---
product_id: 52833369
title: "FIRST4MAGNETS Small Red Alnico Horseshoe Magnet for High-Temperature, Engineering, and Manufacturing Applications - 30mm x 20mm x 20mm 4.5mm Hole - 4.5kg Pull"
brand: "first4magnets"
price: "5022 kr"
currency: ISK
in_stock: true
reviews_count: 13
category: "First4 Magnets"
url: https://www.desertcart.is/products/52833369-first4magnets-small-red-alnico-horseshoe-magnet-for-high-temperature-engineering
store_origin: IS
region: Iceland
---

# 500°C high-temp resistant 4.5kg pull force Epoxy protective coating FIRST4MAGNETS Small Red Alnico Horseshoe Magnet for High-Temperature, Engineering, and Manufacturing Applications - 30mm x 20mm x 20mm 4.5mm Hole - 4.5kg Pull

**Brand:** first4magnets
**Price:** 5022 kr
**Availability:** ✅ In Stock

## Summary

> 🧲 Harness the power of precision magnetism — engineered to perform, built to last!

## Quick Answers

- **What is this?** FIRST4MAGNETS Small Red Alnico Horseshoe Magnet for High-Temperature, Engineering, and Manufacturing Applications - 30mm x 20mm x 20mm 4.5mm Hole - 4.5kg Pull by first4magnets
- **How much does it cost?** 5022 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/52833369-first4magnets-small-red-alnico-horseshoe-magnet-for-high-temperature-engineering)

## Best For

- first4magnets enthusiasts

## Why This Product

- Trusted first4magnets brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Engineering Fit:** Compact 30x20x20mm size with 4.5mm mounting hole for versatile use
- • **Trusted Industry Standard:** Preferred by engineers & manufacturers since the 1930s
- • **Heat-Resistant Performance:** Operates flawlessly up to 500°C for extreme environments
- • **Unmatched Magnetic Strength:** 4.5kg pull power for heavy-duty hold
- • **Corrosion-Defying Durability:** Epoxy coating ensures longevity even underwater

## Overview

The FIRST4MAGNETS Small Red Alnico Horseshoe Magnet delivers a robust 4.5kg pull force within a compact 30x20x20mm frame. Engineered for high-temperature applications up to 500°C and protected by a durable epoxy coating, it excels in demanding engineering and manufacturing environments. Its corrosion resistance and precision mounting hole make it a versatile, reliable tool trusted by professionals since the 1930s.

## Description

From the manufacturer Alnico magnets have been in production since the early 1930’s and are the most recognised form of magnet. They are strong, typically less brittle than most rare-earth magnets and can be magnetised to produce a strong magnetic field. While Alnico is not as strong as rare earth, they are still commonly used in the manufacturing of sensors, guitar pickups, loudspeakers and many other everyday household objects. Widely used in manufacturing and engineering industries for their strength and depth of magnetic field, horseshoe magnets are often used to solve many problems that would otherwise require a very costly solution.

Review: Magnet. Sticks like excrement. - Very powerful magnet. Comes in handy little case.
Review: A little small if you want this for nail art... - I bought this to achieve the velvet magnetic look with my magnetic lacquer (not gel) polishes. It has a much lower pull than the medium-sized magnet also produced by this company. However a couple of my fingers were too wide to slide easily between the poles of the magnet, and I couldn't paint my nails inside the magnetic field - so I bought the medium-sized magnet as well. However, as a magnet, this works perfectly well, so I didn't take away any stars.

## Features

- IDEAL FOR ENGINEERING & MANUFACTURING. This magnet is popular in engineering and manufacturing industries due to its strength, operating temperature, and corrosion resistance properties.
- RESISTANT TO CORROSION. Resistant to corrosion with a 500-degree Celsius operating temperature makes this magnet ideal for high-temperature and underwater/sub-sea applications.
- PROTECTIVE COATING. Protective epoxy coating.
- SPECIFICATIONS. 30mm x 20mm x 20mm. 20mm x 7.3mm individual pole faces. 4.5mm hole. 4.5kg pull.
- This magnet is popular in engineering and manufacturing industries due to its strength, operating temperature and corrosion resistance properties.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004NU3GCW |
| Best Sellers Rank | 164,928 in DIY & Tools ( See Top 100 in DIY & Tools ) 159 in Magnetic Hooks 14,737 in Nails, Screws & Fasteners 75,254 in Home Accessories |
| Brand | FIRST4MAGNETS |
| Colour | Red |
| Country Of Origin | China |
| Customer Reviews | 4.4 out of 5 stars 118 Reviews |
| Global Trade Identification Number | 05060185926026 |
| Included Components | 1 Magnet |
| Item Dimensions L x W x Thickness | 30L x 20W x 20Th millimetres |
| Item Shape | horseshoe |
| Item Thickness | 20 Millimetres |
| Item Type Name | Small Red Alnico Horseshoe Magnet |
| Item thickness | 20 Millimetres |
| Manufacturer | Magnet Expert® |
| Manufacturer Part Number | F4M811-1 |
| Material | AlNiCo |
| Material Type | AlNiCo |
| Model Number | F4M811-1 |
| Number of Pieces | 1 |
| Product dimensions | 30L x 20W x 20Th millimetres |
| Pull Force | 4.5 Kilograms |
| Shape | horseshoe |
| Unit Count | 1.0 count |

## Product Details

- **Brand:** FIRST4MAGNETS
- **Colour:** Red
- **Material:** AlNiCo
- **Product dimensions:** 30L x 20W x 20Th millimetres
- **Shape:** horseshoe

## Images

![FIRST4MAGNETS Small Red Alnico Horseshoe Magnet for High-Temperature, Engineering, and Manufacturing Applications - 30mm x 20mm x 20mm 4.5mm Hole - 4.5kg Pull - Image 1](https://m.media-amazon.com/images/I/51bn2y8YzJL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Magnet. Sticks like excrement.
*by B***3 on 9 April 2026*

Very powerful magnet. Comes in handy little case.

### ⭐⭐⭐⭐⭐ A little small if you want this for nail art...
*by M***N on 6 March 2025*

I bought this to achieve the velvet magnetic look with my magnetic lacquer (not gel) polishes. It has a much lower pull than the medium-sized magnet also produced by this company. However a couple of my fingers were too wide to slide easily between the poles of the magnet, and I couldn't paint my nails inside the magnetic field - so I bought the medium-sized magnet as well. However, as a magnet, this works perfectly well, so I didn't take away any stars.

### ⭐⭐⭐⭐ Good
*by G***U on 5 August 2022*

My husband need ot for his work, he said is very good no complaints

## Frequently Bought Together

- FIRST4MAGNETS Small Red Alnico Horseshoe Magnet for High-Temperature, Engineering, and Manufacturing Applications - 30mm x 20mm x 20mm 4.5mm Hole - 4.5kg Pull
- Medium Red Alnico Horseshoe Magnet for High-Temperature, Engineering, and Manufacturing Applications - 40mm x 25mm x 25mm 4.5mm hole - 9kg Pull

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-07-14*