---
title: "Drum Barrel"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:DRUM_BARREL"
  data_integrity_hash: "683eb33a18137272f7af49f975392c7a"
  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:DRUM_BARREL"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/drum-barrel.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/drum-barrel"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-3.0 MPa internal pressure, 0-150°C operating temperature, 0-60 RPM rotational speed"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 250
    unit: "MPa"
    consequence: "Plastic deformation from hoop stress exceeding yield strength (σ_θ = P·r/t &gt; σ_y), where P=internal pressure, r=radius, t=wall thickness, σ_y=250 MPa for SA-516 Grade 70 steel"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Corrosion rate exceeding 0.5 mm/year from chloride-induced pitting"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Cathodic protection system maintaining -850 mV vs. Ag/AgCl reference electrode"
  - node_2:
      trigger: "Bearing misalignment exceeding 0.05 mm/m causing dynamic unbalance"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Laser alignment during installation with 0.02 mm/m tolerance and dynamic balancing to G2.5 ISO 1940-1 standard"
bom_nodes:
  barrel-shell:
    type: "component"
    urn: "URN:CNFX:ME:BARREL_SHELL"
    interface_type: "physical-logic-coupled"
  end-plates:
    type: "component"
    urn: "URN:CNFX:ME:END_PLATES"
    interface_type: "physical-logic-coupled"
  mounting-flanges:
    type: "component"
    urn: "URN:CNFX:ME:MOUNTING_FLANGES"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 15750-2:2002 (STEEL DRUMS)"
    scope: "Verified Engineering Specification"
  - standard: "ANSI MH2:2016 (INDUSTRIAL AND COMMERCIAL STEEL DRUMS)"
    scope: "Verified Engineering Specification"
  - standard: "DIN 6643-1:2015 (LIGHT METAL DRUMS)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/drum-barrel.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "acfbf2a7747756d8afd56ff174b2145d4af0c75e94c04f4575cd20d05aaf8fff"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Drum Barrel

## 1. Technical Definition
The cylindrical main body of a rotating drum that provides structural integrity and contains materials during processing.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-3.0 MPa internal pressure, 0-150°C operating temperature, 0-60 RPM rotational speed**. Failure boundary: **Yield at 250 MPa von Mises stress, 4.0 MPa burst pressure, 0.5 mm permanent deformation at 180°C**, Mechanism: **Plastic deformation from hoop stress exceeding yield strength (σ_θ = P·r/t &gt; σ_y), where P=internal pressure, r=radius, t=wall thickness, σ_y=250 MPa for SA-516 Grade 70 steel**.

### 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 |
| :--- | :--- | :--- | :--- |
| Corrosion rate exceeding 0.5 mm/year from chloride-induced pitting | 8 | Wall thickness reduction below minimum design thickness of 12 mm | Cathodic protection system maintaining -850 mV vs. Ag/AgCl reference electrode |
| Bearing misalignment exceeding 0.05 mm/m causing dynamic unbalance | 8 | Resonant vibration at 45 Hz exceeding 2.5 mm/s RMS velocity | Laser alignment during installation with 0.02 mm/m tolerance and dynamic balancing to G2.5 ISO 1940-1 standard |

## 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**: **Drive Motor and Gearbox Assembly**, **Material Feeding System**, **Control Panel with PLC**  
**Downstream Applications**: Mixed Concrete, Blended Fertilizers, Processed Minerals  

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

### Q: What are the main components of a drum barrel?
**A**: A drum barrel consists of three primary components: the barrel shell (cylindrical body), end plates (sealed ends), and mounting flanges (connection points for installation and rotation).

### Q: What materials are drum barrels typically made from?
**A**: Drum barrels are commonly manufactured from carbon steel for general industrial use or stainless steel for applications requiring corrosion resistance, such as food processing or chemical handling.

### Q: How do drum barrels maintain structural integrity during rotation?
**A**: Drum barrels maintain structural integrity through robust construction of the cylindrical shell, reinforced end plates, and secure mounting flanges that distribute rotational forces evenly while containing materials during processing operations.

## 6. Manufacturing Compliance
- ISO 15750-2:2002 (STEEL DRUMS)
- ANSI MH2:2016 (INDUSTRIAL AND COMMERCIAL STEEL DRUMS)
- DIN 6643-1:2015 (LIGHT METAL DRUMS)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Drum Barrel](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/drum-barrel)**

### 🌐 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**: DRUM_BARREL | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: b45333e1
