Custom NdFeB Shape

Custom Triangular Neodymium Magnets

OSENC manufactures custom triangular neodymium magnets to your drawing, including standard triangles, countersunk designs and drawing-defined irregular geometries. Our published size envelope covers 1–200 mm length, 0.5–100 mm width and 0.3–120 mm thickness, with N35–N55 plus M, H, SH, EH and AH grade families and nickel, zinc or epoxy coating options.

OSENC will confirm geometry, grade, magnetization, coating, critical tolerances and the quotation basis from your drawing.

Length1–200 mm
Width0.5–100 mm
Height / Thickness0.3–120 mm
Smallest Listed Triangle1 × 1 × 0.3 mm
Triangular neodymium magnet with countersunk holes
Drawing Definition

Define the Triangle Before We Lock the Magnet Specification

OSENC quotes triangular magnets from a drawing-defined geometry rather than a generic L × W × H description. For quotation and production definition, specify side lengths A, B and C or the controlling angles, plus thickness T.

Add corner radii or chamfers, hole geometry, countersink details, coating, tolerance and magnetization direction. For curved or segment-derived triangular parts, include the controlling radius, centerline and included angle.

Use the published size range as the manufacturing envelope. OSENC confirms the final producibility against the complete triangle geometry, acute corners, thin sections, hole position, coating and tolerance requirements.
Close-up a triangular neodymium magnet
Available Dimensions

Triangular Neodymium Magnet Size Range

Parameter OSENC Published Range What We Need on the Drawing
Length envelope 1–200 mm Identify the controlling side or overall projected length.
Width envelope 0.5–100 mm Identify the corresponding side or projected width.
Height / thickness 0.3–120 mm Show whether thickness is also the intended pole-to-pole direction.
Smallest listed simplified triangle 1 × 1 × 0.3 mm Send the exact side lengths, angles and thickness for production confirmation.

For acute corners, thin sections or dimensions near the envelope limits, OSENC confirms the complete geometry instead of reducing the decision to one dimension.

Engineering Screening

Can OSENC Make Your Triangle?

Your Design OSENC Engineering Response
Standard triangle with simple thickness Quote from drawing
Triangle with countersunk holes Supported from the approved drawing; define hole and countersink geometry.
Acute corners Geometry confirmation required; corner angle, local thickness and edge condition are controlled together.
Thin section close to a hole Manufacturability confirmation required; define hole position, remaining wall and thickness.
Curved triangular boundary Send radius + centerline + included angle.
Special pole orientation Mark the required N/S pole faces on the drawing.
Tight dimensional tolerance Specify the tolerance; OSENC confirms the achievable production target against the part geometry.
Gauss, flux or pull-force target Provide the measurement conditions so the target can be defined against the real magnetic circuit.

Have a Triangle Drawing Ready?

Send the geometry, tolerance, coating and pole orientation. OSENC will confirm manufacturability and build the quotation from the approved geometry.

Check Your Triangle Geometry
Why OSENC

What OSENC Controls on Custom Triangle Magnet Projects

OSENC turns a drawing-defined triangle into a controlled production specification. The objective is not simply to machine three sides; it is to make geometry, magnetization, coating and inspection work together in the finished OEM assembly.

Drawing-Controlled Geometry

Side lengths, angles, thickness, holes, countersinks, chamfers and curved features are locked from the approved drawing before production.

Pole Direction Locked Before Production

The required N/S pole faces and material orientation are defined against the real triangle geometry before magnetization.

Finished Fit After Coating

Fit-critical dimensions are controlled against the finished coated part when coating build affects the customer assembly.

Geometry Risks Resolved Before Sample Release

Acute corners, countersinks, thin walls and hole-to-edge relationships are addressed before the sample specification is released.

