1. Product Overview

The wedge-shaped ferrite permanent magnet is a specialized ceramic-based magnetic component known for its high electrical resistivity, exceptional temperature stability, and robust corrosion resistance. Its wedge geometry is optimized for integration into circular magnetic assemblies or rotor systems where space-saving layout and consistent field distribution are essential. These magnets offer stable performance without surface plating and are ideal for applications requiring long-term operation in harsh or high-temperature environments.

2. Manufacturing Process

- Powder Preparation: Raw ferrite materials are mixed, calcined, and milled to micron-level powders.

- Pressing & Molding: Isostatic or dry pressing using wedge-shaped molds for precise geometry.

- Sintering: High-temperature sintering at 1200–1300°C for densification and grain bonding.

- Grinding & Finishing: Machining for dimensional accuracy and smooth wedge mating surfaces.

3. Surface Treatment & Coating Technology

Ferrite magnets are inherently resistant to corrosion and oxidation, thus typically do not require surface coatings. For added protection or marking, the following may apply:

- Epoxy Resin Coating (optional): Adds wear and environmental resistance.

- Laser Engraving: For polarity, orientation or batch coding.

- Anti-rust Oil Treatment: Light oil film for storage under high humidity.

4. Appearance & Dimensional Inspection Standards

- Manual inspection with calipers and angle gauges

- Visual inspection under standard lighting (800–1200 lux)

- 2D imaging system for irregular geometry accuracy

- Magnetic field and polarity verification

- Custom fixture-based slot and wedge matching checks

5. Reliability Testing

- High-temperature aging test (200–250°C)

- Humidity exposure (up to 96 hrs at 95% RH)

- Demagnetization stability test under load

- Vibration and assembly stress testing

6. Packaging Process & Instructions

- Sorting and inspection before packaging

- Mated wedge pairs aligned and packed to preserve orientation

- Vacuum sealed or shrink-wrapped for moisture control

- Internal partitions or foam to prevent chipping

- Cartons labeled with grade, quantity, and orientation

7. Application Fields

- Brushless DC Motors (BLDC): Segment rotor rings for consistent torque and magnetic balance

- Generator Rotors: Wedge layout for compact flux path control

- Magnetic Couplings: Torque transmission in chemical pumps

- Household Appliances: Motors in air conditioners, washing machines, etc.

- Automotive: Power steering, windshield motors, seat actuators

- Fan Blowers and HVAC Systems: Cost-effective and stable rotor design

8. Usage Precautions

- Handle with care to avoid chipping; ferrite is brittle

- Avoid sudden temperature shocks post-sintering

- Store in dry environments away from alkaline substances

- Confirm proper polarity and wedge orientation before assembly

9. Customization & Services

- Full customization of angle, height, and radius matching

- Custom magnetization direction and wedge quantity per ring

- Support for simulation-based flux testing

- Technical drawings, sample preparation, and material certificates available on request

10.Why choose Jinconn Magnet

10.1Company Introduction

Dongguan Jinkun New Materials Holdings Co., Ltd.is dedicated to the research, development, production, and sales of high-performance magnetic materials. Guided by the philosophy of "Technology as the foundation, Quality as the soul," the company strives to become a global leader in providing magnetic material solutions. Its products are widely applied in areas such as new energy vehicles, intelligent manufacturing, electronic communications, automation equipment, and medical devices, earning the trust of customers both domestically and internationally. Looking ahead, the company will continue to be driven by customer needs, foster technological innovation and industry integration, support the development of the global smart industry, and endeavor to become a benchmark and strategic partner in the magnetic materials sector.

10.2Team Spirit

We’re happy to provide free, customized magnetic solutions designed to meet your unique requirements.

Whether you need samples, technical specifications, or certifications—including MSDS, RoHS, ISO 9001, QC080000, IATF 16949, ISO 14001, or ISO 27001—our experienced sales engineers are here to support you every step of the way.