Comparison
Custom Magnets Vs Stock Magnets
Compare custom magnets with stock magnets for fit, performance, and cost.
Last updated on 2026/02/01
Highlights
- Custom grades and magnetization tuned to your application
- Drawing-based specs confirmed with suppliers
- Stock options suggested when speed matters
Product Gallery
Disc magnets in various sizes
Overview
Stock magnets ship fast but may force design compromises. Custom magnets match your drawing and performance targets. Use this comparison to decide based on risk and volume.
Comparison
| Criteria | Custom magnets | Stock magnets |
|---|---|---|
| Fit to application | Designed to drawing and assembly | Generic fit, may require compromise |
| Performance tuning | Grade, coating, magnetization optimized | Fixed grade and coating |
| MOQ and lead time | MOQ and tooling lead time apply | Faster lead time for available stock |
| Unit cost at scale | Optimized cost at volume | Higher per-unit at scale |
| Supply continuity | Consistent specs across batches | Stock changes by supplier |
| Documentation | Material declarations on request | Limited documentation |
Reference Guides
Procurement-ready guides covering grades, coatings, QC, and RFQ prep.
Coatings & Corrosion
Corrosion protection for rare earth magnets
Environment-based guidance for selecting coatings and corrosion controls.
Manufacturing & Quality
Inspection and testing for NdFeB magnets
How to define inspection scope, measurement methods, and acceptable criteria.
Sourcing & Logistics
Magnet storage and handling safety
Storage, handling, and packaging guidance to avoid chipping, demagnetization, and injury.
FAQ
When should I choose stock magnets?
Stock magnets work best for quick replacements or non-critical assemblies.
Can you coordinate custom prototypes?
Yes. We can request prototype or pilot orders based on supplier availability.
Do you help select grades and coatings?
We align grade, coating, and magnetization with your application requirements.
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.
Request a Quote
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.