pull force results are lab tested for industry standards against a steel plate in horizontal position. Actual performance may vary depending on the variables like friction, gravity, lubrication, and surface. For horizontal applications, the performance will be close to the listed pull force. For vertical placement, performance may vary 15-30% of the listed pull force. BulletPoint5 : WARNING: Magnetics are strong and may pinch your fingers when have two more magnets close together. Keep away from children, supervision is advised. Keep magnets away from pacemakers. Ceramic magnets are brittle and may crack or fragment into pieces when colliding with another object with great force. Color : Black ExternallyAssignedProductIdentifier1 : 819060012638 ExternallyAssignedProductIdentifier2 : 0819060012638 FabricType : Rubber FitType : Universal Hazmat1 : MAGNETIZED MATERIAL Hazmat10 : EG_NoAir Hazmat11 : ES_NoAir Hazmat12 : FR_NoAir Hazmat13 : GB_NoAir Hazmat14 : IN_MagnetizedMaterial Hazmat15 : IT_NoAir Hazmat16 : JP_NoAir Hazmat17 : MX_MagnetizedMaterial Hazmat18 : NL_NoAir Hazmat19 : PL_NoAir Hazmat2 : UN2807 Hazmat20 : SA_NoAir Hazmat21 : SE_NoAir Hazmat22 : SG_NoAir Hazmat23 : TR_NoAir Hazmat24 : US_MagnetizedMaterial Hazmat25 : US_MagnetizedMaterial Hazmat26 : ZA_NoAir Hazmat27 : 9 Hazmat3 : 9 Hazmat4 : AE_NoAir Hazmat5 : AU_NoAir Hazmat6 : BR_MagnetizedMaterial Hazmat7 : CA_MagnetizedMaterial Hazmat8 : CN_MagnetizedMaterial Hazmat9 : DE_NoAir IncludedComponents : Grade 8 Ferrite Magnets with Chrome Plated Steel Cups ItemName : CMS MAGNETICS - 3-Pack RB70 C8 Ceramic Ferrite Round Base Magnet with Anti-Corrosion Chrome Plated Steel Cup and 80 LB Pull Force - Cup Diameter: 67.1mm, Center Hole: 7mm, Thickness: 9.6mm ItemPackageDimensions_Height : 9.0932 centimeters ItemPackageDimensions_Length : 5.588 centimeters ItemPackageDimensions_Width : 8.7122 centimeters ItemPackageQuantity : 1 ItemShape : Round ItemShape1 : Round ItemShape2 : Cylindrical ItemTypeKeyword : industrial-rare-earth-magnets Manufacturer : CMS MAGNETICS Material : Ferrite Magnet, Chrome Plated Steel Cup Material1 : Iron Material2 : Neodymium ModelName : Parking Gadgets ModelNumber : RB70 NumberOfBoxes : 1 NumberOfItems : 3 NumberOfLithiumMetalCells : 1 NumberOfPieces : 3 PartNumber : RB70-3 ProductDescription : CMS MAGNETICS Round Base Cup Magnets (Pot Magnets) Magnet Material: Ceramic Ferrite (Fe2O3) Magnet Strength: Grade 8 (strongest of the ferrite type magnets) Cup Material: Chrome Plated Stainless Steel SPECIAL PROPERTIES: Advantages - Both the ferrite magnets and chrome plated stainless steel cups are resistant to corrosion, thus providing a long lasting solution for your applications as compared to the metallic neodymium magnets. - Magnet is stronger with the ferrite side facing outwards towards the object it will magnetically attract. Disadvantages - Magnet is weaker if installing the stainless steel cup side facing outwards but will better protect the ceramic ferrite inside. - Ferrite can be brittle and may chip if not careful when placing attracting heavy metal objects towards it. It is suggested that object placement should cover the outer protective steel cup perimeter PULL FORCE: Horizontal vs Vertical Placement Pull force is the force that’s required to pull a magnet away from a steel plate vertically, such as from the underside of a steel beam or table. If you aren’t using your magnet in a vertical application, but in a horizontal application, such as to the front of a refrigerator or filing cabinet, it will not hold its listed pull force. The magnetic force will pull the magnet straight towards the steel door as gravity tries to pull the magnet down to the floor. Friction between the magnet and door is what prevents it from sliding all the way down to the floor. This is referred to as shear force. It will have a much smaller maximum value, somewhere between 15 and 30% of the pull force, but is too difficult to predict as there are too many variables between the two materials and any lubrication there might be on the surfaces. APPLICATIONS: - Do-it-yourself (DYI) projects - Magnetic tool holder for tool rack organization - Cabinet holding base fixture - Retrieving objectives - Fishing - Treasure hunting - Car signs holding ProductSiteLaunchDate : 2007-07-26T16:31:28.157Z PullForce : 355.86 newtons Size : 67.1mm Style : 3-Pack SupplierDeclaredDgHzRegulation : unknown SupplierDeclaredHasProductIdentifierExemption : 1 UnitCount : 3 UnspscCode : 31380000