Product
Neodymium Bar Magnets
Rectangular NdFeB bar magnets coordinated through Ganzhou suppliers.
Last updated on 2026/02/13
Highlights
- Rectangular profile for assemblies and fixtures
- Axial or through-thickness magnetization on request
- Supplier-confirmed tolerances and coatings
Product Gallery
Rectangular block magnets
Overview
Bar magnets are commonly used in fixtures, motors, and assemblies. Provide length, width, thickness, grade, and magnetization for RFQ.
Specifications
| Shape | Rectangular bar |
| Magnetization | Axial/through thickness on request |
| Grades | N35-N52; high-temp grades on request |
| Dimensions | Custom per drawing |
| Coatings | Ni-Cu-Ni, Zinc, Epoxy, Gold (on request) |
| Tolerance | Typical +/-0.05 mm (confirm per drawing) |
| MOQ | Available on request |
Applications
- Industrial fixtures and holding tools
- Motor rotor assemblies
- Magnetic sensor housings
- Automation jigs
- Magnetic closures
- Linear actuators and solenoids
Customization Options
- Chamfers or edge treatments on request
- Matched sets for assemblies
- Magnetization direction per drawing
- Coating selection based on environment
- Polarity marking or laser etching on request
Sourcing Support
- RFQ essentials: length, width, thickness, grade, magnetization direction, coating, quantity, and operating temperature.
- We review chip-risk points such as thin sections, sharp edges, and handling requirements with suppliers.
- Matched-pair orientation and polarity-marking requests are confirmed before sampling.
Compliance Notes
- RoHS/REACH declarations and CoA can be coordinated on request.
- Dimensional and magnetic inspection reports are available when required for incoming QC.
- Packaging can be aligned to assembly-line kitting and traceability needs.
Lead Time Notes
- Lead time depends on grade, coating, tolerance, and magnetization complexity; confirmed after drawing review.
- Prototype and pilot batches are available subject to supplier capacity.
- Expedite options can be evaluated for urgent production windows.
Need a quote-ready specification review?
Share your drawing, grade target, coating, and quantity. We align supplier feasibility before full RFQ submission.
RFQ Checklist
- Drawing or dimensions with tolerances
- Target grade/strength and operating temperature
- Coating requirements and environment conditions
- Quantity, MOQ, and annual demand
- Application context and magnetization direction
Reference Guides
Procurement-ready guides covering grades, coatings, QC, and RFQ prep.
Materials & Grades
Choosing magnet shapes: bar, block, disc, ring
Match magnet shapes to assemblies, pull force needs, and manufacturability.
Magnetization & Design
Magnetization directions: axial, radial, diametral
How magnetization direction affects performance, assembly, and supplier feasibility.
FAQ
What magnetization direction should I specify?
Specify axial, diametral, or radial based on your assembly. Suppliers confirm feasibility per drawing.
What tolerances are typical?
Typical dimensional tolerance for sintered NdFeB is around +/-0.05 mm, subject to supplier confirmation.
Can you advise on coatings?
Ni-Cu-Ni is common. Zinc and epoxy are available on request. We confirm the best option with suppliers.
Can you add chamfers or rounded edges?
Edge treatments can be requested to reduce chipping. Feasibility depends on size and supplier.
Do you support polarity marking or matched sets?
Polarity marking and matched sets can be requested for assembly alignment.
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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