A custom magnetic assembly is easier to evaluate when a request for quotation (RFQ) explains the job the part must do—not only the magnet material or grade. Shape, mounting interfaces, operating conditions, and acceptance requirements can all affect a design discussion. Nibboh describes its magnetic assemblies as customizable to project requirements. This checklist helps engineering and procurement teams prepare a clear first brief.
1. Explain the assembly’s function
Describe where the assembly sits in the equipment and what it must accomplish: hold, position, sense, separate, couple, or perform another defined task. Identify the parts or materials it interacts with, the direction of movement, and the consequence of a misfit. A simple application sketch often communicates more than a material name alone.
2. Share the complete envelope and mounting details
Attach a dimensioned drawing when available. Include the overall envelope, critical dimensions, datums, hole or slot locations, mating surfaces, and installation clearances. Mark flexible dimensions as such and identify critical ones with the intended measurement method. A 3D model can clarify geometry; state which released drawing or model controls if they differ.
3. Describe the operating environment
State the conditions the part will encounter: temperature range, moisture, dust, cleaning chemicals, vibration, outdoor exposure, or contact with other materials. Do not assume a coating or enclosure is suitable because it resembles a previous design. Flag regulated applications and list any material or documentation requirements your organization must meet.
4. Define magnetic requirements in measurable terms
If your team has specified magnet material, grade, pole pattern, magnetization direction, or a target magnetic value, include it and cite the source specification. For a force or field requirement, state the test method and setup—measurement location, gap, mating material, and orientation—so results can be interpreted consistently. If values are not established, mark them open for engineering review rather than guessing.
5. Identify materials and surface requirements
List required housing, carrier, adhesive, or contact materials, plus finish or surface-treatment requirements. Separate must-haves from preferences and cite the governing document when applicable. Nibboh’s factory page lists engineering, machining, coating, and magnetizing among its in-house processes and notes that custom shapes, grades, and surface treatments are available; confirm feasibility for the specific design.
6. Show the interfaces around the component
Include mating parts, nearby fasteners, cable or sensor routing, and keep-out zones that affect installation. Clarify whether the assembly is supplied as a finished component or integrated into a larger unit by your team. Photos can help, but label them as references and mark the view direction so they do not conflict with the released drawing.
7. State expected quantities and project stage
Give prototype and pilot quantities, plus expected production demand if known. Note whether the request is for feasibility review, a replacement part, or a new design. If timing matters, provide the required date and the event it supports; ask the supplier to confirm a feasible schedule rather than treating a target date as an accepted commitment.
8. Write down inspection and acceptance criteria
Identify characteristics that must be checked before approval, such as named dimensions, material, surface condition, polarity, or a magnetic measurement under a defined method. State which records or reports you require and whether they must accompany each lot. Avoid vague terms such as “strong,” “high quality,” or “standard tolerance” unless linked to a measurable requirement.
9. Control drawings, revisions, and open questions
Put a revision and date on every drawing, model, and specification. List unresolved items separately and identify who can approve a change. If you send an older part or sample as reference, say which features are representative and which must change. This keeps a reference sample from being mistaken for the current design intent.
Build a concise RFQ package
A useful package brings together the application description, latest drawing and model, operating conditions, magnetic and mechanical requirements, expected quantities, and acceptance criteria. Mark uncertain items “to be confirmed” instead of filling gaps with assumptions. Have engineering and procurement review the same revision before release.
Nibboh’s magnetic component range includes products such as magnetic grates and magnetic tube bars, and the company notes that customized assemblies can be designed for project requirements. To discuss a specific application, use the contact page and include relevant drawings and specifications.