---
title: "Overhead Guard"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:OVERHEAD_GUARD"
  data_integrity_hash: "36a9a98d80e95e895554e7db4e29ac03"
  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:OVERHEAD_GUARD"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/overhead-guard.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/overhead-guard"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-5000 N static load, 0-250 J impact energy"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 550
    unit: "MPa"
    consequence: "Plastic deformation due to stress concentration at weld joints exceeding material yield point under impact loading"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Corrosion-induced material thinning at 0.5 mm/year rate in chloride environments"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Hot-dip galvanizing with 85 μm zinc coating and cathodic protection system"
  - node_2:
      trigger: "Fatigue crack propagation from cyclic loading at 10^6 cycles with stress amplitude of 150 MPa"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Ultrasonic testing every 2000 operating hours with 2 mm crack detection threshold"
bom_nodes:
  main-frame:
    type: "part"
    urn: "URN:CNFX:ME:MAIN_FRAME"
    interface_type: "physical-logic-coupled"
  cross-members:
    type: "component"
    urn: "URN:CNFX:ME:CROSS_MEMBERS"
    interface_type: "physical-logic-coupled"
  mounting-brackets:
    type: "component"
    urn: "URN:CNFX:ME:MOUNTING_BRACKETS"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 6055:2004 - SAFETY OF INDUSTRIAL TRUCKS - OVERHEAD GUARDS - SPECIFICATION AND TESTING"
    scope: "Verified Engineering Specification"
  - standard: "CE EN 1726-1:1999 - SAFETY OF INDUSTRIAL TRUCKS - SELF-PROPELLED TRUCKS UP TO AND INCLUDING 10,000 KG CAPACITY AND INDUSTRIAL TRACTORS WITH A DRAWBAR PULL UP TO AND INCLUDING 20,000 N - PART 1: GENERAL REQUIREMENTS"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/overhead-guard.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "5d7bb0764a0267101a96c47fe7be157d31d382ac854da4a19625a173f1d4faea"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Overhead Guard

## 1. Technical Definition
A protective structure mounted above the operator's compartment of a forklift truck to shield against falling objects.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-5000 N static load, 0-250 J impact energy**. Failure boundary: **Material yield strength exceeded at 550 MPa for structural steel, 350 MPa for aluminum alloy**, Mechanism: **Plastic deformation due to stress concentration at weld joints exceeding material yield point under impact loading**.

### 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 material thinning at 0.5 mm/year rate in chloride environments | 8 | Structural collapse under 3000 N load due to reduced cross-sectional area | Hot-dip galvanizing with 85 μm zinc coating and cathodic protection system |
| Fatigue crack propagation from cyclic loading at 10^6 cycles with stress amplitude of 150 MPa | 8 | Catastrophic fracture at critical crack length of 25 mm | Ultrasonic testing every 2000 operating hours with 2 mm crack detection threshold |

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

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

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Hydraulic Press Brake**, **Welding Robot System**, **Shot Blasting Machine**  
**Downstream Applications**: Counterbalance Forklift, Reach Truck, Order Picker  

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

### Q: What materials are used in your overhead guards?
**A**: Our overhead guards are constructed from high-strength steel for maximum durability and impact resistance in industrial environments.

### Q: How does the overhead guard protect forklift operators?
**A**: The guard creates a protective barrier above the operator's compartment, deflecting or containing falling objects that could otherwise cause serious injury.

### Q: What components are included in the overhead guard assembly?
**A**: Each overhead guard includes cross members, a main frame, and mounting brackets for secure installation on forklift trucks.

## 6. Manufacturing Compliance
- ISO 6055:2004 - SAFETY OF INDUSTRIAL TRUCKS - OVERHEAD GUARDS - SPECIFICATION AND TESTING
- CE EN 1726-1:1999 - SAFETY OF INDUSTRIAL TRUCKS - SELF-PROPELLED TRUCKS UP TO AND INCLUDING 10,000 KG CAPACITY AND INDUSTRIAL TRACTORS WITH A DRAWBAR PULL UP TO AND INCLUDING 20,000 N - PART 1: GENERAL REQUIREMENTS

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

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **3** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: OVERHEAD_GUARD | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 2515487d
