Frequently Asked Questions

We manufacture sintered NdFeB grades from N35 through N52, across four temperature ratings:

Grade datasheets with full BH curve data are available upon request. Submit an inquiry with your application temperature and we will recommend the optimal grade.

We offer two tolerance tiers depending on application requirements:

CMM dimensional reports are included with every shipment. CPK tracking is available across production runs for quality engineers requiring statistical process data.

We support all standard magnetization configurations and can produce custom fixtures for non-standard requirements:

• Axial -- through-thickness, along the axis of symmetry
• Radial -- outward from center axis; common in ring magnets
• Multi-pole -- alternating poles on a single magnet; for brushless motor rotors
• Custom fixtures -- angled or Halbach-adjacent configurations by arrangement

Specify magnetization direction in your inquiry. For complex patterns, share a drawing or STEP file and our technical team will confirm feasibility within 24 hours.

Standard coatings are listed below. Salt spray test performance data are included with every shipment and available in our technical documentation.

Specify your coating requirement and operating environment in the inquiry form. Full salt spray test data are available for QA review prior to order placement.

We achieve high-coercivity performance through two Dy/Tb-free technologies:

Traders and sourcing agents placing mixed orders can combine line items to reach MOQ per grade. Contact us with consolidated requirements for a single quotation.

Lead time is confirmed at order placement -- not quoted as an estimate subject to change:

Production progress updates are provided proactively. You will not need to chase status.

We invoice in USD or EUR. Payment is processed by T/T (bank transfer):

Price validity and any escalation terms are stated in the quotation. Rare earth price changes will not be applied to confirmed orders without prior written agreement.

Quotations include itemized pricing, confirmed lead time, and applicable certifications. For technical inquiries (grade selection, BH curve analysis), our engineering team responds within the same window.

To accelerate your quotation: include motor type, operating temperature, current grade, required quantity, and target delivery date in your submission.

The following certifications are current and on file. Full certificate copies are provided to customers upon request -- no audit delay:

The following document package ships with every order -- unprompted. You do not need to request them retrospectively:

• Magnetic Performance Report

  Br, Hcj, (BH)max values per batch; supports working point validation
• CMM Dimensional Report

  Coordinate measurement machine output; covers all critical dimensions
• Salt Spray Test Report

  Coating corrosion resistance data; traceable to production batch for field failure investigation
• COA / COC

  Certificate of Analysis and Certificate of Conformance

Additional region-specific documentation (origin certificates, RoHS declarations) available upon request without extended lead time.

Yes. CPK tracking is available across production runs and can be provided to your quality team as part of the incoming inspection package. This is specifically designed to address the batch-to-batch Br variation problem that causes inconsistent motor torque output.

Batch records are retained and traceable, enabling field failure investigation if a performance issue arises after deployment. Contact our technical support to discuss your specific CPK threshold requirements before order placement.

IATF 16949 documentation is available on a project basis. This applies to automotive customers with formal supplier qualification requirements, including tier-1 auto suppliers and EV drivetrain manufacturers.

To initiate IATF 16949 documentation for your project, include your automotive application details and documentation requirements in your inquiry. Our team will confirm scope and timeline alongside your quotation.

Dysprosium (Dy) and Terbium (Tb) are classified as dual-use items under China's export control regulations. Magnets containing these elements require a dual-use item permit issued by China's Ministry of Commerce before they can be exported.

For procurement managers and traders managing delivery commitments to end buyers, the 2-month licensing risk from Dy/Tb-containing suppliers is a direct operational liability. Our Dy/Tb-free grades eliminate this variable.

Performance is equivalent within the grades we produce via Dy/Tb-free routes. The key constraint is the maximum achievable grade:

Submit your current grade, operating temperature, and part geometry in your inquiry. Our engineering team will assess whether a Dy/Tb-free route is technically feasible for your application and provide BH curve data for working point validation.

We supply motor OEMs, industrial automation integrators, EV component manufacturers, and trading companies across the following regions:

Region-specific certificates and compliance documentation (RoHS, REACH, origin certificates) are provided without extended lead time. In-person meetings and trade show participation are available for customers requiring face-to-face qualification.

Whether re-qualification is required depends on your motor design and the working point margin you currently operate with. This is a technical question we can help answer before you commit to any order.

Submit your current grade, magnet geometry, operating temperature, and motor type. Our engineering team will provide a grade recommendation with temperature coefficient data and, where relevant, working point analysis against your existing BH curve. This supports your internal re-qualification process without requiring a trial order first.