---
title: "Hoist Drum"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:HOIST_DRUM"
  data_integrity_hash: "bc020c8d4846df8164ba53fdd5b883f1"
  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:HOIST_DRUM"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/hoist-drum.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/hoist-drum"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-150 kN·m torque, 0-30 rpm rotational speed, 0-100°C operating temperature"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 250
    unit: "MPa"
    consequence: "Plastic deformation due to combined bending and torsional stresses exceeding material yield point, accelerated by stress concentration at cable groove roots following Neuber's rule"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Cable misalignment causing 5° off-axis loading"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integrate laser-guided alignment system with 0.1° angular resolution and automatic tension balancing"
  - node_2:
      trigger: "Cyclic loading at 0.5 Hz frequency exceeding 10^6 cycles at 80% yield strength"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Implement shot peening to induce 400 MPa compressive residual stress layer at critical stress concentration zones"
bom_nodes:
  drum-barrel:
    type: "part"
    urn: "URN:CNFX:ME:DRUM_BARREL"
    interface_type: "physical-logic-coupled"
  flanges:
    type: "component"
    urn: "URN:CNFX:ME:FLANGES"
    interface_type: "physical-logic-coupled"
  grooves:
    type: "component"
    urn: "URN:CNFX:ME:GROOVES"
    interface_type: "physical-logic-coupled"
  shaft-connection:
    type: "component"
    urn: "URN:CNFX:ME:SHAFT_CONNECTION"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 4308-1:2018 CRANES AND LIFTING APPLIANCES - SELECTION OF WIRE ROPES - PART 1: GENERAL"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/ASME B30.7:2021 BASE MOUNTED DRUM HOISTS"
    scope: "Verified Engineering Specification"
  - standard: "DIN 15020-1:1974 CRANES; PRINCIPLES RELATING TO ROPE DRIVES; CALCULATIONS AND CONSTRUCTION"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/hoist-drum.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "db36faea2f7b6af0e87f7491f2d00d4a449ce5fbc861f1b096c3b6aad09e4ce6"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Hoist Drum

## 1. Technical Definition
A cylindrical component in hoist mechanisms that winds and unwinds the lifting cable or rope to raise and lower loads.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-150 kN·m torque, 0-30 rpm rotational speed, 0-100°C operating temperature**. Failure boundary: **Yield strength exceeded at 250 MPa stress, 0.5 mm permanent deformation in drum groove, 1.5° angular deflection from true cylindrical form**, Mechanism: **Plastic deformation due to combined bending and torsional stresses exceeding material yield point, accelerated by stress concentration at cable groove roots following Neuber's rule**.

### 2.1 Analytical Physics Model
Governed by the **L10 Bearing Life & Fatigue Model**:

> **Primary Equation**: $L_{10} = (\frac{C}{P})^p$  
> **Engineering Impact**: Predicts mechanical lifecycle before component fatigue.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| C | Dynamic Load Rating | Engineering Constant |
| P | Equivalent Dynamic Load | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Cable misalignment causing 5° off-axis loading | 8 | Asymmetric wear pattern exceeding 3 mm depth differential across drum width | Integrate laser-guided alignment system with 0.1° angular resolution and automatic tension balancing |
| Cyclic loading at 0.5 Hz frequency exceeding 10^6 cycles at 80% yield strength | 8 | Fatigue crack initiation at groove root propagating at 0.01 mm/cycle following Paris' law | Implement shot peening to induce 400 MPa compressive residual stress layer at critical stress concentration zones |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Drum Barrel](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/drum-barrel.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Electric Motor**, **Gear Reducer**, **Braking System**  
**Downstream Applications**: Overhead Cranes, Construction Hoists, Mining Winches  

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

### Q: What materials are used in hoist drum manufacturing?
**A**: Hoist drums are typically manufactured from carbon steel or alloy steel, chosen for their strength, durability, and ability to withstand heavy loads and repetitive stress in industrial lifting applications.

### Q: What are the main components of a hoist drum?
**A**: The main components include the drum barrel (the cylindrical body that winds the cable), flanges (the sides that contain the cable), grooves (spiraled channels that guide the cable), and the shaft connection (which attaches the drum to the drive mechanism).

### Q: How does a hoist drum function in lifting equipment?
**A**: The hoist drum rotates to wind or unwind the lifting cable or rope, directly controlling the raising and lowering of loads. Its design ensures proper cable alignment, tension, and smooth operation for safe and efficient material handling.

## 6. Manufacturing Compliance
- ISO 4308-1:2018 CRANES AND LIFTING APPLIANCES - SELECTION OF WIRE ROPES - PART 1: GENERAL
- ANSI/ASME B30.7:2021 BASE MOUNTED DRUM HOISTS
- DIN 15020-1:1974 CRANES; PRINCIPLES RELATING TO ROPE DRIVES; CALCULATIONS AND CONSTRUCTION

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

### 🌐 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**: HOIST_DRUM | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: df4a4d94
