BSH Thermal Cycles
GX Magnet and Proterial are the only two suppliers worldwide to pass BSH’s four-month test covering 30,000 hot–cold water cycles.
GX Magnet Products·Magnet manufacturing since 1992
From Ferrite Rings to NdFeB Motors — One Trusted Source for Custom Magnetics
Ferrite, sintered NdFeB, injection-molded and bonded magnets, plus complete motor components — stators, rotors, housings — all manufactured to your drawings with precision and consistency.
Product selection
WHY CHOOSE US FOR YOUR PROJECT
Six magnet families. One engineering standard. Explore available types, manufacturing scope and customization options for each.
Ferrite Magnets
Sintered hard ferrite magnets made to your drawings — Y30–Y35 grades, custom geometry, orientation and magnetization, 100% performance-tested per project.
Start with material grade selection, then choose ring, arc, block or bar geometry.
NdFeB Magnets
Sintered NdFeB magnets for compact magnetic circuits demanding high magnetic output, tight dimensional control and application-specific coatings — with full grade coverage from N35 to N58, including M/H/SH/UH/EH/AH series.
Choose by shape—ring, bar, disc or arc—or use the custom route for non-standard geometry, magnetization and coating requirements.
Injection & Bonded Magnets
Injection-molded and bonded ferrite or NdFeB components for complex geometries, integrated inserts and multipole magnetization — with 2–64 pole capability, automated production lines, and balanced rotors to ≤10mg.
Choose the material system first, then confirm the molding route, insert design, pole pattern and inspection method.
Motor Stators
Stator cores and approved stator subassemblies built to your drawing — magnetic structure, lamination stack and mechanical interfaces defined per project. Annual capacity: 3.6 million industrial stators.
Copper windings, bus bars and winding temperature sensors are supplied only when included in the confirmed project scope.
Motor Rotors
Permanent-magnet, bonded-magnet and mechanical rotor assemblies — with pole layout, shaft interfaces, runout, balance and operating speed fully controlled. Dynamic balancing available to ≤10mg for high-speed applications.
Select from bonded or permanent-magnet rotors, complete rotor assemblies, or shaft-integrated versions to match your required supply state.
Motor Housings
Motor housings manufactured to drawing — material, stator bore, bearing and end-cover interfaces, mounting geometry, cooling features and surface protection all defined per project. Available in deep-drawn, welded or machined versions.
Casting or fabrication route, machining tolerances and surface treatment are confirmed directly from the customer drawing.
Multipole ferrite ring magnets
Driving the Core of Efficient Dishwasher & Pump Motors
GX integrates material preparation, forming, sintering, grinding and multipole magnetization to support repeatable production for appliance, pump and automotive motor programs.
Share of BSH Demand
Since starting mass production in 2016, GX has supplied more than 70% of BSH’s dishwasher ring-magnet demand and is the exclusive supplier for its new-generation program.
Higher Magnetic Flux
GX’s high-flux process delivers 5–6% more magnetic flux than comparable products made from an equivalent raw-material grade.
Greater Compressive Strength
Selected GX ring magnets achieve approximately 2.5 times the compressive strength of competing products.
GX Magnet · Validated Performance Video
Manufacturing Capabilities Behind Consistent Production · 01
Double-Layer Kiln Technology: Thermally Stable Sintering for Consistent Ferrite Geometry
GX’s patented double-layer kiln separates low-temperature moisture removal from rapid sintering, improving dimensional stability while reducing grinding stock and reusing heat more efficiently.
Patented Double-Layer Kiln SystemGX developed the system in-house and became the first company in China to use it, completing conversion of its ferrite sintering lines in 2020.
Dehydration & Heat Recovery
The upper layer removes moisture using recovered kiln heat, reducing sintering distortion, grinding stock and energy use.
The upper layer removes moisture using recovered kiln heat, reducing sintering distortion, grinding stock and energy use.
Rapid Final Sintering
The lower layer completes rapid final sintering after dehydration, separating moisture removal from high-temperature firing.
The lower layer completes rapid final sintering after dehydration, separating moisture removal from high-temperature firing.
Automated LoadingAutomated loading and unloading reduce manual handling and operator workload, cutting the operating requirement from three operators to one.
Manufacturing Capabilities Behind Consistent Production · 02
Raymond Mill + Air Classification: Narrow Particle Distribution for Consistent Magnetic Performance
Raymond milling, air classification and in-house formulation give GX direct control over particle size and magnetic properties before forming.
In-House Calcination
GX calcines ferrite feedstock in-house, allowing the resulting coarse powder to be prepared for controlled air classification.
GX calcines ferrite feedstock in-house, allowing the resulting coarse powder to be prepared for controlled air classification.
≈2 μm Classified PowderRaymond milling and air classification produce particles around 2 μm, with a narrower distribution than conventional 3–7 μm ball-milled powder.
4 mm Milling MediaUsing 4 mm instead of typical 6–8 mm steel balls increases grinding contact area, shortens milling time and reduces energy use.
