---
title: "Hydraulic Arm"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:HYDRAULIC_ARM"
  data_integrity_hash: "2261f1f07ac106c337a365c8d237ec03"
  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:HYDRAULIC_ARM"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/hydraulic-arm.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/hydraulic-arm"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "70-210 bar"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 280
    unit: "bar"
    consequence: "Yield strength exceedance of SAE 1018 steel cylinder (415 MPa) causing plastic deformation and rupture"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Particulate contamination exceeding ISO 4406 18/16/13"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install 3 μm absolute beta₃≥200 filter with pressure differential monitoring"
  - node_2:
      trigger: "Hydraulic fluid temperature sustained at 85°C for &gt;1000 hours"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integrate plate heat exchanger maintaining fluid at 45±5°C"
bom_nodes:
  main-beam:
    type: "component"
    urn: "URN:CNFX:ME:MAIN_BEAM"
    interface_type: "physical-logic-coupled"
  cylinder-mounting-brackets:
    type: "component"
    urn: "URN:CNFX:ME:CYLINDER_MOUNTING_BRACKETS"
    interface_type: "physical-logic-coupled"
  pivot-bushingsbearings:
    type: "component"
    urn: "URN:CNFX:ME:PIVOT_BUSHINGSBEARINGS"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/hydraulic-arm.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "acb941b5d032d9441d78383d3d9a3498e7a386b6bc69d2cc4c65342efa416168"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Hydraulic Arm

## 1. Technical Definition
A hydraulic-powered structural component that provides the primary lifting and positioning force in heavy machinery.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **70-210 bar**. Failure boundary: **280 bar (burst pressure) at 20°C, 230 bar at 80°C**, Mechanism: **Yield strength exceedance of SAE 1018 steel cylinder (415 MPa) causing plastic deformation and rupture**.

### 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 |
| :--- | :--- | :--- | :--- |
| Particulate contamination exceeding ISO 4406 18/16/13 | 8 | Spool valve stiction causing erratic actuator movement | Install 3 μm absolute beta₃≥200 filter with pressure differential monitoring |
| Hydraulic fluid temperature sustained at 85°C for &gt;1000 hours | 8 | Seal hardening and leakage at 0.5 L/min | Integrate plate heat exchanger maintaining fluid at 45±5°C |

## 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**: **Hydraulic Power Unit**, **Control System Cabinet**, **Hydraulic Fluid Filtration System**  
**Downstream Applications**: Excavators, Cranes, Material Handling Equipment  

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

### Q: What materials are used in this hydraulic arm?
**A**: This hydraulic arm is constructed from high-strength alloy steel for maximum durability and load-bearing capacity in industrial applications.

### Q: What are the main components of this hydraulic arm?
**A**: Key components include cylinder mounting brackets, a main beam, and pivot bushings/bearings that work together to provide precise lifting and positioning.

### Q: What types of machinery use this hydraulic arm?
**A**: This hydraulic arm is designed for heavy machinery in construction, manufacturing, and material handling equipment where reliable lifting and positioning are essential.

## 6. Manufacturing Compliance

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

### 🌐 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**: HYDRAULIC_ARM | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: d1addfd3
