---
title: "Actuator Cylinder"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:ACTUATOR_CYLINDER"
  data_integrity_hash: "cffa72c5c7947a7a8aac365fff6dfdbe"
  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:ACTUATOR_CYLINDER"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/actuator-cylinder.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/actuator-cylinder"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "1.5-350 bar"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 420
    unit: "bar"
    consequence: "Material yield strength exceeded at 420 bar (SAE 1018 steel: 370 MPa yield) causing permanent deformation; below 0.8 bar, insufficient force generation leads to stiction and seal leakage due to pressure differential &lt; seal design threshold"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Hydraulic fluid contamination &gt; ISO 4406 18/16/13"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install 3 μm absolute filtration with differential pressure monitoring at 0.7 bar"
  - node_2:
      trigger: "Piston rod side-load &gt; 0.5 mm misalignment per 100 mm stroke"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integrate rod alignment guide with 0.05 mm tolerance and load cell feedback"
bom_nodes:
  cylinder-barrel:
    type: "part"
    urn: "URN:CNFX:ME:CYLINDER_BARREL"
    interface_type: "physical-logic-coupled"
  piston:
    type: "part"
    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"
  end-caps:
    type: "component"
    urn: "URN:CNFX:ME:END_CAPS"
    interface_type: "physical-logic-coupled"
  seals:
    type: "component"
    urn: "URN:CNFX:ME:SEALS"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/actuator-cylinder.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "1ce9abaa7f08c9f0a6df21bd1db41e85e66ac99e75311bf1bcad8cd891317648"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Actuator Cylinder

## 1. Technical Definition
A mechanical component that converts fluid power into linear motion within an actuation system.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **1.5-350 bar**. Failure boundary: **420 bar (burst pressure) or 0.8 bar (minimum operating pressure)**, Mechanism: **Material yield strength exceeded at 420 bar (SAE 1018 steel: 370 MPa yield) causing permanent deformation; below 0.8 bar, insufficient force generation leads to stiction and seal leakage due to pressure differential &lt; seal design threshold**.

### 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 |
| :--- | :--- | :--- | :--- |
| Hydraulic fluid contamination &gt; ISO 4406 18/16/13 | 8 | Spool valve abrasion causing 15% flow reduction | Install 3 μm absolute filtration with differential pressure monitoring at 0.7 bar |
| Piston rod side-load &gt; 0.5 mm misalignment per 100 mm stroke | 8 | Asymmetric seal wear leading to 25 ml/min external leakage | Integrate rod alignment guide with 0.05 mm tolerance and load cell feedback |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Cylinder Barrel](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/cylinder-barrel.md) `(Standalone System)`
- [Piston](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/piston.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Hydraulic Power Unit**, **Control Valve System**, **Position Feedback Sensor**  
**Downstream Applications**: Industrial Robotic Arms, Packaging Machinery, Material Handling Equipment  

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

### Q: What are the main applications of actuator cylinders in machinery manufacturing?
**A**: Actuator cylinders are essential in machinery manufacturing for applications requiring controlled linear motion, such as in assembly lines, material handling equipment, presses, and automation systems where precise positioning and force are needed.

### Q: How do I choose between carbon steel, stainless steel, and aluminum alloy for an actuator cylinder?
**A**: Select carbon steel for high-strength, cost-effective applications; stainless steel for corrosion resistance in harsh environments; and aluminum alloy for lightweight needs where corrosion resistance and moderate strength are sufficient.

### Q: What maintenance is required for actuator cylinders to ensure longevity?
**A**: Regular maintenance includes inspecting and replacing seals to prevent leaks, checking piston rod alignment, monitoring fluid cleanliness, and lubricating moving parts as per manufacturer specifications to ensure optimal performance and durability.

## 6. Manufacturing Compliance

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### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Actuator Cylinder](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/actuator-cylinder)**

### 🌐 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**: ACTUATOR_CYLINDER | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 615153f0
