Archive for magnetstek.com

Introduction: Humanoid Robots Are Leaving the Lab Humanoid robots have rapidly transitioned from research prototypes to pre-production systems poised for commercial deployment. Companies such as Tesla (Optimus), Figure AI, Agility Robotics, and several fast-moving Chinese robotics startups are no longer asking whether humanoid robots will be built at scale, but how to manufacture them reliably, […]

In modern medical devices, particularly implantable or portable infusion pumps, rotary blood pumps, insulin delivery systems, and microfluidic medication modules, precision and reliability are non-negotiable. Magnetic components lie at the center of these systems, enabling contactless torque transfer, hermetic sealing, reduced wear, and consistent long-term performance. This case study examines the engineering, development, and real-world […]

1. Why Porosity and Oxygen Content Matter More Than Most Engineers Realize Most engineering discussions about NdFeB magnets revolve around grade (N35–N55), operating temperature, geometry, or coatings. Rarely do buyers or designers ask the most fundamental question: what is the internal quality of the magnet itself? The real long-term reliability of an NdFeB magnet is […]

Neodymium-iron-boron (NdFeB) magnets are known as the strongest commercial permanent magnets available today. Their unbeatable energy density, high remanence, and compact size have made them essential in electric motors, robotics, medical devices, consumer electronics, automation equipment, and countless precision systems. But despite their extreme magnetic strength, NdFeB magnets are mechanically fragile. They are hard yet […]

Introduction Multi-pole magnet rings are essential components in today’s most advanced motion systems. They are used in high-speed motors, precision robotics, magnetic encoders, torque sensors, couplings, medical devices, and aerospace actuators. Their ability to generate a stable, repeatable multi-pole magnetic field in a compact rotating or linear configuration makes them indispensable for modern electromechanical design. […]

Permanent magnets—especially high-performance NdFeB (Neodymium-Iron-Boron)—are central to modern motors, robotics, automation, aerospace, renewable energy, medical devices, and sensing systems. However, sintered NdFeB suffers from inherent vulnerabilities: chemical reactivity, moisture sensitivity, structural brittleness, and weak grain-boundary strength. These weak points make protective coatings an essential part of any magnet engineering or application design. Coatings determine whether […]