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News & Events

Q4, 2018

45,000-square-foot building was put into construction for R&D, testing, manufacturing facility in Louisville KY.

September 17-18, 2019

Quadrant sponsored the 2019 CWIEME in Chicago, had a great success in presenting the coil winding and motor industries.

Q3, 2020

Quadrant Hunan plant is under construction, expanding our manufacturing capacity in Changde, China.

Response to COVID-19

Healthcare is always the priority in Quadrant’s vision.  We have activated regional crisis management teams in response to COVID-19 to monitor and respond to our business operations, our employees and communities. We are following guidance from the authority, and taking proactive steps to reduce the impacts of this pandemic to every one of us.


Elemental Iron (Fe) - Fundamental Magnetic Element

May 8th, 2015 | Kevin C. Kurtz 

Iron is one of the most common elements on earth and the foundation of permanent and soft magnetic materials. Quadrant is introducing this element for its expanded magnetic performance.

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FEA for Permanent Magnetic Circuit Simulations

April 23rd, 2018 | Kevin C. Kurtz 

Finite Element Analysis (FEA) and its simulation data play an essential rule for engineers in the product design phase. Quadrant speaks of FEA methodologies based on years of experiences and studies.

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Magnetic 3D Mapping Systems

June 13th, 2019 | Mike Guthrie

Quadrant has a wide range of magnetic testing capabilities for quality control, design and  evaluation at all manufacturing phases. Magnetic field mappers are used to measuring the field magnitude and direction… 

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Vibration / Haptic Motors for Industrial Applications

September 22nd, 2019 | Emily Zhang

Haptic technology is incorporated to provide us real interactions and complex user experiences in extensive applications. Quadrant shared the most modern applications in this article, from tactile feedback to visual devices.

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Designing & Manufacturing A Permanent Magnet Dipole Assembly

April 15th, 2020 | Michael Brand

Dipoles are usually assembled with a pair of magnets on a steel (yoke) frame across some distances of gaps. Many designs and applications require a specific high magnetic field strength within the gap…

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Thin Magnets in Smart Devices

June 27th, 2020 | Kevin C. Kurtz

Over the past decade, the pursuit of smaller devices becomes trendy in the market of consumer electronics. How to incorporate the up to date technology while designing and manufacturing for thin magnet and assemblies?

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Magnet Factors on Motor Designing

September 17th, 2020 | Mike Guthrie

Motor application performance is closely related to the material used. Raw materials with different properties determine the energy consumption and induction performance of the motor. Optimizing the use of materials while maintaining the magnetism of the motor is the key….

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Motor applications

Motor Applications of NdFeB Magnets

December 1st, 2020 | Mike Guthrie

The high performance and compact size of NdFeB allow it to replace nearly 99% of other magnet types in motor designs and can provide greater torque and withstand greater demagnetization force than any other motor at room temperature.

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Grain Boundary Diffusion- Overvie

An Overview of Grain Boundary Diffusion

May 20th, 2021 | Kevin Kurtz

Grain Boundary Diffusion (GBD) technology enables higher coercivities without reducing the remanence (Br) or energy product (BH)max. This process selectively positions the Dy/Tb heavy rare earth elements to increase their efficiency while reducing their cost. 

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Grain Boundary Diffusion- Overvie

Soft Magnetic Materials: Introduction and Applications

September 2nd, 2021 | Hui Meng

Soft magnetic materials indispensable almost for any machines involving the conversion between electrical energy and mechanical energy, they can be found in a broad range of applications.

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Press Releases

Design of Smart Magnetic Devices

Programmable magnetizing realized by the Magnetic Printer can produce complicated magnetic patterns and is suitable for the production and prototyping.  The Polymagnet features many functions such as spring, latch, align, snap, torque, hold, twist, or release in smart magnetic devices.

Computer simulation using the finite element method can determine the magnetic forces with various boundary conditions, but usually it is not convenient for industrial users. Based on the large database generated by using 3D computer simulation, Quadrant worked the Maxwell magnetic force equation that is user friendly to obtain the force by simply inputting the magnet’s Br, area and thickness.

Magnetic Force Equations based on Computer Simulation and the Effect of Load Line

Revealing the Mystery of the Cases where Magnetic Like Poles Attract Each Other

Localized demagnetization (LD) can cause unusual magnetic phenomenon, where magnetic like poles attract each other, and unlike poles repel one another when the Inflection Point (IP) on the force vs the gap curve for the magnetic like poles with unequal sizes.

When the LD is large enough, the polarity of a local region can be reversed, leading to an attraction between these two like poles in a small gap. 


With Quadrant’s talented experts and the use of finite element analysis (FEA) simulation technology, we developed this mobile APP to conveniently calculate the magnetic force F, the permeance coefficient Pc, and the demagnetizing factor N for magnet shapes in rectangular, axially magnetized ring, and axially magnetized cylinder.

The Magnetics Calculator can set the course of magnetic calculations at the stage of development process. 

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