---
title: "Quick Attach Coupler"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:QUICK_ATTACH_COUPLER"
  data_integrity_hash: "bd24ba4758263b62c53ec25620b6bebe"
  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:QUICK_ATTACH_COUPLER"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/quick-attach-coupler.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/quick-attach-coupler"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "17.2-34.5 MPa (2500-5000 psi) hydraulic pressure, -40°C to 120°C temperature"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 41.4
    unit: "MPa"
    consequence: "High-cycle fatigue from cyclic loading at stress concentration points (notch factor Kt=2.8), fretting corrosion at pin-bushing interfaces (wear coefficient K=3.2×10⁻⁶ mm³/N·m), hydraulic fluid contamination exceeding ISO 4406 18/16/13 cleanliness level causing spool valve sticking"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Hydraulic fluid contamination with 15 μm particles exceeding 1000 particles/mL"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integrate 10 μm absolute filtration with differential pressure monitoring at 0.35 MPa (50 psi) threshold"
  - node_2:
      trigger: "Misalignment exceeding 0.25° angular deviation during implement attachment"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Implement guided alignment system with tapered lead-in geometry (3° draft angle) and proximity sensors detecting &gt;0.15° misalignment"
bom_nodes:
  mounting-plate:
    type: "component"
    urn: "URN:CNFX:ME:MOUNTING_PLATE"
    interface_type: "physical-logic-coupled"
  locking-pins:
    type: "component"
    urn: "URN:CNFX:ME:LOCKING_PINS"
    interface_type: "physical-logic-coupled"
  actuation-mechanism:
    type: "part"
    urn: "URN:CNFX:ME:ACTUATION_MECHANISM"
    interface_type: "physical-logic-coupled"
  alignment-guides:
    type: "component"
    urn: "URN:CNFX:ME:ALIGNMENT_GUIDES"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/quick-attach-coupler.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "9cc7a3ebcfff31f35340fe2bd9f2690af94d4fdfda06455f416cf2a62099a6e2"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Quick Attach Coupler

## 1. Technical Definition
A mechanical interface that enables rapid attachment and detachment of various implements to a skid steer loader without tools.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **17.2-34.5 MPa (2500-5000 psi) hydraulic pressure, -40°C to 120°C temperature**. Failure boundary: **Shear failure at 41.4 MPa (6000 psi) hydraulic pressure, material yield at 620 MPa (90 ksi) tensile stress, 0.5 mm permanent deformation at locking mechanism interface**, Mechanism: **High-cycle fatigue from cyclic loading at stress concentration points (notch factor Kt=2.8), fretting corrosion at pin-bushing interfaces (wear coefficient K=3.2×10⁻⁶ mm³/N·m), hydraulic fluid contamination exceeding ISO 4406 18/16/13 cleanliness level causing spool valve sticking**.

### 2.1 Analytical Physics Model
Governed by the **Thin-Wall Pressure Vessel Stress Analysis**:

> **Primary Equation**: $\sigma_h = \frac{P \cdot D}{2t}$  
> **Engineering Impact**: Determines the hoop stress boundary to prevent rupture.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| P | Internal Pressure | Engineering Constant |
| D | Diameter | Engineering Constant |
| t | Wall Thickness | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Hydraulic fluid contamination with 15 μm particles exceeding 1000 particles/mL | 8 | Spool valve seizure preventing hydraulic flow to locking mechanism | Integrate 10 μm absolute filtration with differential pressure monitoring at 0.35 MPa (50 psi) threshold |
| Misalignment exceeding 0.25° angular deviation during implement attachment | 8 | Asymmetric loading causing premature bushing wear and pin bending fatigue | Implement guided alignment system with tapered lead-in geometry (3° draft angle) and proximity sensors detecting &gt;0.15° misalignment |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Actuation Mechanism](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/actuation-mechanism.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Skid Steer Loader**, **Hydraulic Power Unit**, **Attachment Alignment System**  
**Downstream Applications**: Landscaping Equipment, Construction Implements, Agricultural Attachments  

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

### Q: What materials are used in the Quick Attach Coupler construction?
**A**: The Quick Attach Coupler is constructed from high-strength steel, ensuring durability and reliability for heavy-duty machinery applications in equipment manufacturing.

### Q: How does the Quick Attach Coupler enable tool-free operation?
**A**: It features an integrated actuation mechanism and alignment guides that allow operators to securely attach and detach implements to skid steer loaders without requiring additional tools.

### Q: What are the main components in the Quick Attach Coupler BOM?
**A**: The Bill of Materials includes a mounting plate, locking pins, actuation mechanism, and alignment guides - all designed for seamless integration with skid steer loaders and various implements.

## 6. Manufacturing Compliance

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### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Quick Attach Coupler](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/quick-attach-coupler)**

### 🌐 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**: QUICK_ATTACH_COUPLER | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: ea977158
