---
title: "Hydraulic Jacking Cylinders"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:HYDRAULIC_JACKING_CYLINDERS"
  data_integrity_hash: "8d22ea37da02825a3a7ef0b822acef6f"
  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_JACKING_CYLINDERS"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/hydraulic-jacking-cylinders.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/hydraulic-jacking-cylinders"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "50-700 bar"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 250
    unit: "MPa"
    consequence: "Plastic deformation due to hoop stress exceeding material yield strength, calculated by σ_h = (P × D)/(2 × t) where P=pressure, D=internal diameter, t=wall thickness"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Contaminant particle &gt;15 μm in hydraulic fluid"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install 10 μm absolute filtration with differential pressure monitoring at 0.7 bar threshold"
  - node_2:
      trigger: "Rod misalignment &gt;0.1 mm/m during mounting"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Precision alignment fixtures with laser measurement to 0.02 mm accuracy during installation"
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"
  seal-kit:
    type: "component"
    urn: "URN:CNFX:ME:SEAL_KIT"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/hydraulic-jacking-cylinders.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "feadf02d5ca9baaf90f370fce93ee14149c3704c6b4e16876d43cb6b943620ff"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Hydraulic Jacking Cylinders

## 1. Technical Definition
Hydraulic cylinders specifically designed for lifting and positioning heavy loads in industrial applications.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **50-700 bar**. Failure boundary: **Material yield strength of 250 MPa for SAE 1045 steel cylinders at 20°C**, Mechanism: **Plastic deformation due to hoop stress exceeding material yield strength, calculated by σ_h = (P × D)/(2 × t) where P=pressure, D=internal diameter, t=wall thickness**.

### 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 |
| :--- | :--- | :--- | :--- |
| Contaminant particle &gt;15 μm in hydraulic fluid | 8 | Seal extrusion and scoring of cylinder bore surface | Install 10 μm absolute filtration with differential pressure monitoring at 0.7 bar threshold |
| Rod misalignment &gt;0.1 mm/m during mounting | 8 | Asymmetric wear pattern on rod seals leading to hydraulic fluid leakage | Precision alignment fixtures with laser measurement to 0.02 mm accuracy during installation |

## 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**, **Load Positioning Sensors**  
**Downstream Applications**: Heavy Machinery Assembly, Industrial Press Systems, Material Handling Equipment  

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

### Q: What are the main applications for hydraulic jacking cylinders?
**A**: Hydraulic jacking cylinders are designed for lifting, positioning, and supporting heavy loads in industrial settings such as machinery installation, maintenance, manufacturing processes, and construction equipment alignment.

### Q: Why are chromium-plated piston rods used in these cylinders?
**A**: Chromium plating provides superior corrosion resistance, reduces friction for smoother operation, extends seal life, and enhances durability in harsh industrial environments where exposure to contaminants is common.

### Q: What maintenance is required for hydraulic jacking cylinders?
**A**: Regular inspection of polyurethane seals for wear, monitoring hydraulic fluid quality, checking for piston rod surface damage, and ensuring proper alignment during operation. Seal kits should be replaced according to manufacturer specifications.

## 6. Manufacturing Compliance

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

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **4** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: HYDRAULIC_JACKING_CYLINDERS | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 07773db7
