Neodymium Rectangular

NdFeB Rectangular / Block Magnets

NdFeB rectangular block magnets are supplied in stock sizes varying from 3mm cubes up to 100mm x 50mm x 10mm and 50mm x 50mm x 25mm blocks. The stock sizes are supplied with +/-0.1mm tolerances. The pull forces vary from 0.7kg up to 88.5kg. The larger magnets can be very difficult to handle because of the very high pull forces that exist. For note the last dimension (with “mmA” as the ending) defines the direction of magnetisation. So, for a 5mm x 10mm x 2mmA magnet, the pole faces are 5mm x 10mm in size with 2mm being the distance between the pole faces of that magnet. The “A” in “mmA” means that direction of magnetisation is “Aligned” with the axis that the “A” has been put against.

There are multiple uses for such magnets. Because the larger magnets have very high pull forces, they are favoured for clamping applications, magnetic sweeper applications, and industrial applications, amongst others.

We can produce the NdFeB rectangular magnets in different sizes, different grades (strengths and temperature ratings), different coatings/finishes and with different directions of magnetisation as part of our custom magnet (made-to-order) service. For example, we can produce magnets as big as 150mm x 150mm x 25mmA and 200mm x 130mm x 25mmA.

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Stock NdFeB Rectangular / Block Magnets

Our current stock range is below:-

Size	Magnetisation	Grade	Max Operating Temperature	Coating type	Max Pull (kg)	Typical Gauss at 0mm	Typical Gauss at 5mm	Typical Gauss at 10mm
3mm x 3mm x 3mmA	3mm between N and S	N42	+80 deg C	NiCuNi plated	0.7kg	5666.8	201.5	36.7
3mm x 3mm x 8mmA	8mm between N and S	N42	+80 deg C	NiCuNi plated	1.5kg	6359.4	287.7	62.5
5mm x 5mm x 2mmA	2mm between N and S	N42	+80 deg C	NiCuNi plated	0.7kg	3786.5	364.1	71.4
5mm x 10mm x 2mmA	2mm between N and S	N42	+80 deg C	NiCuNi plated	1kg	3143.8	517.2	124.8
10mm x 3.5mm x 2.25mmA	2.25mm between N and S	N45	+80 deg C	NiCuNi plated	1kg	4196.5	439.0	101.8
10mm x 10mm x 5mmA	5mm between N and S	N42	+80 deg C	NiCuNi plated	3.6kg	4333.3	1333.4	418.7
10mm x 10mm x 5mmA c/w 4mm dia Csk Hole - NORTH	5mm between N and S	N42	+80 deg C	NiCuNi plated	2.4kg	N/A	N/A	N/A
12.5mm x 5mm x 1mmA	1mm between N and S	N45	+80 deg C	NiCuNi plated	0.6kg	1765.1	324.8	82.5
15mm x 5mm x 1mmA	1mm between N and S	N45	+80 deg C	NiCuNi plated	0.6kg	1726.9	327.6	89.7
20mm x 6mm x 1.5mmA	1.5mm between N and S	N45	+80 deg C	NiCuNi plated	1.2kg	2085.5	512.1	164.2
20mm x 10mm x 5mmA	5mm between N and S	N42	+80 deg C	NiCuNi plated	5.1kg	3666.6	1502.0	601.8
22mm x 7mm x 2mmA	2mm between N and S	N42	+80 deg C	NiCuNi plated	1.8kg	2262.3	672.0	234.2
22mm x 11mm x 2mmA	2mm between N and S	N42	+80 deg C	NiCuNi plated	2.2kg	1616.8	789.5	327.8
25mm x 5mm x 5mmA	5mm between N and S	N42	+80 deg C	NiCuNi plated	4.1kg	4728.1	983.4	352.1
25mm x 10mm x 3mmA	3mm between N and S	N42	+80 deg C	NiCuNi plated	3.4kg	2420.0	1048.9	435.7
25mm x 22mm x 0.4mm	0.4mm between N and S	N42	+80 deg C	NiCuNi plated	0.8kg	200.3	159.3	96.6
40mm x 20mm x 10mmA	10mm between N and S	N42	+80 deg C	NiCuNi plated	19.9kg	3666.6	2444.8	1502.0
42mm x 8mm x 10mmA	10mm between N and S	N45	+80 deg C	NiCuNi plated	13kg	5280.6	1899.1	857.0
50mm x 12mm x 25.4mmA	25.4mm between N and S	N38	+80 deg C	NiCuNi plated	42.8kg	5538.3	2868.8	1578.3
50mm x 25mm x 10mmA	10mm between N and S	N42	+80 deg C	NiCuNi plated	24.8kg	3143.8	2330.7	1590.5
50mm x 50mm x 5mmA	5mm between N and S	N42	+80 deg C	NiCuNi plated	18.1kg	1151.4	1047.8	882.4
50mm x 50mm x 25mmA	25mm between N and S	N42	+80 deg C	NiCuNi plated	88.5kg	4333.3	3601.2	2874.8
100mm x 20mm x 4mmA	4mm between N and S	N42	+80 deg C	NiCuNi plated	12.9kg	1607.2	1145.2	712.3
100mm x 50mm x 10mmA	10mm between N and S	N50	+60 deg C	NiCuNi plated	49.7kg	1920.7	1739.6	1501.2