---
product_id: 13431347
title: "Ferrite Ring Magnet, 4In Dia, Big Round Circle Ceramic Magnets with Hole, Strong Large Donut Circular Magnetic Ring Heavy Duty for DIY, Crafts Speaker Creative Hobbies Science"
brand: "aomag"
price: "173 zł"
currency: PLN
in_stock: true
url: https://www.desertcart.pl/products/13431347-ferrite-ring-magnet-4in-dia-big-round-circle-ceramic-magnets
store_origin: PL
region: Poland
---

# 100mm OD Grade 10 strength 20mm thickness Ferrite Ring Magnet, 4In Dia, Big Round Circle Ceramic Magnets with Hole, Strong Large Donut Circular Magnetic Ring Heavy Duty for DIY, Crafts Speaker Creative Hobbies Science

**Brand:** aomag
**Price:** 173 zł
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate Your DIY Game with Unstoppable Magnetism!

## Quick Answers

- **What is this?** Ferrite Ring Magnet, 4In Dia, Big Round Circle Ceramic Magnets with Hole, Strong Large Donut Circular Magnetic Ring Heavy Duty for DIY, Crafts Speaker Creative Hobbies Science by aomag
- **How much does it cost?** 173 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/13431347-ferrite-ring-magnet-4in-dia-big-round-circle-ceramic-magnets)

## Best For

- aomag enthusiasts

## Why This Product

- Trusted aomag brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Corrosion and oxidation resistant for enduring performance.
- • **Clutter-Free Workspace:** Efficiently organize tools and items with ease.
- • **Versatile Applications:** Perfect for DIY projects, classrooms, and industrial use.
- • **Budget-Friendly Solution:** High performance at a fraction of the cost of NdFeB magnets.
- • **Unmatched Magnetic Power:** Experience Grade 10 strength for superior adhesion.

## Overview

The Ferrite Ring Magnet is a robust 4-inch diameter ceramic magnet designed for a variety of applications, featuring a strong Grade 10 magnetic strength, high durability against demagnetization, and corrosion. Ideal for organizing tools and enhancing DIY projects, this economical solution is perfect for both professional and creative uses.

## Description

Ferrite Ring Magnet, 4In Dia, Big Round Circle Ceramic Magnets with Hole, Strong Large Donut Circular Magnetic Ring Heavy Duty for DIY, Crafts Speaker Creative Hobbies Science

## Features

- 【Strong Magnetic Performance】Ferrite Ring Magnets Large Round Magnet with Holes. Size - OD: 100mm(3.95"), ID: 60mm(2.36"), Thickness: 20mm(0.79"). With Grade 10 magnetic strength, these large magnets provide robust magnetic adhesion, ensuring they stay firmly attached to any metal surface without slipping.
- 【Strength & Durability】Large Ring Ferrite circle magnets with Hole has high demagnetization resistance, corrosion resistance and oxidation resistance. High-quality materials determine the quality of magnets. The Round Circle Magnets are highly resistant to demagnetization, corrosion, making them suitable for use in challenging environments without the need for additional protective coatings.
- 【Efficient Storage Solution】 - Use the large ring magnets to organize and secure metal tools and other items, saving space and reducing clutter in your workspace.Round Ceramic magnets made by molding process have more rounded edges than those cut by cutting, and are made of rare earth permanent magnetic materials mixed with other metal materials.
- 【Multiple Uses】These Big round magnets are widely used as classroom magnets, refrigerator magnets, industrial magnets, whiteboard magnets, motors and generators, sensors, speaker magnets, scientific magnets and DIY magnets.With the ability to meet the needs of all your magnetic projects, the magnetic ring will be a reliable tool in your daily life.
- 【ECONOMICAL】Compared with NdFeB magnets, this large ring ferrite magnets have no advantages in magnetic force, but magnets of the same size (compared with NdFeB magnets) sell for only a small part. The round circle magnets with hole will be packed by original AOMAG trademark package. Powered by AOMAG Only!

## Product Details

- **Material:** Ceramic
- **Brand:** AOMAG
- **Product Dimensions:** 3.93"L x 3.93"W x 0.78"Th
- **Color:** Black
- **Shape:** Round

## Images

![Ferrite Ring Magnet, 4In Dia, Big Round Circle Ceramic Magnets with Hole, Strong Large Donut Circular Magnetic Ring Heavy Duty for DIY, Crafts Speaker Creative Hobbies Science - Image 1](https://m.media-amazon.com/images/I/51J6vGD7njL.jpg)

## Questions & Answers

**Q: what is the lifting capacity of this magnet?**
A: I’m my experience between 325 - 370g.

**Q: what is the equivalent pull force?**
A: This magnet can pick up about 100 paper clips

**Q: What is the diameter of the inner hole?**
A: 2-1/4" ID

**Q: how many gauss?**
A: wasn't posted on the box

## Frequently Bought Together

- Ferrite Ring Magnet, 4In Dia, Big Round Circle Ceramic Magnets with Hole, Strong Large Donut Circular Magnetic Ring Heavy Duty for DIY, Crafts Speaker Creative Hobbies Science
- Legrand Pass & Seymour S752WCC10 660W 250V Medium Base A26 Lampholder, Cleat Sockets, Front Wire, White (1 Count)
- Hillman 25' 18 Gauge Bare Copper Wire

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**Shop now:** [https://www.desertcart.pl/products/13431347-ferrite-ring-magnet-4in-dia-big-round-circle-ceramic-magnets](https://www.desertcart.pl/products/13431347-ferrite-ring-magnet-4in-dia-big-round-circle-ceramic-magnets)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-01-25*