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NdFeB knowledge

Identify, compare and accurately describe neodymium magnets for sale

Information about materials, applications, magnet quantities and sources helps you describe a lot accurately.

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Loose rectangular neodymium magnetsClearly identified magnet shapesRecord block, ring, disc and segment magnets separately.Disc-shaped neodymium magnetsQuantity & conditionDocument the net weight, coating and contaminants.Removed HDD magnet assemblyTechnical applicationsThe original application and nameplate help with the initial assessment.Electric motors as a source of NdFeB magnetsIndustrial applicationsIdentify and describe motors, generators and production lots.

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Data table · Robotics

Industrial robots — specific models and published motor information

Generic factors of 8.5 and 15 kg must not be applied to model rows. For all current models, the total NdFeB mass remains unpublished.

10 Data rows

Sources reviewed as at 30/08/2026. Time-sensitive product, market and legal information should be checked directly against the source before a specific decision is made.

ManufacturerModelDocument/model yearAxesPayload (kg)Robot mass (kg)Drive/servo motor evidencePM/NdFeB evidenceNdFeB kg per modelQuantity basisPrimary sourceEvidence statusData gap / note
KUKAKR 6 R900-220246655KR AGILUS; custom Kollmorgen synchronous servo motorsPM attribution only at product-series/case-study level—not publishedOpen source ↗D-GNo current model-specific BOM or magnet material has been published.
KUKAKR 300 R2700-2202263001,101Magnet material not specified for the axis drivesPM/NdFeB not confirmed—not publishedOpen source ↗D-GRobot data documented; magnet data unavailable.
ABBIRB 4600-60/2.052009660—six axis motors A1–A6PM/NdFeB not specified—not publishedOpen source ↗D-GThe ABB DSM NdFeB motors cannot validly be attributed to this robot.
ABBIRB 4600-40/2.55—640—six axis motors A1–A6PM/NdFeB not specified—not publishedOpen source ↗D-GThe model is documented; material data are unavailable.
FANUCCRX-10iA—61040six servo-driven axesFANUC-wide PM/RE evidence; no model-specific BOM—not publishedOpen source ↗D-GModel axes H; RE-magnet attribution only at brand level.
FANUCR-2000iC/210F—62101,090six servo axesFANUC-wide PM/RE evidence; no model-specific BOM—not publishedOpen source ↗D-GCurrent webpage lists 1,090 kg/3 kW; older datasheet lists 1,370 kg/2.5 kW.
KawasakiBX200L20116200890six axesno model-specific PM/NdFeB evidence—not publishedOpen source ↗D-GRobot data documented; magnet data unavailable.
KawasakiRS03N20216320synchronous brushless AC servo motorPM material not specified—not publishedOpen source ↗D-G‘Brushless’ alone does not establish the use of NdFeB.
KawasakiKF121J-D202165140brushless AC servo motorsPM/NdFeB not specified—not publishedOpen source ↗D-GNo magnet-mass inference can be made.
Unimation / WestinghousePUMA 760—610290six permanent-magnet servo motorsPM confirmed; NdFeB not confirmed—not publishedOpen source ↗A-HHistorical government report; magnet alloy and mass not disclosed.

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