---
title: "Damping Cylinder"
industry: "Furniture Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:DAMPING_CYLINDER"
  data_integrity_hash: "142cc1050f85c244b4065a36cccd87cd"
  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:DAMPING_CYLINDER"
  data_source_uri: "https://cnfx.com/llms/industry/furniture-manufacturing/product/damping-cylinder.md"
  official_resource_url: "https://cnfx.com/industry/furniture-manufacturing/product/damping-cylinder"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "2.0-10.0 bar hydraulic pressure, 0.5-2.0 bar pneumatic pressure, -20°C to +80°C ambient temperature"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 12.5
    unit: "bar"
    consequence: "Seal extrusion failure at 3.0 bar due to 70 Shore A hardness nitrile rubber exceeding 25% compression set, cavitation at 0.5 bar absolute pressure causing vapor bubble collapse and pitting, thermal fatigue from 10⁴ cycles between -20°C and +80°C exceeding 0.2% strain limit of 6061-T6 aluminum"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Particulate contamination exceeding ISO 4406 18/16/13 cleanliness level in hydraulic fluid"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install 10 μm absolute beta₃≥200 filter with 0.5 bar differential pressure sensor and bypass valve"
  - node_2:
      trigger: "Rod seal extrusion at 3.0 bar due to 0.15 mm clearance exceeding Parker PR1 design limit"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Implement 0.05 mm clearance tolerance with PTFE-filled bronze wear rings and 90 Shore A polyurethane rod seals"
bom_nodes:
  cylinder-body:
    type: "component"
    urn: "URN:CNFX:ME:CYLINDER_BODY"
    interface_type: "physical-logic-coupled"
  piston:
    type: "component"
    urn: "URN:CNFX:ME:PISTON"
    interface_type: "physical-logic-coupled"
  hydraulic-fluid-chamber:
    type: "part"
    urn: "URN:CNFX:ME:HYDRAULIC_FLUID_CHAMBER"
    interface_type: "physical-logic-coupled"
  seals:
    type: "component"
    urn: "URN:CNFX:ME:SEALS"
    interface_type: "physical-logic-coupled"
  mounting-bracket:
    type: "component"
    urn: "URN:CNFX:ME:MOUNTING_BRACKET"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
url: "https://cnfx.com/llms/industry/furniture-manufacturing/product/damping-cylinder.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "64413c4ddf85b81aae85dd3e2c2e3f43e1692a9da1662297bf3514a92139f1af"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Damping Cylinder

## 1. Technical Definition
A hydraulic or pneumatic cylinder that provides controlled resistance to slow down the closing motion of furniture hinges.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **2.0-10.0 bar hydraulic pressure, 0.5-2.0 bar pneumatic pressure, -20°C to +80°C ambient temperature**. Failure boundary: **Hydraulic: 12.5 bar burst pressure, Pneumatic: 3.0 bar seal extrusion limit, 100°C thermal degradation of nitrile seals, 0.1 mm rod deflection at 500 N side load**, Mechanism: **Seal extrusion failure at 3.0 bar due to 70 Shore A hardness nitrile rubber exceeding 25% compression set, cavitation at 0.5 bar absolute pressure causing vapor bubble collapse and pitting, thermal fatigue from 10⁴ cycles between -20°C and +80°C exceeding 0.2% strain limit of 6061-T6 aluminum**.

### 2.1 Analytical Physics Model
Governed by the **Harmonic Vibration Force Generation**:

> **Primary Equation**: $F_e = m \cdot r \cdot \omega^2 \sin(\omega t)$  
> **Engineering Impact**: Calculates centrifugal force for vibratory sifters/feeders.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| m | Eccentric Mass | Engineering Constant |
| r | Radius | Engineering Constant |
| \omega | Angular Frequency | 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 in hydraulic fluid | 8 | Spool valve stiction causing 0.5 second response delay and inconsistent damping force | Install 10 μm absolute beta₃≥200 filter with 0.5 bar differential pressure sensor and bypass valve |
| Rod seal extrusion at 3.0 bar due to 0.15 mm clearance exceeding Parker PR1 design limit | 8 | Hydraulic fluid leakage at 5 mL/min causing 20% damping force reduction per 1000 cycles | Implement 0.05 mm clearance tolerance with PTFE-filled bronze wear rings and 90 Shore A polyurethane rod seals |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Hydraulic Fluid Chamber](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/hydraulic-fluid-chamber.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Hydraulic Power Unit**, **Pneumatic Compressor System**, **Automated Assembly Fixture**  
**Downstream Applications**: Cabinet Doors, Desk Drawers, Wardrobe Panels  

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

### Q: What is the purpose of a damping cylinder in furniture manufacturing?
**A**: A damping cylinder provides controlled resistance to slow down the closing motion of furniture hinges, preventing slamming and ensuring smooth, quiet operation for doors and cabinets.

### Q: What materials are commonly used in damping cylinders for furniture?
**A**: Common materials include stainless steel for corrosion resistance, aluminum alloy for lightweight durability, engineering plastic for components, and hydraulic oil for smooth damping action.

### Q: How do I install a damping cylinder on furniture hinges?
**A**: Installation typically involves mounting the cylinder body with brackets to the furniture frame and connecting it to the hinge mechanism, ensuring proper alignment for smooth operation.

## 6. Manufacturing Compliance

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Damping Cylinder](https://cnfx.com/industry/furniture-manufacturing/product/damping-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**: DAMPING_CYLINDER | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: c4009a21
