---
title: "Hydraulic Actuator"
industry: "Basic Metal Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:HYDRAULIC_ACTUATOR"
  data_integrity_hash: "67c7e13335844f0971ad6ecdd84591b0"
  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_ACTUATOR"
  data_source_uri: "https://cnfx.com/llms/industry/basic-metal-manufacturing/product/hydraulic-actuator.md"
  official_resource_url: "https://cnfx.com/industry/basic-metal-manufacturing/product/hydraulic-actuator"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "15-210 bar hydraulic pressure, 0.1-2.5 m/s linear velocity, -20°C to 120°C fluid temperature"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 250
    unit: "bar"
    consequence: "Cavitation-induced erosion from Bernoulli's principle (P_abs &lt; P_vapor), thermal degradation of nitrile seals above 120°C, fatigue cracking at stress concentrations exceeding 350 MPa"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Particulate contamination exceeding ISO 4406 18/16/13 cleanliness level"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install 10 μm absolute beta₃≥200 filters with differential pressure monitoring"
  - node_2:
      trigger: "Water content exceeding 500 ppm in hydraulic fluid"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integrate capacitive moisture sensors with automatic coalescing filtration"
bom_nodes:
  cylinder-barrel:
    type: "component"
    urn: "URN:CNFX:ME:CYLINDER_BARREL"
    interface_type: "physical-logic-coupled"
  piston:
    type: "component"
    urn: "URN:CNFX:ME:PISTON"
    interface_type: "physical-logic-coupled"
  piston-rod:
    type: "component"
    urn: "URN:CNFX:ME:PISTON_ROD"
    interface_type: "physical-logic-coupled"
  seals:
    type: "component"
    urn: "URN:CNFX:ME:SEALS"
    interface_type: "physical-logic-coupled"
  mounting-brackets:
    type: "component"
    urn: "URN:CNFX:ME:MOUNTING_BRACKETS"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
url: "https://cnfx.com/llms/industry/basic-metal-manufacturing/product/hydraulic-actuator.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "011fe3d2f8a0b10ff8b446ceb84899aaa54903266da467c476a5ecd8e643cb24"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Hydraulic Actuator

## 1. Technical Definition
A hydraulic-powered mechanical device that converts fluid pressure into linear or rotary motion to precisely control the oscillation of continuous casting molds.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **15-210 bar hydraulic pressure, 0.1-2.5 m/s linear velocity, -20°C to 120°C fluid temperature**. Failure boundary: **Seal failure at 250 bar pressure differential, piston scoring at 3.5 m/s velocity, cavitation onset at 0.85 bar absolute pressure**, Mechanism: **Cavitation-induced erosion from Bernoulli's principle (P_abs &lt; P_vapor), thermal degradation of nitrile seals above 120°C, fatigue cracking at stress concentrations exceeding 350 MPa**.

### 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 cleanliness level | 8 | Spool valve sticking causing 0.5-2.0 second response delay | Install 10 μm absolute beta₃≥200 filters with differential pressure monitoring |
| Water content exceeding 500 ppm in hydraulic fluid | 8 | Electrochemical pitting corrosion on chrome-plated piston rods | Integrate capacitive moisture sensors with automatic coalescing filtration |

## 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**, **Cooling System**, **Control Panel with PLC**  
**Downstream Applications**: Steel Slabs, Steel Billets, Steel Blooms  

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

### Q: What maintenance is required for hydraulic actuators in continuous casting applications?
**A**: Regular inspection of seals for wear, monitoring hydraulic fluid quality, and checking piston rod surfaces for corrosion or damage. Bronze or polymer seals typically require replacement every 6-12 months depending on operating conditions.

### Q: How does this hydraulic actuator improve casting quality?
**A**: By providing precise, controlled oscillation of continuous casting molds, it ensures uniform solidification of molten metal, reducing defects like cracks and inclusions while improving surface quality and dimensional accuracy of cast products.

### Q: What materials make this actuator suitable for harsh metal manufacturing environments?
**A**: Constructed with high-strength steel barrels, chromium-plated piston rods for corrosion resistance, and durable bronze or polymer seals that withstand high temperatures and pressures common in basic metal production facilities.

## 6. Manufacturing Compliance

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### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Hydraulic Actuator](https://cnfx.com/industry/basic-metal-manufacturing/product/hydraulic-actuator)**

### 🌐 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**: HYDRAULIC_ACTUATOR | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: e330d281
