---
title: "Permanent Magnet Assembly"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:PERMANENT_MAGNET_ASSEMBLY"
  data_integrity_hash: "e5e4560d33245397f0f5e6cc29441009"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:PERMANENT_MAGNET_ASSEMBLY"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/permanent-magnet-assembly.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/permanent-magnet-assembly"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-2.0 Tesla magnetic flux density at 20-80°C ambient temperature"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 310
    unit: "°C"
    consequence: "Thermal demagnetization due to exceeding Curie temperature, where thermal energy overcomes magnetic domain alignment energy (exchange interaction energy ~10^-21 J/atom)"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Eddy current heating from AC magnetic fields at frequencies &gt;100 Hz"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Laminated rare-earth magnet construction with 0.5 mm silicon steel laminations to reduce eddy currents by 85%"
  - node_2:
      trigger: "Mechanical shock exceeding 500 g acceleration for 2 ms duration"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Epoxy encapsulation with 3 mm thickness and shock-absorbing mounting using 70 durometer silicone isolators"
bom_nodes:
  permanent-magnet-blocks:
    type: "component"
    urn: "URN:CNFX:ME:PERMANENT_MAGNET_BLOCKS"
    interface_type: "physical-logic-coupled"
  magnetic-yokeframe:
    type: "component"
    urn: "URN:CNFX:ME:MAGNETIC_YOKEFRAME"
    interface_type: "physical-logic-coupled"
  pole-pieces:
    type: "component"
    urn: "URN:CNFX:ME:POLE_PIECES"
    interface_type: "physical-logic-coupled"
  mounting-hardware:
    type: "component"
    urn: "URN:CNFX:ME:MOUNTING_HARDWARE"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/permanent-magnet-assembly.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "60c08d180b72ee3eeef627b716a650951b9a110f3801f2b6439180929555aed4"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Permanent Magnet Assembly

## 1. Technical Definition
A magnetic field generation component within electromagnetic vibration testing equipment

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-2.0 Tesla magnetic flux density at 20-80°C ambient temperature**. Failure boundary: **Curie temperature of 310°C for NdFeB magnets, causing irreversible demagnetization at 350°C**, Mechanism: **Thermal demagnetization due to exceeding Curie temperature, where thermal energy overcomes magnetic domain alignment energy (exchange interaction energy ~10^-21 J/atom)**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Eddy current heating from AC magnetic fields at frequencies &gt;100 Hz | 8 | Progressive thermal demagnetization reducing magnetic flux by 15% per 50°C above 150°C | Laminated rare-earth magnet construction with 0.5 mm silicon steel laminations to reduce eddy currents by 85% |
| Mechanical shock exceeding 500 g acceleration for 2 ms duration | 8 | Crack propagation through brittle NdFeB material leading to magnetic circuit disruption | Epoxy encapsulation with 3 mm thickness and shock-absorbing mounting using 70 durometer silicone isolators |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | mm | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Electromagnetic Vibration Test System**, **Power Amplifier Unit**, **Cooling System**  
**Downstream Applications**: Automotive Components, Aerospace Structures, Electronic Devices  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What materials are used in permanent magnet assemblies for vibration testing equipment?
**A**: Our assemblies use premium magnetic materials including Neodymium Iron Boron (NdFeB), Samarium Cobalt (SmCo), Alnico, and Ferrite, selected based on specific temperature, strength, and corrosion resistance requirements.

### Q: What components are included in a permanent magnet assembly BOM?
**A**: The bill of materials includes Magnetic Yoke/Frame for structural support, Mounting Hardware for secure installation, Permanent Magnet Blocks as the core magnetic elements, and Pole Pieces to shape and direct the magnetic field.

### Q: How do permanent magnet assemblies function in electromagnetic vibration testing equipment?
**A**: These assemblies generate stable, consistent magnetic fields that interact with electromagnetic coils to produce controlled vibrations, enabling precise testing of materials, components, and systems for durability and performance validation.

## 6. Manufacturing Compliance
- ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Permanent Magnet Assembly](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/permanent-magnet-assembly)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **4** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: PERMANENT_MAGNET_ASSEMBLY | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 6558783a
