---
title: "Door"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:DOOR"
  data_integrity_hash: "7224adf43c84f87930ece78f1dd8bd9b"
  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:DOOR"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/door.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/door"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-150 N·m torque on hinges, 0-1000 N lateral force on latch mechanism, -40°C to 85°C ambient temperature"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 000
    unit: "cycles"
    consequence: "Hinge failure due to low-cycle fatigue at stress concentration points (σ_max = 350 MPa exceeding endurance limit of 275 MPa for 304 stainless steel), latch failure from plastic deformation beyond yield strength (σ_y = 290 MPa for cold-rolled steel), seal degradation via Arrhenius accelerated aging (E_a = 85 kJ/mol for EPDM rubber)"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Hinge pin wear exceeding 0.5 mm clearance due to abrasive particles (ISO 12103-1 A4 fine test dust)"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integrate labyrinth seal with 0.1 mm clearance on hinge assembly, specify SAE 30 oil lubrication at 0.1 mL/cycle"
  - node_2:
      trigger: "Thermal expansion differential of 0.3 mm between aluminum door frame (α = 23.1×10⁻⁶/°C) and steel panel (α = 12×10⁻⁶/°C) at ΔT = 60°C"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Implement bi-metallic thermal compensation strip with 0.15 mm/k expansion differential, specify 1.5 mm operational clearance at 20°C ambient"
bom_nodes:
  hinge:
    type: "component"
    urn: "URN:CNFX:ME:HINGE"
    interface_type: "physical-logic-coupled"
  handle:
    type: "component"
    urn: "URN:CNFX:ME:HANDLE"
    interface_type: "physical-logic-coupled"
  locking-mechanism:
    type: "part"
    urn: "URN:CNFX:ME:LOCKING_MECHANISM"
    interface_type: "physical-logic-coupled"
  sealgasket:
    type: "component"
    urn: "URN:CNFX:ME:SEALGASKET"
    interface_type: "physical-logic-coupled"
  viewing-window:
    type: "component"
    urn: "URN:CNFX:ME:VIEWING_WINDOW"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
  - standard: "EN 14351-1:2006 - WINDOWS AND DOORS - PRODUCT STANDARD"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/door.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "913c2898f83990e239cb6cbf2520887dcf5add67ac26fb902a9ba4bd52b5ecb7"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Door

## 1. Technical Definition
A movable barrier that provides access to the interior of a panel enclosure while protecting internal components.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-150 N·m torque on hinges, 0-1000 N lateral force on latch mechanism, -40°C to 85°C ambient temperature**. Failure boundary: **Hinge fatigue failure at 200,000 cycles (S-N curve for 304 stainless steel), latch mechanism failure at 1200 N lateral force, seal compression set exceeding 15% at 105°C**, Mechanism: **Hinge failure due to low-cycle fatigue at stress concentration points (σ_max = 350 MPa exceeding endurance limit of 275 MPa for 304 stainless steel), latch failure from plastic deformation beyond yield strength (σ_y = 290 MPa for cold-rolled steel), seal degradation via Arrhenius accelerated aging (E_a = 85 kJ/mol for EPDM rubber)**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Hinge pin wear exceeding 0.5 mm clearance due to abrasive particles (ISO 12103-1 A4 fine test dust) | 8 | Door misalignment causing 3 mm gap, compromising IP54 ingress protection rating | Integrate labyrinth seal with 0.1 mm clearance on hinge assembly, specify SAE 30 oil lubrication at 0.1 mL/cycle |
| Thermal expansion differential of 0.3 mm between aluminum door frame (α = 23.1×10⁻⁶/°C) and steel panel (α = 12×10⁻⁶/°C) at ΔT = 60°C | 8 | Binding at latch interface requiring 180 N opening force exceeding ergonomic limit of 90 N | Implement bi-metallic thermal compensation strip with 0.15 mm/k expansion differential, specify 1.5 mm operational clearance at 20°C ambient |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Locking Mechanism](https://cnfx.com/llms/industry/fabricated-metal-product-manufacturing/product/locking-mechanism.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Panel Bending Machine**, **Powder Coating System**, **Automated Assembly Line**  
**Downstream Applications**: Electrical Enclosures, Control Panels, Industrial Cabinets  

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

### Q: What materials are best for industrial panel enclosure doors?
**A**: Steel offers maximum durability and security, aluminum provides corrosion resistance with lighter weight, and polycarbonate allows for visibility while maintaining protection.

### Q: How do the sealing mechanisms work on these enclosure doors?
**A**: Our doors include specialized gaskets and seals that create tight environmental barriers, protecting internal components from dust, moisture, and contaminants in industrial settings.

### Q: Can I get a custom viewing window in my machinery enclosure door?
**A**: Yes, we offer customizable viewing windows in various sizes and materials, allowing operators to monitor equipment status without compromising the protective barrier.

## 6. Manufacturing Compliance
- ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS
- EN 14351-1:2006 - WINDOWS AND DOORS - PRODUCT STANDARD

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Door](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/door)**

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

> **Reference ID**: DOOR | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 2feaaf89
