Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.
Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vietnam.
🧲 Power Your Projects with Precision & Strength!
This 8-pack of N42H grade NdFeB arc segment magnets features diametrical magnetization and a triple-layer Ni+Cu+Ni coating for exceptional strength, corrosion resistance, and heat tolerance up to 120°C. Designed for assembling into a 36mm diameter ring, these magnets are ideal for high-performance motors, generators, and wind turbine rotors, trusted by professionals for precision and durability.
| ASIN | B07N831KGG |
| Best Sellers Rank | #127,103 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #506 in Rare Earth Magnets |
| Brand | Magerial |
| Brand Name | Magerial |
| Color | Steel Color |
| Customer Reviews | 4.4 out of 5 stars 174 Reviews |
| Included Components | NeodymiumIronBoron Alloy |
| Item Dimensions L x W x Thickness | 1.1"W |
| Item Thickness | 20 Millimeters |
| Item Weight | 0.01 Ounces |
| Manufacturer | HMME |
| Material | Copper |
| Material Type | Copper |
| Model Number | ArcMagnets |
| Number of Pieces | 8 |
| Part Number | ArcMagnets |
| Product Dimensions | 1.1"W |
| Shape | Round |
| UPC | 754525931225 |
| Unit Count | 8.0 Count |
J**J
strong
I got these to use on car oil filters, their curvature fit the round filter body perfectly. Yes it really does work and traps the very fine metal particles that pass through the filter media. I highly suggest using these + a magnetic tipped oil drain plug on any engine with a timing chain, oil operated vvt cam gears, solenoids in the oil system, or push rods. Over the last year I have cut open several filters at 4k mileage oil changes and found very fine metal dust captured, the particle size so fine/small you can not feel it. A large % would easily pass through even the best quality filters media.
D**Z
NOT SHIPPED AS SHOWN, TRICKY TO PUT TOGETHER
~ These magnets are super strong & don't come assembled in a cylindrical form as shown. They are flat on top of each other separated by plastic. ~ Take care with handling them since they can easily snap pinch your fingers if not careful. ~ It is tricky to put them together if you don't have a separator in between that fits the cylindrical hollow space in-between the magnets. So find a tube that fits then assemble the magnets around it. ~ The other tricky part is getting the correct polarities aligned so the magnets stick together.
C**S
Great quality and measurement accuracy
Used this in a 3d printed generator/motor build that I was testing out. the measurements were accurate enough that I had the build printed before it arrived. These magnets slid right in very snugly and smoothly, so the machining on these are spot on with the description. Very happy with this buy!
N**O
Muy buena potencia
Muy buenos pero hay que manejarlos con sumo cuidado. Se me partió uno al pegarse bruscamente con el otro
A**.
Smaller than I pictured
When I ordered I should have taken a measuring tape and actually measured. Got the part and it was smaller than u pictured in my head, but it works great and it's a strong magnet.
P**E
Wow 😳
Soooo strong! Love putting them into different configurations. Be careful, one wrong move and it will collapse, snaping down to its natural gripping cluster⚡️ It'll startle you but then still put a smile on your face. Even after a few snap implosions, there's no chips or cracks. You'll need stroooong fingers to get it back apart. Have fun!!
D**O
Good items
It arrived on time and it was I need, perfect
R**D
Awesome and crazy strong! perfect for all sorts of fun engineering.
Good and strong magnets with sensible field construction Edit: Price recently increased significantly. Droped from 5 star to 3
Trustpilot
2 weeks ago
1 day ago