---
title: "ROPS Frame"
industry: "Motor Vehicle Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:ROPS_FRAME"
  data_integrity_hash: "538347de11d4ec9bdababfaa16538662"
  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:ROPS_FRAME"
  data_source_uri: "https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/rops-frame.md"
  official_resource_url: "https://cnfx.com/industry/motor-vehicle-manufacturing/product/rops-frame"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-150 kN static load, 0-50 kN dynamic impact load"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 180
    unit: "kN"
    consequence: "Yield strength exceedance of ASTM A572 Grade 50 steel (345 MPa yield strength) leading to plastic deformation, followed by ultimate tensile strength exceedance (450 MPa) causing fracture"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Corrosion-induced wall thickness reduction exceeding 2.5 mm"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Hot-dip galvanizing with 85 μm zinc coating and cathodic protection system"
  - node_2:
      trigger: "Weld fatigue crack propagation exceeding 10 mm length"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Full penetration welds with post-weld heat treatment and ultrasonic testing at 2 MHz frequency"
bom_nodes:
  main-upright-post:
    type: "component"
    urn: "URN:CNFX:ME:MAIN_UPRIGHT_POST"
    interface_type: "physical-logic-coupled"
  overhead-crossbar:
    type: "component"
    urn: "URN:CNFX:ME:OVERHEAD_CROSSBAR"
    interface_type: "physical-logic-coupled"
  diagonal-brace:
    type: "component"
    urn: "URN:CNFX:ME:DIAGONAL_BRACE"
    interface_type: "physical-logic-coupled"
  mounting-bracketbase-plate:
    type: "component"
    urn: "URN:CNFX:ME:MOUNTING_BRACKETBASE_PLATE"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 3471:2008 - ROLL-OVER PROTECTIVE STRUCTURES (ROPS) FOR EARTH-MOVING MACHINERY"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/rops-frame.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "f3bc8fd3b2b8fc6adb805244ded3069b871867e905d73a772768fa868fcf9b48"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: ROPS Frame

## 1. Technical Definition
Structural framework that forms the protective cage around the operator cabin to prevent crushing in rollover incidents.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-150 kN static load, 0-50 kN dynamic impact load**. Failure boundary: **Plastic deformation at 180 kN static load, structural collapse at 220 kN static load**, Mechanism: **Yield strength exceedance of ASTM A572 Grade 50 steel (345 MPa yield strength) leading to plastic deformation, followed by ultimate tensile strength exceedance (450 MPa) causing fracture**.

### 2.1 Analytical Physics Model
Governed by the **Frame Structural Deflection Analysis**:

> **Primary Equation**: $\delta = \frac{5 q L^4}{384 E I}$  
> **Engineering Impact**: Ensures structural stability for multi-stage machines.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| q | Uniform Load | Engineering Constant |
| E | Elastic Modulus | Engineering Constant |
| I | Moment of Inertia | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Corrosion-induced wall thickness reduction exceeding 2.5 mm | 8 | Localized buckling at stress concentration points during rollover | Hot-dip galvanizing with 85 μm zinc coating and cathodic protection system |
| Weld fatigue crack propagation exceeding 10 mm length | 8 | Progressive fracture along main structural welds under cyclic loading | Full penetration welds with post-weld heat treatment and ultrasonic testing at 2 MHz frequency |

## 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**: **CNC Tube Bending Machine**, **Robotic Welding System**, **Coordinate Measuring Machine**  
**Downstream Applications**: Agricultural Tractors, Construction Equipment, Mining Vehicles  

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

### Q: What materials are used in ROPS frame construction?
**A**: Our ROPS frames are constructed from high-strength steel alloy, providing optimal durability and protection against crushing forces during rollover incidents.

### Q: What components are included in the ROPS frame BOM?
**A**: The bill of materials includes diagonal braces, main upright posts, mounting brackets/base plates, and overhead crossbars to form a complete protective cage structure.

### Q: How does the ROPS frame protect operators during rollovers?
**A**: The structural framework creates a protective cage around the operator cabin that maintains survival space and prevents crushing, meeting industry safety standards for rollover incidents.

## 6. Manufacturing Compliance
- ISO 3471:2008 - ROLL-OVER PROTECTIVE STRUCTURES (ROPS) FOR EARTH-MOVING MACHINERY

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: ROPS Frame](https://cnfx.com/industry/motor-vehicle-manufacturing/product/rops-frame)**

### 🌐 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**: ROPS_FRAME | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 45e63f2f
