Neodymium Block Magnets — N52 Rectangular & Square NdFeB Rare Earth Magnets
JC Magnetics stocks neodymium block magnets in N52 grade across a wide array of rectangular and square profiles, from compact 5×5×1mm wafers to large 50×25×10mm bars. N52 block magnets deliver the highest energy product available in standard rectangular geometry, making them the preferred choice for holding fixtures, magnetic clamping jigs, fabrication tooling, whiteboard and display mounting, cabinetry latches, and robotics end-effector assemblies. The rectangular geometry also makes block magnets ideal for linear actuator design, magnetic separation equipment, and custom magnetic circuit construction. Each unit is plated with Ni-Cu-Ni for surface protection and dimensional consistency. Engineers and fabricators rely on our N52 block magnets for applications requiring predictable, repeatable pull-force specifications across production runs.
Brand: JC-magnetics
Model: JCN52-BLK20105
20mm x 10mm x 5mm (25/32in x 25/64in x 13/64in)Neodymium Block Magnet – N52 Grade (Pull Force approx. 11.22 lbs).Key Features:Dimensions Metric: 20mm length × 10mm width × 5mm thickness
Dimensions Imperial: 25/32 inch length × 25/64 inch width × 13/64 inch thickness
Magnet to steel p..
$3.50
Brand: JC-magnetics
Model: JCN52-BLK20202
20mm x 20mm x 2mm (25/32in x 25/32in x 5/64in)Neodymium Block Magnet – N52 Grade (Pull Force approx. 6.95 lbs).Key Features:Dimensions Metric: 20mm length × 20mm width × 2mm thickness
Dimensions Imperial: 25/32 inch length × 25/32 inch width × 5/64 inch thickness
Magnet to steel pull..
$3.15
Brand: JC-magnetics
Model: JCN52-BLK20203
20mm x 20mm x 3mm (25/32in x 25/32in x 1/8in)Neodymium Block Magnet – N52 Grade (Pull Force approx. 10.27 lbs).Key Features:Dimensions Metric: 20mm length × 20mm width × 3mm thickness
Dimensions Imperial: 25/32 inch length × 25/32 inch width × 1/8 inch thickness
Magnet to steel pull ..
$3.95
-13%
Brand: JC-magnetics
Model: JCN52-BLK555
216pcs 5x5x5mm N2 | Pull Force: 3.12 LBDimensions: 5mm x 5mm x 5mm thickness, (0.197in x 0.197in x 0.197in) 13/64in x 13/64in x 13/64"Material Features: Neodymium (chemical symbol Nd) is element 60 on the periodic table. It is a rare earth metal and forms one of th..
$56.50 $64.80
Brand: JC-magnetics
Model: JCN52-BLK25123
Pull Force: 11.59 LBDimensions: 25mm x 12mm x 3mm thickness, (0.984in x 0.472in x 0.118in) 63/64in x 15/32in x 1/8inMaterial Features: Neodymium (chemical symbol Nd) is element 60 on the periodic table. It is a rare earth metal and forms one of the Lanthanides..
$3.25
Brand: JC-magnetics
Model: JCN52-BLK25126
Key SpecificationsPull Force: 23.1 lbsDimensions: 25mm × 12mm × 6mm (63/64" × 15/32" × 15/64")Material: Neodymium (NdFeB) - The world's strongest permanent magnetProduct DescriptionThis high-performance N52 neodymium magnet block combines exceptional magnetic strength with a versatile rectangular sh..
$4.70
-17%
Brand: JC-magnetics
Model: JCN52-BLK25C
Pull Force: 91.03 LBDimensions: 25mm x 25mm x 25mm thickness, (0.984in x 0.984in x 0.984in) 63/64in x 63/64in x 63/64inMaterial Features: Neodymium (chemical symbol Nd) is element 60 on the periodic table. It is a rare earth metal and forms one of the Lanthani..
$14.50 $17.50
Brand: JC-magnetics
Model: JCN52-BLK25252
Pull Force: 10.81 LBDimensions: 25mm x 25mm x 2mm thickness, (0.984in x 0.984in x 0.078in) 63/64in x 63/64in x 5/64inMaterial Features: Neodymium (chemical symbol Nd) is element 60 on the periodic table. It is a rare earth metal and forms one of the Lanthanides series. ..
$3.10
Brand: JC-magnetics
Model: JCN52-BLK25051
Pull Force: 2.02 LBDimensions: 25mm x 5mm x 1mm thickness, (0.984in x 0.197in x 0.039in) 63/64in x 13/64in x 1/32inMaterial Features: Neodymium (chemical symbol Nd) is element 60 on the periodic table. It is a rare earth metal and forms one of the Lanthanides series. Wh..
$0.62
Brand: JC-magnetics
Model: JCN52-BLK25052
Pull Force: 4.40 LBDimensions: 25mm x 5mm x 2mm thickness, (0.984in x 0.197in x 0.078in) 63/64in x 13/64in x 5/64inMaterial Features: Neodymium (chemical symbol Nd) is element 60 on the periodic table. It is a rare earth metal and forms one of the Lanthanides series. Wh..
$1.55
Brand: JC-magnetics
Model: JCN52-BLK25053
Pull Force: 7.29 LBDimensions: 25mm x 5mm x 3mm thickness, (0.984in x 0.197in x 0.118in) 63/64in x 13/64in x 1/8inMaterial Features: Neodymium (chemical symbol Nd) is element 60 on the periodic table. It is a rare earth metal and forms one of the Lanthanides series. Whe..
$1.65
-13%
Brand: JC-magnetics
Model: JCN52-BLK090975-25
Pull Force: 10.10 LBDimensions: 9mm x 9mm x 7.5mm thickness, (0.354in x 0.354in x 0.295in) Material Features: Neodymium (chemical symbol Nd) is element 60 on the periodic table. It is a rare earth metal and forms one of the Lanthanides series. When added to Ir..
$18.50 $21.25