OSENC manufactures custom Ni-Cu-Ni coated neodymium magnets with controlled plating thickness, finished tolerances, magnet grade, magnetization and geometry to your drawing. Our standard total Ni-Cu-Ni thickness is 15–21 μm, with precision finished tolerances down to ±0.05 mm for approved geometries.
OSENC uses the stack NdFeB + Ni + Cu + Ni. The first nickel layer supports bonding and protection, copper forms the middle barrier, and the outer nickel layer provides the final smooth silver / semi-bright metallic surface. We control total Ni-Cu-Ni thickness on the product specification and define individual layer data only when the process documentation requires it.
| 항목 | OSENC Specification | Purchasing Meaning |
|---|---|---|
| 구조 | NdFeB + Ni + Cu + Ni | Multilayer metallic protection for sintered NdFeB. |
| Total Thickness | 15 μm minimum / 15–21 μm standard / 30 μm upper limit | Finished dimensions are controlled after plating. |
| Standard Finish | Smooth silver / semi-bright silver metallic finish | Bright mirror, satin or matte require a separate finish specification. |
| 완성품 공차 | 표준 ±0.10 mm / 정밀 ±0.05 mm | Applied to suitable plating-finished geometries. |
| Corrosion Positioning | Indoor / controlled humidity / normal industrial handling | More aggressive environments move to another protection system. |
We treat coating, magnetic performance and finished dimensions as one manufactured part, so the quotation reflects the real assembly requirement rather than a generic nickel finish.
OSENC manufactures nickel coated disc, cylinder, block, ring and countersunk magnets across micro, standard and large custom ranges. The final drawing controls plating access, edge condition, hole geometry, tolerance and magnetization.
| 형상 | Capability |
|---|---|
| Disc / Cylinder | Micro down to D0.2 × T0.2 mm; regular matrix about Ø5 × 1 to Ø50 × 30 mm; larger custom parts reviewed separately. |
| 블록 | L 1–254 mm / W 0.5–127 mm / H 0.3–120 mm. |
| 링 | OD 1.5–300 mm / ID 0.4–250 mm / T 0.3–120 mm. |
| 카운터싱크 자석 | Disc / block body envelope with hole diameter, major diameter, angle and position defined separately. |
Selected micro parts can reach the 0.2 mm class, including disc sizes around D0.2 × T0.2 mm and micro block sizes around 0.2 × 0.2 × 0.2 mm. Precision tolerance in the ±0.005–0.020 mm range is reviewed only for selected micro geometries where grinding, plating build and inspection capability support the drawing.
OSENC Ni-Cu-Ni products cover N35–N56 plus M, H, SH, UH, EH and AH high-temperature families. We select the grade from the required magnetic output, coercivity, geometry and operating temperature.
OSENC supports axial, diametrical, radial, multipole and custom magnetization. Disc / ring / cylinder parts can use axial or diametrical directions, while blocks can be magnetized through thickness, length or width.
OSENC machines through holes and countersinks before Ni-Cu-Ni plating so the hole wall, countersunk face and external surfaces enter the plating process together. Finished magnets are not drilled afterward because post-machining breaks the coating and exposes NdFeB.
For deep or blind holes, OSENC defines the required plated depth and acceptance criteria from the actual hole diameter, depth and geometry. The drawing must identify the surfaces that require verified coating coverage.
We review fragile corners, countersunk margins and thin sections before plating so protected edges are not designed around avoidable crack or handling risks.
We machine holes before plating and do not drill finished Ni-Cu-Ni magnets afterward, preventing exposed NdFeB at the new cut surface.
We define plated depth and inspection requirements for deep or blind holes instead of treating a recessed surface like an open face.
Finished surfaces and packaging protection are checked before shipment to reduce coating damage during transport and assembly.
Our inspection plan focuses on the finished magnet that reaches your assembly, not only the bare NdFeB core.
OSENC selects the coating from the actual environment, surface behavior and dimensional requirement.
| 코팅 | OSENC Uses It When | Main Purchasing Check |
|---|---|---|
| Nickel / Ni-Cu-Ni | General-purpose metallic finish, controlled indoor use and normal industrial handling. | Stack, total thickness, geometry, finished tolerance and exposure. |
| 아연 | Economical mild-environment protection is the priority. | Passivation, appearance and corrosion requirement. |
| 에폭시 | A polymer barrier is preferred for humid or more corrosion-sensitive duty. | Edge damage, coating system, finished dimensions and test condition. |
| PTFE | Low friction, non-stick behavior or chemical-surface performance drives the design. | PTFE construction, dimensional build and chemical exposure. |
OSENC는 총 Ni-Cu-Ni 두께를 최소 15 μm, 표준 15–21 μm로 관리하며, 해당 페이지의 상한은 30 μm입니다. 개별 Ni / Cu / Ni 층 두께는 프로젝트 근거상 필요한 경우 공정 사양서에 규정합니다.
OSENC는 완성 부품의 표준 치수 공차로 ±0.10 mm를 적용하며, 적합한 형상에는 ±0.05 mm를 정밀 목표로 적용합니다. 일부 선정된 미세 정밀 부품은 ±0.005–0.020 mm 범위에서 검토할 수 있습니다.
예. OSENC는 Ni-Cu-Ni 도금 전에 관통 구멍과 카운터싱크를 가공하여 구멍 벽면, 카운터싱크 면 및 외부 표면이 함께 도금 공정에 들어가도록 합니다. 완성된 자석은 이후에 다시 드릴 가공하지 않습니다.
OSENC은 마이크로, 표준 및 대형 맞춤 범위 전반에서 디스크, 실린더, 블록, 링 및 카운터싱크 형상을 지원합니다. 디스크는 D0.2 × T0.2 mm 초소형 부품까지, 블록은 더 큰 맞춤형 블록 외형까지, 링은 외경 300 mm / 내경 250 mm / 두께 120 mm까지 대응하며, 형상 및 코팅 검토를 전제로 합니다.
OSENC uses Ni-Cu-Ni for general industrial, indoor and controlled-humidity applications. For long-term immersion, seawater, continuous salt exposure, permanently wet assemblies or aggressive chemicals, we move the project to epoxy, PTFE, Parylene, encapsulation or another dedicated corrosion-protection system.
MOQ 1 is available for custom sampling. Send the drawing, grade or magnetic target, magnetization, Ni-Cu-Ni requirement, operating environment and inspection needs.
Send the finished dimensions, magnetic target, magnetization, Ni-Cu-Ni requirement, operating environment, quantity and inspection needs. OSENC will return the coating, grade, tolerance and inspection proposal needed to move the project into sampling.
이번 달 최신 가격 및 사양 받기
빠른 견적 받기(가격 + 리드 타임)
최신 가격, 사양, MOQ 및 배송 옵션을 받아보십시오. 스팸 없이 필요한 정보만 보내드리며, 3-6시간 이내에 답변드립니다.