Product Details
When the design brief says maximum force in minimum space, the answer is NdFeB. PML NdFeB Pot Magnets enclose rare-earth neodymium — the strongest commercially available magnet material — in a mild steel shell that works as a flux concentrator, so even a small magnet generates remarkable holding force for gripping, clamping, lifting and mounting fixtures.
The outer pot is chemically plated against corrosion, and the range spans enough sizes that force can be matched precisely to the requirement.
Key Features
- Engineered Construction
MS shell, NdFeB magnet and aluminium/stainless ring spacer — each part doing one job well.
- Smooth Working Face
The magnetic surface is finished smooth, because a smooth face sticks harder to the workpiece.
- Simple Fixing
Standard external threading on the non-magnetic side.
- Heat and Chemical Tolerant
No epoxy binding — suitable for operating temperatures of 80–120°C and chemical stripping applications.
Every Design Pull-Tested
Why Designers Choose the Pot Format
- Compact size with high holding force
- Permanent magnetism — retained indefinitely unless exposed to a strong external field or temperatures beyond rating
- The field is confined to the pot, so nearby objects are unaffected by stray magnetism
- A wide variety of sizes and options
Dimensions & Specifications (N-52 High Grade)
| N-52 High Grdae NdFeB POT MAGNETS - OPERATING TEMPERATURE- 80°C | ||||||||
|---|---|---|---|---|---|---|---|---|
| Sr.no. | Model No. | A | B | C | D | Magnet Size | Holding Force | |
| 1 | 150 | DIA 29 | 13 HT | M4 | 25 HT | DIA. 23 x 10 THK | 40 KG | |
| 2 | 151 | DIA 29 | 9 HT | M4 | 21 HT | DIA. 23 x 6 THK | 30 KG | |
| 3 | 152 | DIA 26 | 9 HT | M4 | 21 HT | DIA. 20 x 6 THK | 20 KG | |
Reading the Ratings Honestly
- Holding forces are determined at room temperature on a polished steel plate (Q235B); in general the value is exceeded.
- Real-world performance depends on installation situation, temperature, counter-anchor and more.
- Treat the indicated values as orientation — and get advice from our experts for your specific application.
Frequently Asked Questions
How can such a small magnet hold so much?
Two reasons: NdFeB is the strongest magnet material made, and the steel pot concentrates its flux onto the single working face instead of letting it spread in all directions.
Will it magnetise things around it?
No — the pot confines the field to the working face, so nearby tools and instruments are unaffected.
What temperature can it handle?
Standard NdFeB pot magnets operate at 80–120°C. Beyond that, choose our ferrite (250°C) or Alnico (higher still) pot magnets — we will point you to the right material honestly.
Why Buy From PML
- 65+ years of magnetic expertise — Permanent Magnets Ltd has designed and manufactured magnetic products for 65+ years, and our consumer range is built to the same engineering standards we supply to global industrial leaders.
- Made and tested in-house — magnets, assemblies and finished products are manufactured and quality-checked at our own facilities, so every unit performs to its stated specification.
- Honest specifications — the ratings you read on this page are the ratings you get. If your application needs a different size or strength, our engineers will tell you exactly what works — and what won't.
- Support from real engineers — from product selection to after-sales, your questions are answered by the team that builds the product.
Need help choosing, or a custom specification? Enquire now and our engineering team will guide you to the right solution.