---
title: "Magnetic Drum/Roller"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:MAGNETIC_DRUMROLLER"
  data_integrity_hash: "fe235bf5e0866c019c6ccff73161f2fa"
  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:MAGNETIC_DRUMROLLER"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/magnetic-drumroller.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/magnetic-drumroller"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-2.5 Tesla magnetic flux density, 50-500 RPM rotational speed, 20-80°C operating temperature"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 0.3
    unit: "Tesla"
    consequence: "Curie temperature demagnetization (Tc ≈ 580°C for NdFeB magnets), ferromagnetic hysteresis loss (B-H curve saturation at 1.6-2.0 T), Lenz's law eddy current heating (P ∝ B²ω²)"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Abrasive particle ingress (Mohs hardness &gt;7) into bearing clearance (50-100 μm)"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Labyrinth seal with ferrofluid barrier (viscosity 100-500 mPa·s at 40°C)"
  - node_2:
      trigger: "Cyclic torsional loading exceeding 450 N·m at 3 Hz resonance frequency"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Interference-fit hollow shaft design (δ/d = 0.001-0.002) with fillet radius ≥ 3 mm"
bom_nodes:
  drum-shellcasing:
    type: "component"
    urn: "URN:CNFX:ME:DRUM_SHELLCASING"
    interface_type: "physical-logic-coupled"
  magnetic-assemblycore:
    type: "component"
    urn: "URN:CNFX:ME:MAGNETIC_ASSEMBLYCORE"
    interface_type: "physical-logic-coupled"
  shaft-and-bearings:
    type: "part"
    urn: "URN:CNFX:ME:SHAFT_AND_BEARINGS"
    interface_type: "physical-logic-coupled"
  drive-system-motor-gearbox:
    type: "part"
    urn: "URN:CNFX:ME:DRIVE_SYSTEM_MOTOR_GEARBOX"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/magnetic-drumroller.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "49fed0dab5f216953488952b71ce59e22278c26c14f16f94ad3e0919e0be0db4"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Magnetic Drum/Roller

## 1. Technical Definition
A rotating cylindrical component of a magnetic separator that generates a magnetic field to attract and separate ferrous materials from non-ferrous materials or other substances.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-2.5 Tesla magnetic flux density, 50-500 RPM rotational speed, 20-80°C operating temperature**. Failure boundary: **Magnetic flux density decay below 0.3 Tesla, bearing temperature exceeding 120°C, shaft deflection exceeding 0.5 mm**, Mechanism: **Curie temperature demagnetization (Tc ≈ 580°C for NdFeB magnets), ferromagnetic hysteresis loss (B-H curve saturation at 1.6-2.0 T), Lenz's law eddy current heating (P ∝ B²ω²)**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Abrasive particle ingress (Mohs hardness &gt;7) into bearing clearance (50-100 μm) | 8 | Bearing raceway spalling (ISO 15243:2004 failure mode P5.1) | Labyrinth seal with ferrofluid barrier (viscosity 100-500 mPa·s at 40°C) |
| Cyclic torsional loading exceeding 450 N·m at 3 Hz resonance frequency | 8 | Shaft fatigue fracture at keyway stress concentration (Kt ≈ 2.1) | Interference-fit hollow shaft design (δ/d = 0.001-0.002) with fillet radius ≥ 3 mm |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Shaft and Bearings](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/shaft-and-bearings.md) `(Standalone System)`
- [Drive System (Motor, Gearbox)](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/drive-system-motor-gearbox.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Vibratory Feeder**, **Conveyor System**, **Dust Collection System**  
**Downstream Applications**: Recycled Ferrous Metals, Purified Industrial Minerals, Cleaned Foundry Sand  

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

### Q: What materials are used in the construction of your magnetic drums?
**A**: Our magnetic drums feature a durable stainless steel shell, high-strength NdFeB or ferrite magnetic cores, and mild steel internal structures with precision shafts for reliable industrial operation.

### Q: How does the magnetic drum separate ferrous materials?
**A**: The rotating drum generates a powerful magnetic field that attracts and holds ferrous materials to its surface as it turns, separating them from non-magnetic materials that fall away naturally.

### Q: What industries commonly use magnetic drum separators?
**A**: Magnetic drums are essential in recycling, mining, food processing, chemical production, and aggregate industries for removing ferrous contaminants and recovering valuable ferrous materials.

## 6. Manufacturing Compliance
- ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Magnetic Drum/Roller](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/magnetic-drumroller)**

### 🌐 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**: MAGNETIC_DRUMROLLER | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: e42f9680