Neodymium magnet product shapes from OSENC
Custom Geometry

What OSENC Defines Before Manufacturing a Triangular Magnet

Feature OSENC Production Control
Triangle geometrySide lengths, internal angles and thickness
Sharp cornersCorner geometry, local section thickness and chipping risk
Through holesDiameter, position and distance from edges
CountersinksHole geometry, screw interface and remaining wall thickness
Chamfers / radiiDrawing-defined edge treatment
Curved boundariesRadius, centerline and included angle
MagnetizationRequired N/S pole faces and material orientation
CoatingEnvironment, coating route and fit-sensitive dimensions
Tolerance

Tolerance Control for Custom Triangular Magnets

OSENC controls dimensional tolerances against triangle size, thickness, corner geometry and secondary features. Specify the required tolerance on your drawing, and we confirm the achievable production target for that part before the specification is released.

When angle tolerance, flatness, parallelism or hole position affects assembly fit, place the requirement directly on the drawing so it becomes part of the controlled project specification.

Grade Selection

N35–N55 and High-Coercivity Grade Families

OSENC supplies triangular neodymium magnets in N35–N55 grade ranges, together with M, H, SH, EH and AH grade families for projects with higher coercivity or temperature-related requirements.

Magnetic Grade

We select the starting grade against the required magnetic output, available magnet volume, working gap and surrounding magnetic circuit.

Temperature Requirement

M, H, SH, EH and AH grade families provide higher-coercivity options, but finished-part temperature performance still depends on geometry and the magnetic circuit.

Material Data

Project Br, Hcb, Hcj and (BH)max values should be controlled by the approved material specification or certificate used for the order.

Magnetization

Define the Pole Faces on the Drawing

OSENC defines triangular magnetization by pole orientation, not by forcing disc-magnet terminology onto an irregular shape. Practical project directions include through-thickness magnetization, in-plane magnetization along a specified orientation and other drawing-defined custom orientations.

Sintered NdFeB is anisotropic, so the required field direction must be compatible with the material orientation and final geometry. Complex multipole patterns require dedicated magnetic design and magnetizing fixtures and are defined project by project.

If your project has a field, flux or holding-force target, include the measurement location, air gap, steel counterpart and test direction. That turns the target into an engineering requirement instead of an isolated number.

OSENC neodymium magnet quality inspection

Need OSENC to Define the Grade or Magnetization?

Send your working temperature, assembly space, air gap and target magnetic result. OSENC will use them to define the starting grade, magnetization direction and magnetic configuration.

Send Your Magnetic Requirements
Coating

Coating Options for Triangular Neodymium Magnets

OSENC offers nickel, zinc and epoxy coating routes for triangular neodymium magnets. We match the coating discussion to corrosion exposure, handling, surface requirements and dimensional sensitivity.

Coating Best Used When What to Include in the RFQ
Nickel / Ni-Cu-Ni General indoor assemblies and standard handling environments Tell us if coating build affects assembly fit or a finished dimension.
Zinc Projects requiring a zinc finish Define environmental exposure and any appearance requirement.
Epoxy Projects requiring an epoxy-coated surface or additional corrosion protection Specify environment, color if required and dimensional sensitivity.
Application Fit

When a Triangular Neodymium Magnet Is the Right Choice

OSENC uses triangular geometry when the magnet must fit an angular cavity, follow a non-rectangular mounting interface, place magnetic material close to an angled boundary or integrate mounting features into a triangular footprint.

Angular Assembly Spaces

Use a triangular magnet when a block or disc wastes space or interferes with surrounding components.

Sensors & Positioning

Useful when pole position and the mechanical envelope must be controlled together inside a compact layout.

Countersunk Mounting

Suitable for screw-mounted designs that require a triangular footprint and defined hole geometry.

Custom Magnetic Assemblies

For drawing-defined assemblies where geometry, pole orientation and neighboring steel must be engineered together.

Project Workflow

From Triangle Drawing to Production

Send Your Drawing

Provide geometry, dimensions, tolerance, grade or application target, coating, magnetization and quantity.

