Retaining magnets GN 54.1, in combination with the brass housing, the iron poles, and the plastic insulation, form a system that shields and strengthens the magnet for optimal transmission of the magnetic flux onto the magnetic surface.
This special assembly is also known as a "sandwich magnet".
The retaining magnets can be mounted easily and securely by press-fitting, shrinking or with adhesive.
k1 is the max. dimension by which the retaining magnet can be shortened without losing its properties.
*Mounting this retaining magnet directly in steel components will create a magnetic short circuit, which reduces the magnetic force by up to 15 %. To avoid this, the distance k2 between the brass housing and the steel component or installation hole should be maintained. The distance is to be maintained also if the retaining magnet is shortened.
Magnet materials
Housing
Brass
Identification for ND
Magnetic area colored blue
RoHS
Magnet Holding Disks GN 70
Self-Adhesive Disks GN 70.1
Rubber Caps GN 70.2
Housing in stainless steel
Poles in stainless steel
Higher magnetic forces
Temperature resistance up to 536 °F (280 °C)
| d -0.0004 | h | k1* | k2 ** | Nominal magnetic forces SC | ND |
|---|---|---|---|---|---|
| 0.24 | 0.787 ±0.008 | 0.39 | 0.06 | 1.80 lbf (8 N) | 2.25 lbf (10 N) |
| 0.31 | 0.787 ±0.008 | 0.39 | 0.06 | 4.95 lbf (22 N) | 5.62 lbf (25 N) |
| 0.39 | 0.787 ±0.008 | 0.31 | 0.08 | 8.99 lbf (40 N) | 10.12 lbf (45 N) |
| 0.51 | 0.787 ±0.008 | 0.24 | 0.10 | 13.49 lbf (60 N) | 15.74 lbf (70 N) |
| 0.63 | 0.787 ±0.008 | 0.08 | 0.12 | 28.10 lbf (125 N) | 33.72 lbf (150 N) |
| 0.79 | 0.984 ±0.008 | 0.20 | 0.16 | 56.20 lbf (250 N) | 62.95 lbf (280 N) |
| 0.98 | 1.378 ±0.012 | 0.28 | 0.20 | 89.92 lbf (400 N) | 101 lbf (450 N) |
| 1.26 | 1.575 ±0.012 | 0.18 | 0.24 | 135 lbf (600 N) | 157 lbf (700 N) |
| Min | Max | Price |
|---|---|---|
| 1 | 24 | $5.55 |
| 25 | 49 | $5.09 |
| 50 | 99 | $4.63 |
| ≥ 100 | $4.16 |
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Attention Valued Customer,
Beginning June 15, 2024, we will implement a price adjustment. Some items will have a price decrease, while others will increase. The adjustment helps ensure our commitment to providing our customers with the best products and services.
We will honor current published prices through June 14, 2024.
Customers with pricing agreements will not be effected until annual pricing is reviewed.
Thank you
JW Winco
