Neodymium Block Magnet - 20mm x 20mm x 12mm

Product code: 22015

$20.95for 1 to 9 items
$15.95buy 10 to 99 itemsand save 23%
$12.25buy 100+ itemsand save 41%

Prices are GST Incl.

Volume pricing available on request

Neodymium Block Magnet - 20mm x 20mm x 12mm

Rated 5.0 out of 5
3 Reviews
Product Code 22015
Pull Force* 14.8 kg
Weight 36 gm
Style Neodymium square Block magnet
Gauss 4606
Grade N38
Coating Nickel (NiCuNi)
Direction of Magnetisation Axially magnetised
Dimensions Width:20mm, Height:12mm, Length:20mm
*Measured against up to 10mm mild steel.
Neodymium Block Magnet - 20mm x 20mm x 12mm

Magnetic Product Description:

This magnet has a length and width of 20mm and a height of 12mm. It has a magnetic flux of 4606 Gauss and a pull force of 14.8kg against 5mm mild steel. It uses AMF magnet part number 22015.


Uses for our neodymium block magnets:

 

Quality Neodymium magnetic products are regularly used by the education sector as well as specialist design firms. This powerful block magnet with square pole surfaces is an ideal multi-purpose magnet that can be adapted to an almost endless variety of applications.

Neodymium Block Magnet - 20mm x 20mm x 12mm (22015)

Grade
N38 N/A
Max Operating Temperature °C
<=80 N/A
Remanence Br(T)
1.23-1.3 N/A
Remanence Br(kGs)
12.3-13 N/A
Coercivity bHc(kA/m)
>=859 N/A
Coercivity bHc(Oe)
>=10.8 N/A
Intrinsic Coercivity iHc(kA/m)
>=955 N/A
Intrinsic Coercivity iHc(Oe)
>=12 N/A
Max Energy Product(BH)max(KJ/m)
286-318 N/A
Max Energy Product(BH)max(MGOe)
36-40 N/A
Grade N38 N/A
Max Operating Temperature °C <=80 N/A
Remanence Br(T) 1.23-1.3 N/A
Remanence Br(kGs) 12.3-13 N/A
Coercivity bHc(kA/m) >=859 N/A
Coercivity bHc(Oe) >=10.8 N/A
Intrinsic Coercivity iHc(kA/m) >=955 N/A
Intrinsic Coercivity iHc(Oe) >=12 N/A
Max Energy Product(BH)max(KJ/m) 286-318 N/A
Max Energy Product(BH)max(MGOe) 36-40 N/A
average rating 5.0 out of 5
Based on 3 reviews
  • 5 Stars
    3 Reviews
  • 4 Stars
    0 Reviews
  • 3 Stars
    0 Reviews
  • 2 Stars
    0 Reviews
  • 1 Star
    0 Reviews
100% of reviewers would recommend this product to a friend
3 Reviews
Reviewed by Andrew
I recommend this product
Rated 5 out of 5
Review posted

Very Powerful Magnets

I purchased these magnets for use in an internal training course for work to show how metals behave in the presence of a magnetic field. These magnets are small enough to drop through a roll of aluminium foil to demonstrate the bahaviour.

Loading...
Was this helpful?
Reviewed by Daynan e.
I recommend this product
Rated 5 out of 5
Review posted

Fixed it

I used the magnet to fix my shonky oven door

Loading...
Was this helpful?
Reviewed by William R.
I recommend this product
Rated 5 out of 5
Review posted

900W+ resistance

I ride my track bicycle on rollers for training purposes. While rollers give a very realistic riding experience, and are good for pedaling technique, they don't provide enough resistance for building muscle power. One ends up maxing out leg speed (this happens for me at 160-170 rpm) before running out of strength.

Mounting a magnet very close (2mm or less) to the aluminium roller surface generates eddy currents in the roller when it spins. The eddy currents generate an electric field that interacts with the block magnet's magnetic field to generate a force that acts to slow the rollers down, converting the rider's effort into heat due to electrical resistance to the eddy current. The force provided increases linearly with the roller speed, so the faster one rides, the more resistance one feels.

