10 Poles (5 Pole Pairs), High-Torque Sintered Neo We supply Custom Sintered Neodymium Rings with specialized 10-Pole Magnetization. Standard rings have a single North and South face. But we can offer ring magnets feature 5 alternating North/South pole pairs. Distributed around the circumference. This custom magnet design allows motor and sensor engineers to replace complex “Segmented Rotors” with a Single Solid Ring. This reduces assembly time, improves rotor balance. And eliminates the risk of individual segments detaching at high RPM. Why 10 Poles? Why choose a multi-pole ring instead of standard segments? 1. Assembly Efficiency (The “Glue” Killer): The Old Way: Gluing 10 separate arc magnets onto a hub requires precision jigs, messy adhesives, and hours of curing time. The Multi-Pole Way: You press-fit one 10-pole ring onto the shaft. You save 90% of your assembly labor costs. 2. Rotational Balance: The Problem: If you glue 10 segments and one is slightly heavier or glued 0.1mm off-center, the motor will vibrate at high speeds. The Solution: A solid sintered ring is perfectly concentric and balanced by nature. It ensures smooth, vibration-free rotation at high RPMs. 3. Sensor Resolution: The Application: Magnetic Encoders / Speed Sensors. The Logic: A standard 2-pole magnet gives 1 pulse per revolution. A 10-pole ring gives 5 pulses per revolution. This provides much higher resolution data for speed and position sensing. Magnetization Orientation: Two Styles Multi-pole rings can be magnetized in two different directions depending on your device. 1. Multi-Pole on OD (Outer Diameter): Configuration: The poles are located on the curved outside surface (N-S-N-S…). Use Case: Internal Rotors (where the coils are around the outside) or Speed Sensors. 2. Multi-Pole Axial (On the Face): Configuration: The poles are sectors on the flat circular face (like a sliced pizza). Use Case: Pancake Motors, Axial Flux Generators, or Magnetic Couplings. Manufacturing Advisory: Sintered vs. Bonded This is a common confusion in the market. Bonded Neo (Plastic-like): It is easy to make multi-pole, but it is weak (Low power). Sintered Neo (Metal): It is extremely strong (N52). But difficult to magnetize with multiple poles. Our Capability: We specialize in Sintered Multi-Pole. We build custom copper fixtures to blast the 10-pole pattern into solid, high-power Neodymium. This gives you the convenience of a ring with the power of N50/N52. Ideal Applications Brushless Motors (BLDC): High-torque rotors for drones and power tools. Magnetic Encoders: Position sensing for robotics arms. Magnetic Couplings: Non-contact torque transfer (10 poles grip better than 2). Stepper Motors: Precision stepping actuators. Ordering Guide: The Fixture Requirement Multi-pole magnetization requires a custom-built fixture (coil). 1). Dimensions: OD x ID x Thickness. 2). Pole Type: “Is this 10 Poles on the OD (Radial-ish) or 10 Poles on the Flat Face (Axial)?” 3). Skew: “Do the poles need to be skewed (angled) to reduce motor cogging?” (Advanced). 4). Quantity: – Because we must build a custom magnetizing fixture, there is usually a one-time tooling fee. – This makes 10-pole rings best suited for production runs of 500 pieces, rather than single prototypes.