Powder Formula & Pre‑sintering Parameters
Tune raw‑material proportion and rotary‑kiln temperature profile according to target magnetic property, operating temperature and end‑use application scenarios.
Ceramic Ferrite Magnets Manufacturer
GX manufactures sintered ceramic ferrite magnets in rings, arcs, blocks and other drawing-defined geometries for motors, household appliances, automotive systems and industrial equipment. Material grade, dimensions, magnetic orientation and magnetization requirements are reviewed against the customer’s assembly interface and operating conditions.
- 30+ Years Ferrite Magnet Manufacturing Experience
- Internal Ferrite Material Development Capability
- Custom Shapes and Magnetic Grades
- Stable OEM Mass Production
Over 30 Years in Ferrite Component Manufacturing
GX manufactures drawing-defined ferrite magnets and motor components for appliance, automotive, pump and industrial motor applications.
Before quotation
Confirm Ceramic Ferrite Magnet Inputs Before Quotation
Procurement and engineering should release one consistent input package. A product name or nominal size does not define a manufacturable and inspectable part.
Drawing, geometry and interfaceProvide the 2D/3D drawing and revision: ring, arc, block, disc, cylinder or custom geometry with critical dimensions, datums and mating surfaces.
Material and functional targetConfirm primary strontium ferrite grade; barium ferrite only for legacy or drawing-specific requirements; state Br, Hcb, Hcj and (BH)max target plus finished-part magnetization and magnetic acceptance.
Operating boundaryState temperature, external field, moisture, medium and mechanical retention.
Demand and acceptanceConfirm sample and annual demand, drawing revision, material/dimensional reports and magnetic test method.
Hard Ferrite Magnets Product Portfolio
A comprehensive range of ceramic ferrite magnets designed for motor, automotive, home appliance and industrial applications.
Ferrite Ring Magnets
Application:
Motor rotors, Pump motors, Home appliances
Description:
- Multi-pole ferrite ring magnets with customized magnetic pole patterns
- Available in various pole configurations and dimensions
Feature: Application review: permanent magnet motors, pumps, sensors and precise rotary systems.
Ferrite Arc Magnets
Application:
Permanent magnet motors
Description:
- Arc magnets designed for rotor assemblies
- Customized radius and magnetic orientation
- Precise dimensional control for motor assembly
Feature: Optimized arc angles and magnetic orientation for motor efficiency improvement.
Ferrite Block Magnets
Application:
Industrial motors, Magnetic assemblies
Description:
- Custom dimensions according to customer drawings
- Various magnetic grades available
- Controlled dimensional tolerances
Feature: Suitable for magnetic assemblies, holding devices and industrial motor components.
Ferrite Disc Magnets
Application:
Sensors, Small motors
Description:
- Stable magnetic output for compact applications
- Available in various diameters and thicknesses
- Consistent performance across production batches
Feature: Ideal for sensor systems, small motor applications and compact magnetic devices.
Ferrite Cylinder Magnets
Application:
Magnetic devices, Motor components
Description:
- Solid cylindrical magnets in various dimensions
- Axial or radial magnetization options
- Precision ground surfaces
Feature: Used in magnetic devices, motor components and industrial holding systems.
Ferrite Horseshoe Magnets
Application:
Special magnetic applications
Description:
- Horseshoe shape for concentrated magnetic field
- Custom pole configurations available
- Strong holding force design
Feature: Designed for special magnetic applications requiring concentrated field strength.
Ferrite Magnetic Sheets
Application:
EMI shielding, Electronic applications
Description:
- Flexible ferrite sheets for EMI suppression
- Various thicknesses and sizes
- Effective noise absorption
Feature: Effective EMI shielding solution for electronic devices and communication equipment.
Custom Ferrite Magnets
Application:
OEM projects
Description:
- From drawing review to prototype and mass production
- Custom shapes, grades and magnetization patterns
- Full engineering support from concept to delivery
Feature: Complete engineering support from drawing review to mass production for OEM projects.
Why choose us for your project 01
Optimize Ferrite Magnetic Powder From In‑house Rotary Kiln
GX controls hard ferrite powder at source with our independent R&D team and rotary‑kiln pre‑sintering. Powder formula, raw‑material ratio and pre‑firing parameters are evaluated together, since these factors directly decide magnet grain structure, magnetic performance and batch‑to‑batch consistency for your assembly.
Source‑level Batch Stability
All self‑produced ferrite powder is restricted for internal manufacturing only. Avoid performance fluctuation caused by external raw‑material supply.
Powder Grade Verification
Each powder batch undergoes lab inspection. Powder characteristics serve as baseline to guarantee finished magnet acceptance criteria.
