Custom-shaped Ceramic Block Magnets

Precision-Engineered Hard Ferrite Blocks for OEM, Industrial & Bulk Applications

Everbeen Magnet engineers and manufactures custom-shaped ceramic block magnets tailored to the precise specifications of global distributors, OEM manufacturers, and industrial system integrators. When off-the-shelf rectangular blocks fail due to spatial constraints, complex mounting requirements, or specialized magnetic circuit designs, we convert your 2D/3D drawings into reliable, high-performance magnetic solutions with strict dimensional compliance and stable bulk delivery.

Permanent ceramic (hard ferrite) magnets are produced by shaping and sintering metallic oxides. While standard shapes fit general use cases, custom-machined block configurations allow design engineers to:

Optimize Spatial Integration: Fit restrictive assembly envelopes without altering surrounding mechanical components.

Direct Magnetic Flux: Shape and concentrate magnetic fields precisely within the operational air gap.

Simplify Mechanical Assembly: Integrate custom steps, slots, or mounting holes directly into the magnetic body to reduce secondary fixing parts.

Control Production Costs: Balance required magnetic performance with economical raw material utilization.

Core Material Physical Properties
Density: 4.8 to 5.1 g/cm3

Max Operating Temperature: Up to approximately 250°C (grade and dimension dependent)

Electrical Resistivity: High electrical resistance, minimizing eddy current losses in high-frequency or alternating field environments.

Advanced Custom Machining & Tolerances
Because sintered ceramic is hard and brittle, shaping requires specialized diamond-tool processing. We machine blocks precisely to your documentation:

Custom Geometries: Irregular profiles, stepped blocks, slotted designs, and multi-hole configurations.

Quality Control: Rigorous dimensional sorting ensures consistent fit during automated or manual production, dramatically reducing assembly line rejection rates.

Standard & High-Performance Ferrite Grades
We supply industry-standard material grades engineered for predictable, long-term performance:

Y25: Typical BHmax approx 3.3 MGOe (Cost-effective general industrial use)

Y30: Typical BHmax approx 3.5 MGOe (Balanced performance and stability)

Y30BH: Typical BHmax approx 3.8 MGOe (Enhanced remanence for demanding designs)

Y35: Typical BHmax approx 4.8 MGOe (Maximum energy product in standard ferrite line)

Intrinsic Corrosion Resistance (No Plating Required)
Composed of iron oxide combined with barium or strontium carbonate, hard ferrite contains no rare-earth elements susceptible to rapid oxidation.

Uncoated Reliability: Operates safely in high-humidity, dusty, or outdoor conditions without nickel, zinc, or epoxy coatings.

Risk Elimination: Completely eliminates field failures caused by coating peeling, flaking, or edge corrosion.

Supply Chain Stability & Cost Predictability
Protected from rare-earth market volatility, ceramic magnets offer long-term price stability. They provide an economical, reliable choice for high-volume manufacturing where consistent budgeting is critical.

Compounding & Mixing: Raw ferrite powders are batched under strict formula control.

Field-Aligned Pressing: Material is wet- or dry-pressed within an aligned magnetic field to lock in preferential orientation.

High-Temperature Sintering: Fired in controlled kilns to achieve structural density and permanent magnetic characteristics.

Diamond Precision Grinding: Processed to strict dimensional tolerances using specialized grinding wheels.

Saturation & Quality Audit: Fully magnetized along the target axis and sampled for dimensional, visual, and magnetic performance.

Electric Motors & Generators: Rotor and stator components for DC motors, small generators, and fan assemblies.

Acoustics: Transducers, audio drivers, and industrial alarm actuators.

Magnetic Separation: Sorting drums, recycling collection systems, and fluid filtration channels.

Sensing Devices: Proximity sensors, reed switches, and security triggering mechanisms.

Industrial Workholding: Magnetic chucks, holders, and customized assembly fixtures.

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