Ferrite Rotor Arc Magnet OD80×ID60×20mm

Ferrite Rotor Arc Magnet OD80×ID60×20mm is a sintered ceramic permanent magnet designed for rotor assemblies in electric motors and generator systems.
Manufactured from strontium ferrite material (commonly Y30 grade) through high-temperature sintering, providing stable magnetic performance, corrosion resistance, and cost-effective operation in industrial applications.
The arc geometry is designed for rotor ring construction, where multiple segments are assembled to form a complete magnetic circuit around the rotor core.

Technical Specifications

Parameter	Specification / Value
Product Name	Ferrite Rotor Arc Magnet (Ceramic Segment)
Dimensions	OD 80mm × ID 60mm × Thickness 20mm
Material Grade	Y30, Y35, C5, C8 (Optimized for Rotors)
Magnetization	Radial / Multi-pole / Custom Segmented
Tolerance	±0.1mm (High-precision grinding ±0.05mm)
Max Temp	250°C (482°F)
Customization	Custom Arc Degrees, Flux & OEM Supported

Key Features & Benefits

High Temperature Stability: Operates up to 250°C without demagnetization, ensuring stable motor performance.
Strict Tolerance Control: Precision grinding within 0.1mm ensures perfect dynamic balancing and low motor noise.
Cost-Effective and Durable: Naturally corrosion-resistant ferrite material requires no expensive coating, lowering bulk production costs.
Reliable B2B Supply: ISO9001 certified factory ensuring consistent quality and stable lead times for wholesale orders.

FAQ

Q: What types of electric motors are these ferrite rotor arc magnets best suited for?
A: These OD80xID60x20mm ferrite arc segments are universally designed for high-efficiency rotating machinery. They are most commonly used in Brushless DC (BLDC) motors, automotive starter motors, electronic power steering (EPS) systems, industrial servo drives, and home appliance compressor motors.

Q: My motor operates in a highly humid environment. Will these ferrite arc magnets rust over time?
A: No, they will not rust. Unlike Neodymium (NdFeB) magnets which oxidize easily and require expensive multi-layer coatings, permanent ferrite magnets are made of ceramic oxides. They are inherently corrosion-resistant and require no surface coating, making them perfect for damp or underwater applications.

Q: What industrial testing equipment do you use to ensure the quality of these rotor magnets?
A: Every production batch undergoes strict quality control. We utilize automatic magnetic flux meters, industrial projectors for precise dimension measurement, and high-low temperature testing chambers to verify that the magnetic loss and physical dimensions conform to your required technical standards before shipment.

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