---
product_id: 13431347
title: "errite Ring Magnet, 4In Dia, Ceramic for Science Experiment"
brand: "aomag"
price: "R626"
currency: ZAR
in_stock: true
reviews_count: 8
category: "Aomag"
url: https://www.desertcart.co.za/products/13431347-errite-ring-magnet-4in-dia-ceramic-for-science-experiment
store_origin: ZA
region: South Africa
---

# 120 lbs pull force 100mm outer diameter High corrosion & demagnetization resistance errite Ring Magnet, 4In Dia, Ceramic for Science Experiment

**Brand:** aomag
**Price:** R626
**Availability:** ✅ In Stock

## Summary

> 🧲 Power Your Projects with Magnetic Precision!

## Quick Answers

- **What is this?** errite Ring Magnet, 4In Dia, Ceramic for Science Experiment by aomag
- **How much does it cost?** R626 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/13431347-errite-ring-magnet-4in-dia-ceramic-for-science-experiment)

## 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

- • **Unmatched Magnetic Power:** Grade 10 strength delivers a whopping 120 lbs pull force—hold tight or risk missing out!
- • **Built to Brave the Elements:** Corrosion and demagnetization resistant ceramic ensures long-lasting performance in any environment.
- • **Clutter-Free Workspace Hero:** Transform your desk or workshop with efficient magnetic storage that keeps tools and metals organized.
- • **Multi-Purpose Magnet Mastery:** From speakers to science projects, this heavy-duty donut magnet is your go-to for creative and professional needs.
- • **Precision Engineered Dimensions:** Perfectly sized at 4 inches diameter with a 60mm inner hole for versatile DIY and industrial use.

## Overview

The AOMAG Ferrite Ring Magnet is a robust 4-inch diameter ceramic magnet featuring a 60mm inner hole and 20mm thickness. With a strong 120 lbs pull force and Grade 10 magnetic strength, it offers exceptional adhesion and durability. Resistant to corrosion and demagnetization, this heavy-duty donut magnet is ideal for DIY, crafts, industrial applications, and scientific projects, providing an economical yet powerful magnetic solution.

## Description

desertcart.com: 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 : Industrial & Scientific

Review: Perfect! - Very strong magnet and is exactly what I needed. Very well packaged and arrived in perfect condition. Thanks!
Review: Got what I wanted. Thanks. - Got what I wanted. Thanks.

## 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!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B007OXE3LI |
| Best Sellers Rank | #42,796 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #25 in Industrial Ceramic Magnets |
| Brand | AOMAG |
| Brand Name | AOMAG |
| Color | Black |
| Customer Reviews | 4.5 out of 5 stars 751 Reviews |
| Item Dimensions L x W x Thickness | 3.93"L x 3.93"W x 0.78"Th |
| Item Thickness | 20 Millimeters |
| Item Weight | 1.12 Pounds |
| Manufacturer | AOMAG |
| Material | Ceramic |
| Material Type | Ceramic |
| Number of Pieces | 1 |
| Product Dimensions | 3.93"L x 3.93"W x 0.78"Th |
| Pull Force | 120 Pounds |
| Shape | Round |
| Unit Count | 1 Count |

## Product Details

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

## Images

![errite Ring Magnet, 4In Dia, Ceramic for Science Experiment - Image 1](https://m.media-amazon.com/images/I/51J6vGD7njL.jpg)
![errite Ring Magnet, 4In Dia, Ceramic for Science Experiment - Image 2](https://m.media-amazon.com/images/I/51GUo-ydjNL.jpg)
![errite Ring Magnet, 4In Dia, Ceramic for Science Experiment - Image 3](https://m.media-amazon.com/images/I/61yYrQR1WzL.jpg)
![errite Ring Magnet, 4In Dia, Ceramic for Science Experiment - Image 4](https://m.media-amazon.com/images/I/41Dg7zR3qdL.jpg)
![errite Ring Magnet, 4In Dia, Ceramic for Science Experiment - Image 5](https://m.media-amazon.com/images/I/61VSDOUuP5L.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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect!
*by A***R on June 12, 2023*

Very strong magnet and is exactly what I needed. Very well packaged and arrived in perfect condition. Thanks!

### ⭐⭐⭐⭐⭐ Got what I wanted. Thanks.
*by F***S on August 23, 2025*

Got what I wanted. Thanks.

### ⭐⭐⭐⭐ 🧲
*by S***I on January 15, 2026*

Not as strong as thought to be yet holds small metal screws & such

## 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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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-25*