Anisotropic ferrite ring magnets manufactured to customer drawings for motors, pumps, automotive systems and home appliances. Ring geometry, bore dimensions, pole count and magnetization pattern are specified for the assembly interface and working air gap.
GX manufactures drawing-defined ferrite magnets and motor components for appliance, automotive, pump and industrial motor applications.
Procurement and engineering should release one consistent input package. A product name or nominal size does not define a manufacturable and inspectable part.
Comprehensive solutions from a specialized ferrite ring magnet manufacturer. We offer precision-engineered multipole configurations for diverse motor and sensor applications.
Application:
Automotive Electric Coolant Pump，General DC Motors, Small Pump Motors, Sensor Systems
Typical Features:
Advantage: Suitable for applications requiring basic multipole magnetic performance.
Application:
Dishwasher Pump Motor, Washing Machine Drain Pump
Typical Features:
Advantage: Designed for household appliance motor applications requiring long service life.
Application:
Air Conditioner Fan Motor, BLDC Motor
Typical Features:
Advantage: Optimized for compact and highly efficient motor designs.
Application:
Automotive Actuator Motor, Industrial Motor
Typical Features:
Advantage: Suitable for precision rotation control in harsh environments.
Application:
Encoder Motor, Precision Drive System
Typical Features:
Advantage: Designed for applications requiring precise magnetic feedback.
Application:
High Precision Sensors, Advanced Motor Systems
Typical Features:
Advantage: For applications requiring extremely high magnetic positioning accuracy.
Application:
BLDC Motors, Rotor Assemblies, High Efficiency Systems
Typical Features:
Advantage: Suitable for advanced motor rotor designs requiring peak efficiency.
Application:
Industrial Motors, Large Pump Systems, Special OEM Projects
Typical Features:
Advantage: Complete engineering support from prototype to mass production.
Pole-count capability from 2 to 64 poles. For selected products, the recorded surface-field range is approximately 1,800–2,400 Gs, depending on geometry, pole count, magnetization and measurement conditions.
Custom ferrite powder formulas are developed internally, exclusively for our own magnet production to stabilize final magnetic output. Mass-proven for automotive & high-end home-appliance motors.
GX manufactures ferrite rings with 2 to 64 poles across drawing-defined OD, wall thickness and height ranges. The table shows selected-product surface-field values of approximately 1,800–2,400 Gs; final acceptance is defined for the agreed geometry and measurement condition.
GX supplies multi‑pole ferrite rings for automotive motors, variable‑frequency home appliances, kitchen appliances, mahjong machines and other drawing-defined motor applications.
For selected dishwasher-motor designs, a ferrite ring can provide a BOM cost-reduction route in place of bonded NdFeB when the magnetic circuit and acceptance targets permit.
We supply bare 4‑pole ferrite rings, over‑molded rotors and metal‑sleeved assemblies for HVAC heat pump shielded pipeline pumps.
6-pole ferrite rings offer tight tolerance, application-specific reliability and cost-effective bonded NdFeB replacement for home appliance motors.
Tight inner bore grinding tolerance down to ±0.025 mm and concentricity control up to 0.01 mm improve assembly consistency and reduce motor noise.
Qualified for severe working conditions including thermal shock, compressive stress and continuous operation in dishwasher, refrigerator compressor and drainage pump applications.
High-grade ferrite rings can replace bonded NdFeB in certain applications, reducing material cost while maintaining stable magnetic performance.
Mass-proven for air-condition fans, range hoods and ultra-clean workshop exhaust systems, supporting both household and industrial fan motor requirements.
Final dimensions, grades and magnetic performance are subject to customer drawings and sample approval.
Compact ferrite rings with uniform 12-pole magnetic distribution provide stable flux output for miniature automotive motors, supporting consistent motor performance.
For headlamp-leveling, fuel-pump and HVAC actuator motors, operating temperature, thermal cycling, media exposure and opposing field are reviewed against the selected grade, geometry and magnetic circuit.
Available as bare ferrite rings or complete over-molded rotor assemblies. Multiple mass-production sizes are offered, with custom dimensions and integrated rotor development supported.
Typical dimension D65.3×d55.5×T25 in mass production. Metal-sleeved finished rings are offered, and custom radial ring sizes are supported.
Ferrite ring magnets are highly reliable permanent magnets manufactured from strontium ferrite materials through advanced powder metallurgy and sintering processes. As a leading permanent ferrite magnets supplier, we engineer these components to deliver stable magnetic flux across demanding industrial environments.