Manufacturability Confirmation

OSENC confirms edge geometry, holes, countersinks, coating requirements, pole orientation and operating conditions before the sample specification is released.

Quotation & Sample Plan

The quotation and sample plan are built around the approved specification instead of a generic triangle description.

Sample Approval

Dimensions, coating, magnetization direction and project-specific magnetic requirements are checked before volume production.

Production & Inspection

Production follows the approved drawing and the project inspection requirements.

OSENC dimensional inspection of neodymium magnets
Quality Control

Quality Control for Custom Triangular Magnets

OSENC controls custom triangular magnets against the approved drawing and project requirements. The inspection focus follows the characteristics that affect fit, function and magnetic orientation.

Dimensions

Critical dimensions and project tolerances are checked against the approved drawing.

Coating

Coating appearance and project-defined coating requirements are inspected as part of the approved specification.

Magnetization

Pole orientation is checked against the approved magnetic direction before packing.

When the specification includes project-specific magnetic performance requirements, the acceptance method and test conditions should be defined with the order.

Packaging

Protect Brittle NdFeB Parts During Handling and Shipment

Sintered neodymium magnets are hard and brittle. Triangular corners, thin sections and countersunk areas can be more vulnerable to chipping if magnetized parts snap together.

OSENC selects packaging according to magnet size, magnetic strength, quantity and shipping method. Separation and protective packing help reduce uncontrolled attraction, corner impact, chipping and magnetic interference during transport.

OSENC protective packaging for neodymium magnets
RFQ Checklist

Send These Inputs for a Faster Triangular Magnet Quote

Geometry

A/B/C side lengths or controlling angles, thickness T, corner radius or chamfer, hole diameter, countersink, slots, grooves, curved features and drawing revision.

Magnet Specification

Grade if known, coating, required pole faces or magnetization direction, dimensional tolerance and any critical finished-size requirement.

Application Conditions

Quantity, operating temperature, corrosion exposure, assembly material, air gap and any field, flux or holding-force target with its test conditions.

Frequently Asked Questions

Triangular Neodymium Magnet FAQ

What size triangular neodymium magnets can OSENC supply?

The current published envelope is 1–200 mm in length, 0.5–100 mm in width and 0.3–120 mm in height or thickness. The smallest listed simplified triangle is 1 × 1 × 0.3 mm. OSENC confirms the exact geometry against the drawing.

Can triangular magnets have countersunk holes?

Yes. OSENC manufactures countersunk triangular designs from the approved drawing. Define hole diameter, countersink geometry, position, edge relationship and thickness so manufacturability can be confirmed before quotation.

What should I include in a triangular magnet drawing?

Include side lengths A/B/C or the controlling angles, thickness T, holes or countersinks, chamfers or radii, tolerances, coating, required pole faces and any critical assembly dimensions.

What tolerance should I specify?

Specify the tolerance your assembly actually needs. Published NdFeB machining references commonly cite about ±0.10 mm for general machining and around ±0.05 mm for selected tighter geometries, but OSENC confirms the achievable production target against your drawing.

What magnetization directions are available?

Through-thickness, specified in-plane and drawing-defined custom orientations can be manufactured when they are compatible with the material orientation and geometry. Mark the required north and south pole faces on the drawing. Complex multipole designs require project-specific magnetic design and fixture confirmation.

Which coatings are available?

OSENC offers nickel, zinc and epoxy coating routes for triangular neodymium magnets. If coating thickness or coating stack affects fit or corrosion performance, include that requirement in the RFQ.

Can OSENC define the magnet if I do not know the grade?

Yes. Send the application, operating temperature, available space, air gap, surrounding steel and target magnetic result. OSENC uses those inputs to define the starting grade and magnetic configuration.

Custom Quote

Send Your Triangular Magnet Drawing to OSENC

Include side lengths or angles, thickness, holes or countersinks, grade if known, coating, pole orientation, tolerance, quantity and operating conditions. OSENC will confirm the real geometry and build the quotation around the approved specification.

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