Process Route & B–H CurveThe classification and fine-milling route follows principles similar to TDK’s process and supports a more favorable B–H curve.
Manufacturing Capabilities Behind Consistent Production · 03
Upgrade of grinding line (on-line automatic cleaning + on-line inspection)
Forming, sintering, grinding, cleaning and inspection are connected in one continuous line, reducing handling damage and variation between recurring production batches.
Continuous Grinding LineConnected grinding operations replace separate workstations, reducing transfers and the chipping or impact damage they can cause.
20–30% Labor CostAutomation lowers direct labor cost to approximately 20–30% of competing separated grinding routes.
High-Pressure In-Line CleaningHigh-pressure water cleaning replaces stand-alone ultrasonic cleaning, reducing energy use and eliminating another transfer step.
In-Line Inspection · >90% YieldIn-line inspection reduces handling and impact damage; most GX products achieve a final production yield above 90%.
Material data
GX Ferrite Grades Made from In-House Powder
This table lists selected GX ferrite material grades produced from in-house powder. The values are based on measurements taken at 20°C using standard test specimens.
| GX Grade | Br (G) | Br (mT) | Hcb (Oe) | Hcj (Oe) | (BH)max (MGOe) |
|---|---|---|---|---|---|
| FB5B | 4,200±100 | 420±10 | 3,300±150 | 3,350±200 | 4.0±0.2 |
| FB6N | 4,300±100 | 430±10 | 3,300±150 | 3,350±200 | 4.4±0.2 |
| FB7N | 4,400±100 | 440±10 | 3,300±150 | 3,350±200 | 4.6±0.2 |
| FB9N | 4,600±100 | 460±10 | 3,500±200 | 3,600±200 | 5.1±0.2 |
| FB12B | 4,650±100 | 465±10 | 4,300±200 | 4,850±200 | 5.2±0.2 |
| FB13B | 4,750±100 | 475±10 | 4,300±200 | 4,850±200 | 5.3±0.2 |
Material data
Selected GX Sintered NdFeB Material Grades
Selected production grades spanning M to AH coercivity classes. Values are standard material-property ranges; maximum working temperatures are based on L/D ≥ 0.7.
| GX Grade | Br (kGs) | Hcb (kOe) | Hcj (kOe) | (BH)max (MGOe) | Max. Working Temp. (°C) |
|---|---|---|---|---|---|
| 54M | 14.5–15.0 | >13.2 | >14 | 52–55 | 100 |
| 52H | 14.3–14.8 | >13.1 | >17 | 50–53 | 120 |
| 48SH | 13.6–14.0 | >12.7 | >20 | 46–49 | 150 |
| 52UH | 14.2–14.5 | >13.5 | >25 | 49–52 | 180 |
| 48EH | 13.6–14.1 | >13.0 | >30 | 45–49 | 200 |
| 45AH | 13.3–13.7 | >12.5 | >35 | 42–46 | 250 |
HARD FERRITE MANUFACTURING PROCESS
From In-House Powder to Final Inspection
In-House Powder Preparation
GX pre-fires and air-classifies its ferrite powder to establish a narrow particle-size distribution before milling and forming.
Magnetic-Field-Assisted Forming
Tooling geometry, pressing direction and magnetic orientation are coordinated to control green-part density and sintering shrinkage.
Controlled Sintering and Grinding
Staged dehydration and sintering improve dimensional stability before critical dimensions are ground to the approved drawing.
Magnetization and Final Inspection
Pole position, magnetic waveform, flux and drawing-defined dimensions are verified against the approved specification before lot release.
MANUFACTURING DATA
Manufacturing Performance at a Glance
>90%PRODUCTION YIELD
SELECTED PRODUCTS UP TO 95%
SELECTED PRODUCTS UP TO 95%
70–75%MATERIAL UTILIZATION
IN FERRITE PRODUCTION
IN FERRITE PRODUCTION
RMB 350M2024 FERRITE MAGNET
PRODUCTION VALUE
PRODUCTION VALUE
RMB 800M2024 MOTOR-RELATED
PRODUCTION VALUE
PRODUCTION VALUE
30+ Years Supporting Global OEM Programs
GX manufactures drawing-defined ferrite magnets and motor components for appliance, automotive, pump and industrial motor applications.
PRODUCT SELECTION
Find the Right Product Family
Project Requirement
Recommended Family
Key Inputs for RFQ
Cost stability and corrosion resistance
Ferrite Magnets
Grade, geometry, orientation and magnetization
Higher output in compact space
NdFeB Magnets
Grade, temperature, coating and magnetic target
Complex shape or integrated insert
Injection & Bonded Magnets
Compound, polymer, insert and pole pattern
Fixed magnetic field or stator structure
Motor Stators
Core, magnet, winding and supply boundary
Magnet, core, hub and shaft integration
Motor Rotors
Speed, runout, balance and retention
Motor support, positioning and cooling
Motor Housings
Material, bore, bearing seat and mounting interface
Send Your Drawing for Review
Include the application, dimensions, material or grade, magnetic target and estimated annual demand. Our team will identify the relevant product family and manufacturing route.