The three Neodymium block magnets I purchased from AMF Magnetics currently provide my rollers with over 900W of resistance @ 150rpm which is all my current fitness and strength can handle. With consistent training, I hope to need another magnet by the end of the year.

Loading...
Was this helpful?
Neodymium Block Magnet - 20mm x 20mm x 12mm

Magnetic Product Description:

This magnet has a length and width of 20mm and a height of 12mm. It has a magnetic flux of 4606 Gauss and a pull force of 14.8kg against 5mm mild steel. It uses AMF magnet part number 22015.


Uses for our neodymium block magnets:

 

Quality Neodymium magnetic products are regularly used by the education sector as well as specialist design firms. This powerful block magnet with square pole surfaces is an ideal multi-purpose magnet that can be adapted to an almost endless variety of applications.

Neodymium Block Magnet - 20mm x 20mm x 12mm (22015)

Grade
N38 N/A
Max Operating Temperature °C
<=80 N/A
Remanence Br(T)
1.23-1.3 N/A
Remanence Br(kGs)
12.3-13 N/A
Coercivity bHc(kA/m)
>=859 N/A
Coercivity bHc(Oe)
>=10.8 N/A
Intrinsic Coercivity iHc(kA/m)
>=955 N/A
Intrinsic Coercivity iHc(Oe)
>=12 N/A
Max Energy Product(BH)max(KJ/m)
286-318 N/A
Max Energy Product(BH)max(MGOe)
36-40 N/A
Grade N38 N/A
Max Operating Temperature °C <=80 N/A
Remanence Br(T) 1.23-1.3 N/A
Remanence Br(kGs) 12.3-13 N/A
Coercivity bHc(kA/m) >=859 N/A
Coercivity bHc(Oe) >=10.8 N/A
Intrinsic Coercivity iHc(kA/m) >=955 N/A
Intrinsic Coercivity iHc(Oe) >=12 N/A
Max Energy Product(BH)max(KJ/m) 286-318 N/A
Max Energy Product(BH)max(MGOe) 36-40 N/A
average rating 5.0 out of 5
Based on 3 reviews
  • 5 Stars
    3 Reviews
  • 4 Stars
    0 Reviews
  • 3 Stars
    0 Reviews
  • 2 Stars
    0 Reviews
  • 1 Star
    0 Reviews
100% of reviewers would recommend this product to a friend
3 Reviews
Reviewed by Andrew
I recommend this product
Rated 5 out of 5
Review posted

Very Powerful Magnets

I purchased these magnets for use in an internal training course for work to show how metals behave in the presence of a magnetic field. These magnets are small enough to drop through a roll of aluminium foil to demonstrate the bahaviour.

Loading...
Was this helpful?
Reviewed by Daynan e.
I recommend this product
Rated 5 out of 5
Review posted

Fixed it

I used the magnet to fix my shonky oven door

Loading...
Was this helpful?
Reviewed by William R.
I recommend this product
Rated 5 out of 5
Review posted

900W+ resistance

I ride my track bicycle on rollers for training purposes. While rollers give a very realistic riding experience, and are good for pedaling technique, they don't provide enough resistance for building muscle power. One ends up maxing out leg speed (this happens for me at 160-170 rpm) before running out of strength.

Mounting a magnet very close (2mm or less) to the aluminium roller surface generates eddy currents in the roller when it spins. The eddy currents generate an electric field that interacts with the block magnet's magnetic field to generate a force that acts to slow the rollers down, converting the rider's effort into heat due to electrical resistance to the eddy current. The force provided increases linearly with the roller speed, so the faster one rides, the more resistance one feels.

The three Neodymium block magnets I purchased from AMF Magnetics currently provide my rollers with over 900W of resistance @ 150rpm which is all my current fitness and strength can handle. With consistent training, I hope to need another magnet by the end of the year.

Loading...
Was this helpful?