The table follows the engineering review sequence for selecting ferrite ring magnet parameters. Reference ranges support initial evaluation; project-specific dimensions, tolerances, magnetic targets and acceptance limits are confirmed in the released drawing, approved specification, quotation and acceptance plan.
| Parameter group | Project-specific review basis | Confirmation and Release Evidence |
|---|---|---|
| Material / route | Sintered strontium ferrite; grade and orientation selected for pole pattern and magnetic circuit | Approved specification records the ferrite grade and isotropic or anisotropic orientation; material-property report at 20°C when specified. |
| Geometry and tolerances | OD, ID, axial length, chamfers, concentricity and runout by drawing | Released drawing defines OD, ID, axial length, chamfers, concentricity, runout, datums and tolerances; verified by the first-article dimensional report. |
| Magnetic or functional requirement | Recorded GX pole-count scope is 2–64 poles; field or waveform requires geometry and measurement conditions | Approved pole count and magnetization pattern; finished-part field, flux or waveform limits include the measurement position, air gap, fixture and temperature. |
| Mechanical / assembly interface | Radial, axial or multipole magnetization; hub, shaft, adhesive and working air gap | Released hub, shaft or bonding-interface dimensions, fit and retention requirements; assembly or retention testing when specified. |
| Operating environment | Temperature, speed, fluid exposure, thermal cycling and opposing field | Agreed limits for temperature, speed, fluid exposure and opposing field; required thermal or environmental tests include duration and pass criteria. |
| Inspection and acceptance | Dimensions plus polarity, pole position, field map, flux or waveform as agreed | Control plan defines the measurement method, gauge or fixture, sample size, inspection frequency, acceptance limits and lot-release records. |
| Supply boundary | Ring magnet; rotor or shaft assembly only when separately released | Quotation and drawing identify the supplied item—ring magnet, rotor assembly or shaft assembly—and the included processing, inspection and documentation scope. |
For dishwasher & washing machine motors, define the ferrite ring magnet by OD, ID, axial length, concentricity and pole count and the hub, shaft, adhesive and motor air gap. State radial, axial or multipole waveform and temperature, speed, fluid exposure and thermal cycling. Sample approval records ring dimensions, pole position and waveform.
Link the ferrite ring magnet to the hub, shaft, adhesive and motor air gap. Review OD, ID, axial length, concentricity and pole count, radial, axial or multipole waveform, and temperature, speed, fluid exposure and thermal cycling together. The release package states ring dimensions, pole position and waveform and the drawing revision.
In hvac & home appliances, OD, ID, axial length, concentricity and pole count can change assembly fit or function. Define the hub, shaft, adhesive and motor air gap, radial, axial or multipole waveform, and temperature, speed, fluid exposure and thermal cycling; approve ring dimensions, pole position and waveform before recurring production.
Define the ferrite ring magnet from OD, ID, axial length, concentricity and pole count, the hub, shaft, adhesive and motor air gap, radial, axial or multipole waveform, and temperature, speed, fluid exposure and thermal cycling. Check ring dimensions, pole position and waveform against the released drawing.
We provide seamless transition from engineering review to prototype development and large-scale mass production. Our in-house tooling and magnetic testing laboratory ensure your specifications are met precisely.
Analyzing drawings, magnetic requirements, and application environment.
In-house mold design and fabrication for powder pressing.
Sintering, grinding, and magnetization of initial prototypes.
Validating flux density, pole distribution, and dimensional tolerances.
Automated production with IATF16949 quality control.
Eight practical answers to common ferrite ring magnet sourcing questions, covering material selection, drawing inputs, pole count, magnetization pattern, dimensional tolerances, magnetic verification, sample approval and recurring-production controls.
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.
Start with ferrite grade, orientation and required pole pattern. Then check the required magnetic output, geometry, temperature and commercial volume before fixing a grade in the drawing.
Control the dimensions that set fit, air gap or working position. For this product, review outer diameter, inner diameter, axial length, concentricity, pole count and waveform; avoid applying a tight general tolerance to non-functional surfaces without a measurement reason.
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.
Temperature capability depends on material grade, geometry, magnetizing state and the magnetic circuit. Provide working air gap, temperature, speed and motor magnetic circuit; GX can then review demagnetization risk and whether the proposed material route fits the duty.
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.
Send the drawing or 3D model, material or magnetic target, outer diameter, inner diameter, axial length, concentricity, pole count and waveform, working air gap, temperature, speed and motor magnetic circuit, expected quantity and acceptance method. State whether tooling, inserts, assembly or magnetization is included in the requested supply scope.
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.
Provide your engineering requirements below. Our technical sales team will review your application and we normally reply within 24 hours.