JW Winco

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GN 50.5 Retaining Magnets Neodymium, iron, boron (NdFeB), Housing Steel, Disk-Shaped, with Internal Thread


GN 50.5 Retaining Magnets with Internal Thread, Steel

Product description


Retaining magnets GN 50.5 are combined with a steel housing and a plastic ring and the plastic cover into a system that shields and strengthens the magnet for optimal transmission of the magnetic flux onto the magnetic surface.

For diameter d1 ≥ 50 the adhesive surface is lagged with an all over plastic cover.

To ensure that the magnetic properties are not impaired negatively, the fixing screws should be made of non-magnetic material, like for example stainless steel, brass or plastic.


Material of the magnet
Neodymium, iron, boron
Operating Temperature up to 80 °C

Steel, zinc plated

Plastic cover
Polyamide (PA)



Holding Disks GN 70
Adhesive Disks GN 70.1
Rubber Caps GN 70.2

Technical drawing

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GN 50.5 Retaining Magnets with Internal Thread, Steel sketch

Article options / Table

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Thread depth
Nominal magnetic forces in N
10 ±0,1M 3-4,5 ±0,14,519
13 ±0,1M 3-4,5 ±0,14,540
16 ±0,1M 3-4,5 ±0,14,575
20 ±0,1M 4-6 ±0,16105
25 ±0,1M 44,57 ±0,25160
32 ±0,1M 55,57 ±0,25330
40 ±0,1M 510,58 ±0,26500
47 +0,2/-0,1M 8-9,2 +0,2/-0,39,2740
50 ±0,1M 81110 ±0,25,5800
63 ±0,1M 1011,514 ±0,28,51100
75 -0,3/-0,5M 1011,715 ±0,26,51750

Build & Price

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Material of the magnet

Diameter d1

Selected Part (How to order)

Total (net)
plus VAT 0,48 €
gross 2,98 €
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Weight: 0,002 kg
If this article is new in our product range, it may happen that details concerning weight are as yet not listed.
If you do need weight details, please contact our Sales Department!
Phone +49 7723 6507 - 0
RoHS: Yes
This article is RoHS-compliant in application of Annex III., which means it complies with EU Directive 2011/65/EU, including extension (2015/863/EU), for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances).
Please note our order discounts.
With a total value (net) per order:
from 175,00 € -> 10 % discount
from 275,00 € -> 20 % discount
from 375,00 € -> 30 % discount

Surcharge for small volume purchases:
-> 15,00 Euro
for value of goods less than 25,00 €
-> 10,00 Euro
for value of goods from 25,00 to 50,00 €
All prices in accordance with our price list No. 55, valid from 1 September 2022, plus VAT only valid for Germany.

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Our service team is available from Monday to Friday between 7:00 AM and 5:30 PM: +49 7723 6507 - 0

To the customised elements | To the contact persons

GN 50.5-ND-10GN 50.5-ND-13GN 50.5-ND-16GN 50.5-ND-20GN 50.5-ND-25GN 50.5-ND-32GN 50.5-ND-40GN 50.5-ND-47GN 50.5-ND-50GN 50.5-ND-63GN 50.5-ND-75

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