No category punishes careless spec-reading like magnets. Our October 2026 sampling of Made-in-China.com listings put one product — custom Halbach array assemblies — at a 200× spread from $0.50 to $100 per piece. That number is real, but it is not a price range in the normal sense: the low end is individual NdFeB arc segments at volume pricing, while the high end is complete samarium-cobalt Halbach assemblies in single-piece quantity. Parts and assemblies share a listing page; they do not share a cost structure.
This guide shows how to read magnet price bands so the number you anchor your cost model to actually corresponds to what you are buying.
Price data source: publicly listed wholesale prices on mainstream B2B platforms, collected on 2026-10-18. These are reference ranges only — actual transaction prices vary significantly with order quantity and customization requirements. For full methodology, see Understanding Reference Prices.
The Category at a Glance
| Product | Reference Range (USD/pc) | Spread | What Anchors Each End |
|---|---|---|---|
| N52 Sintered NdFeB Arc Magnets (motors) | 0.02 – 10.00 | 500× | Small drone-motor segments at 1,000-piece volume / large EV- and generator-class segments at low volume |
| Ni-Cu-Ni Countersunk Block Magnets | 0.05 – 1.50 | 30× | Small thin blocks in volume / large 40×20×5 mm-class blocks |
| Custom Halbach Array Assemblies | 0.50 – 100.00 | 200× | Single arc segments at volume / complete SmCo assemblies at MOQ 1–2 |
| N42SH Diametric Cylinder Magnets | 0.10 – 10.00 | 100× | Standard cylinders in bulk / large generator-grade cylinders |
| Rubber-Coated Pot Magnets | 0.20 – 1.95 | ~10× | Small D22 bodies / large D88 bodies, transparent size ladder |
Driver 1: Size — Magnet Cost Is Volume-Driven, Not Piece-Driven
Sintered NdFeB is priced by material volume, and magnet material is expensive. An N52 arc segment that fits a drone motor and a generator segment three sizes up differ in material volume by orders of magnitude — which is exactly why the motor-arc band runs from $0.02 to $10.00. The countersunk-block ladder makes the same point at smaller scale: the band’s $0.05 end is small, thin blocks in volume, while $1.50 buys the 40×20×5 mm class. Even rubber-coated pot magnets — the flattest band in the category — step cleanly by diameter (D22 → D88).
Sourcing rule: never compare two magnet quotes without normalizing for dimensions and material volume. A per-piece number without mm specs is not a price.
Driver 2: MOQ — the $0.0X Prices Live at Volume
Small magnet unit prices are brutally MOQ-sensitive: at MOQ 100 versus 10,000 pieces, the same part’s unit price can move more than 5×. Most of the sub-$0.10 figures in these bands correspond to four- and five-figure order quantities. If your program needs 500 pieces, the floor of the reference band is not your price — the middle is.
Driver 3: Grade, Coating, and Temperature Rating
Within a given size, the premium stack is:
- Grade (N35 → N52): higher energy product means more rare-earth content per unit of performance.
- Temperature rating (SH, and above it UH/EH): high-temperature grades add cost that standard N-grade listings never show. Note our N42SH band inherits a known limitation: generic cylinder listings were used as proxies, so the true SH-grade premium is not separately visible in the numbers — treat that band as conservative.
- Coating (Ni-Cu-Ni, epoxy, rubber): the standard Ni-Cu-Ni stack is the baseline; specialty coatings add a modest, negotiable increment.
The Traps Our Sampling Removed (So You Can Spot Them Live)
During collection we rejected listing patterns you will still see on-platform:
- Placeholder prices — a $9,999 single-point listing is a lead form, not a quote.
- Sample bait — sub-$0.15 pricing at MOQ 1 exists to harvest inquiries; it never survives quotation.
- Category drift — magnetic pots, fishing/recovery magnets, and filter rods masquerading as standard product listings.
- Unanchored wide ranges — “$0.01–1.00” with no size attached tells you nothing until the spec sheet arrives.
If your supplier’s quote resembles any of the above, ask for the spec-anchored tier table before proceeding.
Market Volatility: Read the Date, Not Just the Number
Magnet prices ride the praseodymium-neodymium metal market, and those prices move. These bands are a 2026-10-18 snapshot; for sintered NdFeB programs, re-validate any range older than one or two quarters before locking a cost model. A quote that looks “high” against a stale listing may simply reflect a metal-market move.
Budget Anchors by Program Type
- Drone / small-motor components: motor-arc segments in volume sit at the $0.02–0.08 end; prototype quantities at low volume will land 10–50× higher per piece.
- Industrial holding/fixing: countersunk blocks and rubber-coated pots are sub-$2 products at almost any tier — here the negotiation is consistency and coating quality, not unit price.
- Generator / EV programs: budget against the $10 top of the arc and cylinder bands, and treat Halbach assemblies as engineered components (quote per drawing) rather than catalog items.
Related products: N52 Sintered NdFeB Arc Magnets for Motors · Custom Halbach Array Magnetic Assemblies · Ni-Cu-Ni Coated Countersunk Block Neodymium Magnets
Methodology: Understanding Reference Prices on Product Pages
Ready to move from reference ranges to binding quotes? Submit an RFQ with your grade, dimensions, coating, temperature rating, and target quantity — and compare written quotations against the bands above.