Why choose us for your project 02
Optimize Ferrite Powder By Air‑Classification & Ball‑Milling Process
GX refines pre‑sintered ferrite coarse powder via Raymond mill and air‑classification, producing narrow‑distribution coarse powder around 2 μm. Particle‑size, ball‑milling parameters and fineness are strictly controlled. These upstream powder features directly affect sintering shrinkage, BH performance and batch consistency of finished multi‑pole ferrite rings.
Raymond mill plus air‑classification replaces traditional continuous ball milling for better coarse‑powder consistency with narrow particle‑size range.
Narrow‑range coarse powder allows 4 mm small steel balls. Larger specific surface raises grinding efficiency, shortens cycle and cuts energy consumption.
Every powder lot gets particle‑size & fineness inspection. Stable powder serves as reliable baseline for later pressing and sintering.
Tight particle‑size control optimizes BH curve, ensuring stable and repeatable magnetic output for mass‑produced ferrite magnets.
Why choose us for your project 03
Qualify Dishwasher Ferrite Rings With Complete Reliability Validation
Reliability validation matters only under real‑world dishwasher operating conditions. GX develops dedicated formula & grinding process for dishwasher motor rings, and performs full thermal‑shock, high‑speed rotation and compressive strength tests to verify mechanical and magnetic performance.
Dedicated material & process qualification
Adopt custom ferrite formula, optimized powder preparation and rotary‑table grinding process matched for dishwasher motor application scenarios.
Mechanical performance verification
Carry out compressive strength test and high‑speed rotation integrity test, to confirm anti‑crushing capacity and anti‑fragmentation performance under extreme working status.
Thermal‑shock & magnetic acceptance
Context for the next section: Reliability test data serves as pre‑condition for sample approval; formal mass production supply shall be confirmed against released drawing, agreed specification and acceptance plan.
Context for the next section: Reliability test data serves as pre‑condition for sample approval; formal mass production supply shall be confirmed against released drawing, agreed specification and acceptance plan.
What Are Ceramic Ferrite Magnets?
Ceramic ferrite is a sintered hard magnetic material used to manufacture permanent magnets. Ferrite powder is prepared, pressed and sintered into the required geometry, then machined and magnetized to meet drawing-defined dimensional and magnetic requirements.
Material Characteristics
- • Strontium Ferrite Material
- • High corrosion resistance
- • Stable temperature characteristics
- • Cost-controlled magnetic solution
- • Long service life
Common Manufacturing Forms
- • Ring Magnets
- • Arc Magnets
- • Block Magnets
- • Disc Magnets
- • Custom Ferrite Shapes
Technical parameters for quotation
Define the Ceramic Ferrite Component Before Confirming Specifications
The table organizes buyer inputs in engineering order. It does not turn a reference range into a universal guarantee; final values become supply commitments only after confirmation in the released drawing, approved specification, quotation and acceptance plan.
| Parameter group | Project-specific review basis | Confirmation and Release Basis |
|---|---|---|
| Material / route | Sintered strontium ferrite is the primary system; barium ferrite only for legacy or drawing-specific requirements | Approved material grade and isotropic or anisotropic condition; Br, Hcb, Hcj and (BH)max report at 20°C when specified. |
| Geometry and tolerances | Ring, arc, block, disc, cylinder or custom drawing-defined geometry | Released drawing with datums and tolerances for OD, ID, length, thickness, flatness or concentricity as applicable; verified by the first-article dimensional report. |
| Magnetic or functional requirement | Br, Hcb, Hcj and (BH)max material properties; finished-part output depends on shape, orientation and circuit | Finished-part limits for flux, surface field, polarity, pole position or waveform, with the measurement air gap, position, fixture and temperature defined. |
| Mechanical / assembly interface | Isotropic or anisotropic orientation plus axial, radial or drawing-defined magnetization | Approved locating and mating dimensions, adhesive or press-fit interface and retention requirement; assembly or retention testing when specified. |
| Operating environment | Temperature, external field, air gap, moisture, medium and mechanical retention | Agreed operating-temperature and exposure limits; thermal-cycle, moisture, medium or corrosion testing with defined duration and pass criteria. |
| Inspection and acceptance | Material test, dimensional inspection and a defined finished-part magnetic method | Control plan defines the measurement method, gauge or fixture, sample size, inspection frequency and lot-release record. |
| Supply boundary | Ferrite magnet or explicitly quoted magnetic component | Quotation and drawing identify the supplied magnet and the included grinding, magnetization, inspection, packaging and documentation scope. |
GX-confirmed ferrite material options
| GX grade | Br (Gs) | Hcb (Oe) | Hcj (Oe) | (BH)max (MGOe) |
|---|---|---|---|---|
| FSB | 4,200 ± 100 | 3,300 ± 150 | 3,350 ± 200 | 4.0 ± 0.2 |
| FB6N | 4,300 ± 100 | 3,300 ± 150 | 3,350 ± 200 | 4.4 ± 0.2 |
| FB7N | 4,400 ± 100 | 3,300 ± 150 | 3,350 ± 200 | 4.6 ± 0.2 |
| FB9N | 4,600 ± 100 | 3,500 ± 200 | 3,600 ± 200 | 5.1 ± 0.2 |
| FB12B | 4,650 ± 100 | 4,300 ± 200 | 4,850 ± 200 | 5.2 ± 0.2 |
| FB13B | 4,750 ± 100 | 4,300 ± 200 | 4,850 ± 200 | 5.3 ± 0.2 |
These values describe the material grade. Finished-part output depends on geometry, orientation, magnetization, temperature, magnetic circuit and measurement conditions.
