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Magnetized through the thickness: the poles are on the top and bottom faces.NS
Magnetization directionMagnetized through the thickness: the poles are on the top and bottom faces.Arrows show the direction of magnetization inside the magnet, pointing toward north.

N42 neodymium block magnet measuring 2 × 1 × 1/2 inch. Through-thickness magnetization with Ni-Cu-Ni plating, 5,499.69 gauss surface field, and a listed 139.68 lb pull force. SKU 8309.

⬇ Download CAD STEP / STL / DXF / PDF drawingnominal geometry, pre-filled with this part’s dimensions

8309 – N42 Neodymium Block Magnet 2 × 1 × 1/2 in

Description
Additional information
Downloads
Magnetization
Coatings
BH Curves

N42 neodymium block magnet measuring 2 × 1 × 1/2 inch (SKU 8309) provides a large rectangular working face for fixtures, magnetic separation, holding, prototypes, and industrial assemblies. It is magnetized through the 1/2-inch thickness.

Specifications

Magnet size 2" × 1" × 1/2"
Tolerances ±0.004"
Material Rare-earth NdFeB
Grade N42
Coating Ni-Cu-Ni
Br (typical) 13,150 gauss
BHmax (typical) 42 MGOe
Maximum operating temperature 80°C / 176°F
Magnetization direction Through thickness
Surface field 5,499.69 gauss
Listed pull force 139.68 lb

Block Magnet Design and Safety Notes

The listed pull force is a comparison value under defined axial pull-off conditions, not a universal safe working load. Air gaps, target-steel thickness, surface finish, contact area, load direction, vibration, and temperature can reduce usable holding force.

This large N42 block can create severe pinch hazards and may chip if allowed to snap against another magnet or steel surface. Use nonmagnetic spacers, controlled handling fixtures, and an appropriate engineering safety factor during assembly and testing.

Use the Magnet Pull Force Calculator for preliminary estimates and compare grades in the Neodymium Magnet Grade Chart.

Browse more block magnets, or submit the Magnet RFQ Builder for production quantities or a custom requirement.

N42 neodymium block magnet calculator output

Weight 0.270955 lbs
Dimensions 2 × 1 × 0.5 in
Pull Force

100lbs-200lbs

Shape

Block / Bar

Downloads

8309 – Drawing PDF Format

8309 – Certificate of Compliance

8309 – Neodymium Properties Chart

8309 – Magnet Manufacturing Process

8309 – REACH Report

8309 – ROHS Report

If you can’t find what you want, just send us an inquiry and we will be happy to make it for you!

Magnetized through the thickness: the poles are on the top and bottom faces.NS
Magnetization directionMagnetized through the thickness: the poles are on the top and bottom faces.Arrows show the direction of magnetization inside the magnet, pointing toward north.

Coatings

Surface Coating Thickness(microns) Color Resistance
Passivation 1 Silver Grey Temporary Protection
Nickel Ni Ni
Ni Cu Ni
10-20 Bright Silver Excellent Against Humidity
Zinc Zn
Cu Zn
8-20 Bright Blue
Shinny Color
Good Against Salt Spray
Excellent against Salt Spray
Tin Ni Cu Sn 15-20 Silver Superior Against Humidity
Gold Ni Cu Au 10-20 Gold Superior Against Humidity
Copper Ni Cu 10-20 Gold Temporary Protection
Epoxy Epoxy
Ni Cu Epoxy
Zn Epoxy
15-25 Black, Red,
Grey
Excellent Against Humidity
& Salt Spray
Chemical Ni 10-20 Silver grey Excellent Against Humidity

BH Curves

396 in stock (can be backordered)

Quantity Price Per Magnet
1 - 9 $30.00
10 - 49 $28.16
50 - 99 $27.00
100 - 999 $25.50
1000 - 4999 $21.00
5000 - 9999 $18.00
10000 + $15.00
EAN / UPC: 794969913364GTIN: 794969913364 SKU 8309 Categories , Tags , ,
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