Ceramic VIII ferrite disk magnet measuring 1.5 inches in diameter × 1/8 inch thick, axially magnetized, with a listed 334.19 gauss surface field and 1.61 lb pull force. SKU 8159.
SKU 8159 is a Ceramic VIII ferrite disk magnet measuring 1.5 inches in diameter × 1/8 inch thick. It is axially magnetized, with the poles on the two flat circular faces. Its broad, thin geometry suits displays, fixtures, holding features, prototypes, and production assemblies where economical ferrite material and natural corrosion resistance are useful.
| Size | 1.5 inch diameter × 0.125 inch thick |
| Material | Ceramic VIII ferrite |
| Br | 4,080 gauss |
| Surface field | 334.19 gauss |
| Listed pull force | 1.61 lb / 0.73 kg |
| Tolerances | ±0.004 inch |
| Listed maximum temperature | 482°F |
| Magnetization | Axial |
Confirm the target material, contact area, operating air gap, mounting method, adhesive selection, and dimensional stack-up in the final assembly. Ferrite is hard and brittle, so avoid impact, uneven clamping, and excessive mechanical stress. Provide suitable support during installation and validate the complete magnetic circuit under the expected operating conditions.
The listed 1.61 lb pull force is a comparison value under defined contact conditions, not a guaranteed safe working load. Air gaps, target-steel thickness, surface roughness, misalignment, and shear loading can reduce usable holding force. Validate performance in the final assembly.
Use the magnet pull force calculator for preliminary screening, review the temperature derating calculator, browse ceramic and ferrite magnets, or submit the magnet RFQ builder for volume pricing and custom requirements.

| Dimensions | 1 × .25 in |
|---|---|
| Diameter | 1.5" |
| Thickness | 1/8" |
| Magnetization Direction | Axial |
| Pull Force | 1-5lbs |
| Shape | Disk / Disc |
15 in stock
| Title | Quantity | Price Per Magnet |
|---|---|---|
| Quantity Discounts | 1 - 9 | 0% $2.00 |
| Quantity Discounts | 10 - 49 | 6.15% $1.88 |
| Quantity Discounts | 50 - 99 | 10% $1.80 |
| Quantity Discounts | 100 - 999 | 15% $1.70 |
| Quantity Discounts | 1000 - 4999 | 30% $1.40 |
| Quantity Discounts | 5000 - 9999 | 40% $1.20 |
| Quantity Discounts | 10000 + | 50% $1.00 |
Custom magnets and magnetic assemblies, factory-direct. PPAP and ISO 9001 documentation available.
Start a Custom Order →10M+ magnets stocked on both coasts, fixed-rate pricing up to 1 year, credit terms and blanket orders.
Talk to Sales →Start with Magnets 101, work up to 201, then test yourself against the grade selector in the Knowledge Base.
Open the Knowledge Base →The 26 most-used guides are listed here. The full library runs to 68 guides and 29 tools, all filterable in one place.
Browse All Resources →Our free iOS app puts the full catalog and tools in your pocket.
Download on the App Store →True radial magnetization, ISO 9001, U.S. inventory on both coasts, same-day shipping by 2PM EST.
Why Radial Magnets →