---
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: "216 Lei"
currency: RON
in_stock: true
reviews_count: 13
category: "Aomag"
url: https://www.desertcart.ro/products/13431347-ferrite-ring-magnet-4in-dia-big-round-circle-ceramic-magnets
store_origin: RO
region: Romania
---

# 4-inch diameter with 2.36-inch hole 120 lbs pull force High corrosion & demagnetization resistance 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:** 216 Lei
**Availability:** ✅ In Stock

## Summary

> 🧲 Elevate your projects with magnetic might that sticks—and style that clicks!

## 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?** 216 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/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

- • **Versatility Meets Value:** Ideal for everything from speakers to science experiments, all at a fraction of the cost of rare-earth magnets.
- • **Precision Crafted Design:** Smooth, molded ceramic edges with a perfect 4-inch diameter and 2.36-inch center hole for versatile DIY mastery.
- • **Unmatched Magnetic Power:** Grade 10 strength delivers a massive 120 lbs pull force—hold tight or risk missing out!
- • **Built to Brave the Elements:** Engineered for durability with corrosion and demagnetization resistance—your magnet for life’s toughest projects.
- • **Clutter-Free Workspace Hero:** Transform chaos into order by securing tools and metal items effortlessly—because organized pros get ahead.

## Overview

The AOMAG Ferrite Ring Magnet is a heavy-duty, 4-inch diameter ceramic magnet featuring a 2.36-inch center hole and a robust 120 lbs pull force. Crafted with high-grade materials, it offers exceptional resistance to corrosion and demagnetization, making it perfect for industrial, DIY, and creative applications. Its smooth molded edges and economical price point make it a must-have for professionals seeking reliable magnetic performance without compromise.

## 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 | #36,218 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #22 in Industrial Ceramic Magnets |
| Brand | AOMAG |
| Color | Black |
| Date First Available | March 25, 2012 |
| Department | unisex-adult |
| Is Discontinued By Manufacturer | No |
| Item Thickness | 20 Millimeters |
| Item Weight | 1.12 pounds |
| Item model number | 7-303578JFA |
| Manufacturer | AOMAG |
| Material | Ceramic |
| Number of Pieces | 1 |
| Product Dimensions | 3.93"L x 3.93"W x 0.78"Th |
| Pull Force | 120 Pounds |
| Shape | Round |

## Product Details

- **Brand:** AOMAG
- **Color:** Black
- **Material:** Ceramic
- **Product Dimensions:** 3.93"L x 3.93"W x 0.78"Th
- **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)
![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 2](https://m.media-amazon.com/images/I/51GUo-ydjNL.jpg)
![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 3](https://m.media-amazon.com/images/I/61yYrQR1WzL.jpg)
![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 4](https://m.media-amazon.com/images/I/41Dg7zR3qdL.jpg)
![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 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 Romania*
*Store origin: RO*
*Last updated: 2026-02-28*