Ceramic Ferrite Requirements by Application and Magnetic Circuit
Home Appliance Motors
For pump, fan and appliance motors, define the ring or arc geometry, rotor-bore or stator interface, pole count and working air gap. Sample approval verifies critical dimensions, polarity, flux or waveform. Moisture exposure and hot/cold cycling are included when required by the appliance program.
Automotive Motors
Industrial Motors
Magnetic Actuators and Assemblies
Define the magnet geometry, pole-face interface, mating steel, working air gap, magnetization direction and target pull force or field. Validation uses an agreed fixture, measurement position and temperature to confirm dimensional fit and finished-component magnetic response.
Move From Ferrite Selection to Drawing-Controlled Supply
From initial engineering review to mass production, we provide complete custom ferrite magnet development support for OEM projects.
1
Engineering Review
Analyzing drawings, magnetic requirements, and application environment.
2
Material Selection
Selecting the optimal ferrite grade (FB6, FB9, FB12) based on performance requirements.
3
Tooling Development
In-house mold design and fabrication for powder pressing.
4
Prototype
Sintering, grinding, and magnetization of initial prototypes.
5
Testing
Validating flux density, pole distribution, and dimensional tolerances.
6
Mass Production
Automated production with IATF16949 quality control and stable supply capacity.
Quality Certifications
IATF16949:2016
ISO14001
30+ Years
OEM Certified
Engineering and sourcing FAQ
Ceramic Ferrite Magnets Questions Buyers Should Resolve
Practical answers for ceramic ferrite magnet sourcing, covering material selection, drawing inputs, magnetic targets, dimensional tolerances, sample validation and recurring-production controls.
How do Ceramic ferrite magnets differ from ceramic ferrite and rare-earth magnets?
The main differences are the material route, achievable geometry, magnetic output and assembly method. Compare them in the actual magnetic circuit and operating condition; the product name alone is not enough to select the part.
How should engineers select the material for Ceramic ferrite magnets?
Start with strontium-ferrite grade plus isotropic or anisotropic orientation. Then check the required magnetic output, geometry, temperature and commercial volume before fixing a grade in the drawing.
Which dimensions should be toleranced on Ceramic ferrite magnets?
Control the dimensions that set fit, air gap or working position. For this product, review shape, dimensions, tolerance class, magnetization direction and magnetic target; avoid applying a tight general tolerance to non-functional surfaces without a measurement reason.
What magnetization information is needed for Ceramic ferrite magnets?
Specify the magnetization axis or pole pattern, pole count where applicable, and the acceptance method. A field value must also state the measurement location, fixture or air gap so supplier and buyer evaluate the same condition.
How does temperature affect Ceramic ferrite magnets?
Temperature capability depends on material grade, geometry, magnetizing state and the magnetic circuit. Provide temperature, air gap, external field and exposure environment; GX can then review demagnetization risk and whether the proposed material route fits the duty.
How should magnetic performance be verified for Ceramic ferrite magnets?
Use an agreed method tied to the application: material-property testing, surface field at a defined position, flux, pull force, pole pattern or waveform. The released drawing and acceptance plan should state the instrument, fixture and limits.
What information should an RFQ for Ceramic ferrite magnets include?
Send the drawing or 3D model, material or magnetic target, shape, dimensions, tolerance class, magnetization direction and magnetic target, temperature, air gap, external field and exposure environment, expected quantity and acceptance method. State whether tooling, inserts, assembly or magnetization is included in the requested supply scope.
How are samples approved before recurring Ceramic ferrite magnets orders?
Agree the drawing revision, tooling state, critical dimensions and magnetic test method before sample release. Approval should identify the sample record and any deviations; recurring orders then follow the released specification, quotation and control plan.
Send Your Ferrite Drawing for Review
Provide your engineering requirements below. Our technical sales team will review your application and we normally reply within 24 hours.