TECHNICAL GUIDEGUIDE
Choosing the right neodymium magnet grade
Understand grade, force, temperature and geometry before you specify an NdFeB magnet.
Explore insightsRepresentative grade-family values, not measured data for a specific heat.
Materials that
move ideas.
Taiyo Koko, established in 1949, supplies precision-engineered molybdenum, vanadium, rare-earth, and ceramic raw materials essential for advanced applications and critical supply chains globally. We facilitate innovation through reliable material science and dedicated procurement support.
NdFeBMaterial platform
N35—N52Common grade range
08Explore sections
NdAtomic number 60
Eight areas of
magnet knowledge.
Explore taiyokoko.com
Explore the material, application, engineering, procurement and Malaysia context behind every magnet requirement. Each section is referenced by its own code, the way our internal sheets are.
01[TK-MAG-001]
Neodymium Magnets
NdFeB, grades, shapes, coatings and custom magnet requirements.
Explore section02[TK-APP-002]
Applications
EV, motors, wind turbines, robotics, sensors and industrial systems.
Explore section03[TK-MAT-003]
Materials
NdPr, dysprosium, terbium, ferrite, SmCo and Alnico.
Explore section04[TK-SCN-004]
Supply Chain
Mining, refining, manufacturing, regional supply and recycling.
Explore section05[TK-MKT-005]
Market
Price, demand, supply, forecasts and companies.
Explore section06[TK-ENG-006]
Engineering
Properties, grade selection, design, temperature and failure analysis.
Explore section07[TK-PRC-007]
Procurement
Suppliers, RFQ, OEM, custom requirements, MOQ and lead time.
Explore section08[TK-MYS-008]
Malaysia
Market context, industries and locations across Malaysia.
Explore sectionChoose the grade
around the job.
Grade at a glance
Grade is only a starting point. Geometry, temperature, coating and the magnetic circuit still determine the right production specification.
APPLICATIONSGUIDE
Designing with NdFeB: from prototype to production
A practical look at motors, sensors, robotics and other high-performance applications.
Explore insightsBUYER GUIDEGUIDE
What Malaysian buyers should specify in a magnet RFQ
The details that make a quotation, custom request or OEM enquiry more accurate.
Explore insightsFrom requirement to
clear specification.
About taiyokoko.com
Taiyo Koko is a technical magnet resource that helps engineers and manufacturers understand, specify and compare rare-earth magnets — from the properties of neodymium to finished NdFeB components.
NdFeBMaterial platform
NdAtomic number 60
08Explore sections
N35, N42 and N52 —
plus custom forms.
Business & products
Explore N35, N42 and N52 grades, custom forms and specification guidance for industrial, motor, robotics and OEM applications.
GRADE[N35]
General purpose
A dependable starting point for closures, fixtures, displays and everyday engineering.
Discuss N35GRADE[N42]
High performance
More force in a compact footprint for sensors, motors and precision assemblies.
Discuss N42GRADE[N52]
Maximum energy density
The strongest common grade range for compact, high-energy designs - always within the limits of the full magnetic circuit.
Discuss N52RANGE[TK-MAG-001]
Neodymium magnets
Disc, block, ring and custom forms for industrial and OEM use.
View magnet optionsGrade, coating and temperature —
we cover the specifics.
Quality & technical support
Grade is only the beginning. Coating, temperature, geometry, tolerance, magnetisation and assembly all influence performance. We can also coordinate product documentation, including the relevant safety data sheet.
GRADE
Energy family and its limits in your magnetic circuit.
COATING
Plating and epoxy against humidity and corrosion.
TEMPERATURE
Operating margin and irreversible demagnetisation risk.
Choose, design and
recycle responsibly.
Sustainability
Responsible sourcing includes choosing the right material, extending useful product life and planning how to handle or recycle neodymium magnets at end of life.
01[TK-MAT-003]
Choose the right material
Compare NdFeB with ferrite, SmCo and alnico before you commit.
Open guide02[TK-ENG-006]
Design for a longer life
Coating, temperature and tolerance protect performance in service.
Open guide03[TK-SCN-004]
Plan for end of life
Recover valuable rare earths from motors, drives and scrap.
Open guideAsk a magnet
question.
Need a quick answer?
Ask about N42 vs N52, an electric motor application or a custom magnet requirement. For pricing, drawings or an official quotation, contact the team directly.
Questions buyers
ask first.
Questions & answers
Short answers to the questions that come up before an engineer writes a specification.
What is neodymium?
Neodymium is a rare-earth element with the symbol Nd and atomic number 60. In engineering, it is best known as part of neodymium-iron-boron (NdFeB) permanent magnets.
What are neodymium magnets used for?
NdFeB magnets are used in electric motors, wind turbine generators, sensors, speakers, automation, robotics, fixtures and compact product assemblies where high magnetic strength matters.
What is the difference between N52 and N42 magnets?
N52 can provide a higher maximum energy product than N42, but the best choice also depends on size, temperature, coating, geometry and the required holding force.
Do magnets behave differently in hot or humid climates?
Heat lowers magnetic strength and humidity attacks coating and plating, so tropical conditions call for an adequate temperature margin and a corrosion-resistant coating such as nickel or epoxy.
Are neodymium magnets dangerous?
Strong magnets can cause pinch injuries, damage sensitive electronics and create a serious swallowing hazard. Review the product safety data and handling requirements before use.
How do I request a quotation?
Send dimensions, quantity, grade, coating, magnetisation direction and application. For OEM work, include a drawing or specification so the requirement is unambiguous.