---
title: "Drum Body"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:DRUM_BODY"
  data_integrity_hash: "b4348e19a8e10dcd25b15a82361fb8d2"
  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_BODY"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/drum-body.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/drum-body"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-1200 RPM rotational speed, -40°C to +85°C ambient temperature, 0-100% relative humidity"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 250
    unit: "MPa"
    consequence: "High-cycle fatigue from cyclic loading during rotation, stress concentration at mounting points, thermal expansion mismatch between aluminum body and steel bearings"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Bearing lubrication degradation due to particulate contamination"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Sealed-for-life bearings with IP67 rating, magnetic particle detection sensors"
  - node_2:
      trigger: "Dynamic imbalance exceeding 5 g·mm/kg at operating speed"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Precision balancing to ISO 1940 G2.5 standard, real-time vibration monitoring with 0.1 mm/s threshold"
bom_nodes:
  chamber-walls:
    type: "component"
    urn: "URN:CNFX:ME:CHAMBER_WALLS"
    interface_type: "physical-logic-coupled"
  mounting-flange:
    type: "component"
    urn: "URN:CNFX:ME:MOUNTING_FLANGE"
    interface_type: "physical-logic-coupled"
  rotation-bearing-surface:
    type: "component"
    urn: "URN:CNFX:ME:ROTATION_BEARING_SURFACE"
    interface_type: "physical-logic-coupled"
  indexing-features:
    type: "component"
    urn: "URN:CNFX:ME:INDEXING_FEATURES"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
  - standard: "CE MARKING - CONFORMITé EUROPéENNE FOR PRESSURE EQUIPMENT DIRECTIVE 2014/68/EU"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/drum-body.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "388f664b1eb409e0672eb285b8b8f6e3e84007639a63143f2fd576d73a15d15f"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Drum Body

## 1. Technical Definition
The main structural component of a magazine carousel or drum that houses and rotates cartridges, rounds, or other ammunition components.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-1200 RPM rotational speed, -40°C to +85°C ambient temperature, 0-100% relative humidity**. Failure boundary: **Material yield strength exceeded at 250 MPa stress, bearing fatigue life limit at 10^7 cycles, critical speed resonance at 1800 RPM**, Mechanism: **High-cycle fatigue from cyclic loading during rotation, stress concentration at mounting points, thermal expansion mismatch between aluminum body and steel bearings**.

### 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 |
| :--- | :--- | :--- | :--- |
| Bearing lubrication degradation due to particulate contamination | 8 | Increased rotational friction leading to torque overload | Sealed-for-life bearings with IP67 rating, magnetic particle detection sensors |
| Dynamic imbalance exceeding 5 g·mm/kg at operating speed | 8 | Vibration-induced structural resonance and premature bearing failure | Precision balancing to ISO 1940 G2.5 standard, real-time vibration monitoring with 0.1 mm/s threshold |

## 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**: **Rotary Indexing Table**, **Cartridge Loading System**, **Precision Bearing Assembly**  
**Downstream Applications**: Ammunition Carousel Systems, Magazine Drum Assemblies, Automatic Loading Mechanisms  

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

### Q: What materials are commonly used for drum bodies in ammunition handling equipment?
**A**: Drum bodies are typically manufactured from high-strength steel, lightweight aluminum alloy, or durable polymer composites, depending on the required balance of strength, weight, and corrosion resistance for specific applications.

### Q: What are the key components of a drum body in a magazine carousel system?
**A**: A drum body consists of chamber walls to house ammunition, a mounting flange for secure attachment, a rotation bearing surface for smooth movement, and indexing features to ensure precise alignment during operation.

### Q: How does the drum body contribute to ammunition handling system reliability?
**A**: The drum body provides the structural integrity and rotational stability needed for consistent ammunition feeding, protecting components from damage while ensuring smooth, indexed rotation in demanding industrial environments.

## 6. Manufacturing Compliance
- ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS
- CE MARKING - CONFORMITé EUROPéENNE FOR PRESSURE EQUIPMENT DIRECTIVE 2014/68/EU

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

### 🌐 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**: DRUM_BODY | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 1033fc4e
