---
title: "Tailgate"
industry: "Motor Vehicle Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:TAILGATE"
  data_integrity_hash: "370eafd7cf87182fe53b4700785db113"
  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:TAILGATE"
  data_source_uri: "https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/tailgate.md"
  official_resource_url: "https://cnfx.com/industry/motor-vehicle-manufacturing/product/tailgate"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-2.5 MPa hydraulic pressure, -40°C to 85°C ambient temperature"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 345
    unit: "MPa"
    consequence: "Stress concentration at hinge pin fillet radius below 2 mm causing fatigue crack initiation, hydraulic cylinder seal degradation at temperatures above 120°C"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Hydraulic fluid contamination exceeding ISO 4406 18/16/13 cleanliness level"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install 10 μm absolute filtration with differential pressure monitoring at 0.35 bar threshold"
  - node_2:
      trigger: "Cyclic loading at 10⁶ cycles with stress amplitude of 200 MPa at hinge connection"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Implement shot peening to induce 400-600 MPa compressive residual stress at critical locations"
bom_nodes:
  gate-panel:
    type: "component"
    urn: "URN:CNFX:ME:GATE_PANEL"
    interface_type: "physical-logic-coupled"
  hinge-assembly:
    type: "part"
    urn: "URN:CNFX:ME:HINGE_ASSEMBLY"
    interface_type: "physical-logic-coupled"
  locking-mechanism:
    type: "part"
    urn: "URN:CNFX:ME:LOCKING_MECHANISM"
    interface_type: "physical-logic-coupled"
  reinforcement-ribs:
    type: "component"
    urn: "URN:CNFX:ME:REINFORCEMENT_RIBS"
    interface_type: "physical-logic-coupled"
  sealgasket:
    type: "component"
    urn: "URN:CNFX:ME:SEALGASKET"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 14122-3:2016 (SAFETY OF MACHINERY - PERMANENT MEANS OF ACCESS TO MACHINERY - PART 3: STAIRS, STEPLADDERS AND GUARD-RAILS)"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/ASSE A1264.1-2017 (SAFETY REQUIREMENTS FOR WORKPLACE WALKING/WORKING SURFACES AND THEIR ACCESS; WORKPLACE, FLOOR, WALL AND ROOF OPENINGS; STAIRS AND GUARDRAIL SYSTEMS)"
    scope: "Verified Engineering Specification"
  - standard: "DIN 18008-4:2013 (GLASS IN BUILDING - DESIGN AND CONSTRUCTION RULES - PART 4: ADDITIONAL REQUIREMENTS FOR BARRIER GLAZING)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/tailgate.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "d417637b69c1caff4884e5e9530474f6fed28ee162a02c5cdd3139c7f5f26b3f"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Tailgate

## 1. Technical Definition
A hinged or removable panel at the rear of a dump truck body that controls material discharge.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-2.5 MPa hydraulic pressure, -40°C to 85°C ambient temperature**. Failure boundary: **Hinge pin shear stress exceeds 345 MPa yield strength of AISI 4140 steel, latch mechanism exceeds 450 N·m torque limit**, Mechanism: **Stress concentration at hinge pin fillet radius below 2 mm causing fatigue crack initiation, hydraulic cylinder seal degradation at temperatures above 120°C**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Hydraulic fluid contamination exceeding ISO 4406 18/16/13 cleanliness level | 8 | Spool valve sticking causing asymmetric tailgate opening | Install 10 μm absolute filtration with differential pressure monitoring at 0.35 bar threshold |
| Cyclic loading at 10⁶ cycles with stress amplitude of 200 MPa at hinge connection | 8 | Fatigue fracture initiating at weld toe with radius below 3 mm | Implement shot peening to induce 400-600 MPa compressive residual stress at critical locations |

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

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

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Hydraulic Power Unit**, **Welding Positioner**, **Shot Blasting Machine**  
**Downstream Applications**: Dump Truck, Construction Vehicle, Mining Hauler  

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

### Q: What materials are used in heavy-duty dump truck tailgates?
**A**: Our tailgates are constructed from high-strength steel and abrasion-resistant steel plates to withstand harsh dumping cycles and abrasive materials.

### Q: How does the tailgate control material discharge?
**A**: The hinged or removable panel design allows operators to precisely regulate material flow during dumping operations, preventing uncontrolled spills.

### Q: What maintenance do tailgate components require?
**A**: Regular inspection of hinge assemblies, locking mechanisms, and seals/gaskets ensures optimal performance and prevents premature wear.

## 6. Manufacturing Compliance
- ISO 14122-3:2016 (SAFETY OF MACHINERY - PERMANENT MEANS OF ACCESS TO MACHINERY - PART 3: STAIRS, STEPLADDERS AND GUARD-RAILS)
- ANSI/ASSE A1264.1-2017 (SAFETY REQUIREMENTS FOR WORKPLACE WALKING/WORKING SURFACES AND THEIR ACCESS; WORKPLACE, FLOOR, WALL AND ROOF OPENINGS; STAIRS AND GUARDRAIL SYSTEMS)
- DIN 18008-4:2013 (GLASS IN BUILDING - DESIGN AND CONSTRUCTION RULES - PART 4: ADDITIONAL REQUIREMENTS FOR BARRIER GLAZING)

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

### 🌐 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**: TAILGATE | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 810adc16
