Product
N52 Neodymium Magnets for High-Force Assemblies
Evaluate N52 for maximum force in compact assemblies, with supplier guidance on temperature risk, coating durability, and manufacturable geometry.
Published on 2026/02/14
Last updated on 2026/02/14
Highlights
- High energy product for compact, force-critical assemblies
- Temperature and demagnetization risk reviewed before quote
- Coating and tolerance decisions aligned to real use environment
Product Gallery
Disc magnets in various sizes
Overview
N52 is chosen when projects need maximum magnetic energy in limited space, but grade selection should not stop at pull force. Share geometry, magnetization direction, operating temperature, surface exposure, and quantity so suppliers can confirm whether N52, heat-stable variants, or fallback grades are the best fit before quotation.
Specifications
| Grade target | N52 (or equivalent grade after supplier feasibility review) |
| Max energy product | Up to ~52 MGOe (grade-dependent) |
| Residual induction (Br) | Typically around 14.2-14.8 kGs (supplier certificate basis) |
| Operating temperature | Must be validated by application profile and heat exposure |
| Coatings | Ni-Cu-Ni, zinc, epoxy, or custom systems on request |
| Tolerance baseline | Commonly +/-0.05 mm, confirmed against drawing and process |
| MOQ and lead time | Confirmed after drawing + volume review |
Applications
- Compact motors, servos, and precision actuators
- High-hold fixtures, jigs, and automation grippers
- Sensor packages and magnetic couplings
- Miniaturized electronics and instrumentation
- Precision positioning and robotic end effectors
- Space-constrained assemblies needing high pull force
Customization Options
- Alternative grades when thermal stability outweighs peak strength
- Magnetization direction tailored to assembly flux path
- Coating selection by humidity, abrasion, and corrosion exposure
- Shape/size tolerances built to drawing and inspection plan
- Lot-level traceability and packaging flow aligned to production line
Sourcing Support
- RFQ essentials: shape drawing, dimensions/tolerances, magnetization direction, operating temperature profile, coating target, annual quantity, and destination.
- We prioritize suitability checks to avoid defaulting to N52 when N50/N48 or heat-stable grades are safer for lifecycle reliability.
- Supplier comparison can include grade certificate format, process capability, and tooling readiness for custom dimensions.
Compliance Notes
- RoHS/REACH declarations and material certifications can be coordinated per project requirements.
- Magnetic and dimensional inspection reports can be aligned to incoming QC checkpoints.
- Packaging labels can include polarity orientation, lot traceability, and handling notes for strong magnets.
Lead Time Notes
- Lead time depends on shape complexity, coating system, tolerance class, and magnetization fixtures.
- Prototype and pilot batches can be arranged after feasibility and tooling review.
- Expedite options are evaluated against technical risk, not only calendar pressure.
Need a quote-ready specification review?
Share your drawing, grade target, coating, and quantity. We align supplier feasibility before full RFQ submission.
RFQ Checklist
- Target pull-force or flux requirement in final assembly condition
- Operating temperature range and peak exposure duration
- Geometry drawing with critical dimensions and tolerances
- Magnetization direction and polarity orientation requirements
- Surface treatment expectations (corrosion and chipping control)
- Volume plan (sample, pilot, mass production) and delivery window
Reference Guides
Procurement-ready guides covering grades, coatings, QC, and RFQ prep.
Materials & Grades
NdFeB grade selection matrix
A practical matrix to align strength, temperature, and environment requirements.
Materials & Grades
Temperature ratings and demagnetization risk
Understand temperature classes, irreversible loss risk, and how to specify grades for thermal stability.
Materials & Grades
NdFeB grades N35 to N52 and temperature classes
How NdFeB grade names relate to strength, temperature limits, and sourcing decisions.
FAQ
Is N52 always the best choice?
Not always. Higher strength can reduce temperature stability. We help confirm the best grade with suppliers.
What operating temperature should I consider?
Operating temperature depends on grade. Share your requirements so suppliers can confirm suitable options.
Can you provide alternative grades?
Yes. We can coordinate alternatives such as N48 or N50 when cost or temperature requires it.
Is N52 available in all shapes?
Most common shapes are possible, but size and magnetization feasibility depend on supplier capability.
Case studies
HVAC - Linear actuator assemblies
Block Magnets for HVAC Linear Actuator Production Line
Scaling from 500 to 10,000 pcs/month of N35 block magnets for HVAC damper actuators while reducing unit cost by 18%.
Subsea / Marine - Magnetic coupling for ROV thrusters
Magnetic Assembly for Underwater ROV Thruster Coupling
Custom magnetic coupling assembly using N42 NdFeB ring magnets with epoxy coating for subsea ROV thruster applications.
Quote Calculator
Estimate lead time and prepare a precise RFQ.
Buyer feedback
Recent RFQ and sourcing coordination highlights.
The RFQ response included grade and coating options with clear lead times.
Marcus Reed
Procurement Manager - EV Motor OEM
Drawing review was fast and the quote matched our tolerance targets.
Ana Soto
Sourcing Lead - Industrial Automation
Inspection data and material declarations were available when requested.
Ravi Menon
Quality Engineer - Appliance Supplier
Trusted by buyer segments
OEM and industrial teams sourcing NdFeB and SmCo magnets.
Request a Quote
RFQ checklist
- Dimensions and shape (include drawing if possible).
- Grade and operating temperature range.
- Coating or surface treatment requirements.
- Quantity, target price, and delivery schedule.
- Tolerance, magnetization direction, and application notes.
Spec sheet downloads
Reference assets to speed up RFQ prep. Confirm specs before ordering.
NdFeB spec sheet (reference)
Grades, coatings, and RFQ checklist for NdFeB magnets.
SmCo spec sheet (reference)
High-temperature SmCo summary and RFQ checklist.
Ferrite spec sheet (reference)
Cost-optimized ferrite basics and RFQ checklist.
Alnico spec sheet (reference)
High-temperature Alnico grades and RFQ checklist.
Bonded NdFeB spec sheet (reference)
Bonded NdFeB process notes and RFQ checklist.
Flexible rubber magnet spec sheet (reference)
Flexible magnet tape basics and RFQ checklist.
Magnetic assembly spec sheet (reference)
Pot magnet assembly fundamentals and RFQ checklist.
Trust & Compliance
Certifications and QC checkpoints aligned to industrial procurement.
ISO 9001
Quality management system
RoHS
Restricted substances compliance
REACH
SVHC compliance on request
Factory Capability
- Custom shapes and grades per drawing
- Tolerances confirmed by supplier QC
- Coating options: Ni-Cu-Ni, Zinc, Epoxy
QC Process
- Raw material verification and grade checks
- Dimensional inspection to critical tolerances
- Surface and coating integrity inspection
Get a Quote
Send your drawing, grade, coating, and quantity. We coordinate a supplier quote and follow up with confirmed specs.
Product data is sourced from partner suppliers and confirmed per order.
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