---
title: "Overhead Crane"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:OVERHEAD_CRANE"
  data_integrity_hash: "98c6e13a9eaa31eebde12c4fedf1709c"
  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:OVERHEAD_CRANE"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/overhead-crane.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/overhead-crane"
  is_verified_logic: true
attributes:
  primary_spec:
    status: "config-dependent"
    typical_range: "0.5-25.0 m/s horizontal speed, 0.1-1.0 m/s vertical speed, 1.0-500.0 kN lifting capacity"
    unit: "metric tons"
engineering_limits:
  max_safe_operating_point:
    value: 1.5
    unit: "x"
    consequence: "Yield strength exceedance in structural steel (S355JR, 355 MPa yield), bearing fatigue life (L10) depletion at 1,000,000 cycles, electromagnetic torque saturation in AC induction motors beyond 150% rated torque"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Hoist brake solenoid coil insulation breakdown at 1000V dielectric strength threshold"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Dual redundant brake system with independent power sources, daily dielectric testing at 1500V"
  - node_2:
      trigger: "Runway rail joint misalignment exceeding 2 mm vertical gap"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Continuous welded rail installation, ultrasonic testing at 2 MHz frequency for crack detection"
bom_nodes:
  bridge-girder:
    type: "part"
    urn: "URN:CNFX:ME:BRIDGE_GIRDER"
    interface_type: "physical-logic-coupled"
  end-trucks:
    type: "part"
    urn: "URN:CNFX:ME:END_TRUCKS"
    interface_type: "physical-logic-coupled"
  hoist-unit:
    type: "part"
    urn: "URN:CNFX:ME:HOIST_UNIT"
    interface_type: "physical-logic-coupled"
  trolley:
    type: "part"
    urn: "URN:CNFX:ME:TROLLEY"
    interface_type: "physical-logic-coupled"
  runway-beams:
    type: "component"
    urn: "URN:CNFX:ME:RUNWAY_BEAMS"
    interface_type: "physical-logic-coupled"
  control-system:
    type: "device"
    urn: "URN:CNFX:ME:CONTROL_SYSTEM"
    interface_type: "physical-logic-coupled"
  power-feed-system:
    type: "part"
    urn: "URN:CNFX:ME:POWER_FEED_SYSTEM"
    interface_type: "physical-logic-coupled"
  safety-devices:
    type: "part"
    urn: "URN:CNFX:ME:SAFETY_DEVICES"
    interface_type: "physical-logic-coupled"
  cabin:
    type: "part"
    urn: "URN:CNFX:ME:CABIN"
    interface_type: "physical-logic-coupled"
  magnet-system:
    type: "part"
    urn: "URN:CNFX:ME:MAGNET_SYSTEM"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 8686-1:2012 - CRANES - DESIGN PRINCIPLES FOR LOADS AND LOAD COMBINATIONS"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/ASME B30.2-2021 - OVERHEAD AND GANTRY CRANES (TOP RUNNING BRIDGE, SINGLE OR MULTIPLE GIRDER, TOP RUNNING TROLLEY HOIST)"
    scope: "Verified Engineering Specification"
  - standard: "DIN EN 15011:2011 - CRANES - BRIDGE AND GANTRY CRANES"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/overhead-crane.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "b8db8b5a4803da512159eb59286d9f79bdb9fb52ca3ce4036e1ce8dbe6921b32"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Overhead Crane

## 1. Technical Definition
A material handling machine that moves loads horizontally and vertically along a fixed overhead runway system.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-25.0 m/s horizontal speed, 0.1-1.0 m/s vertical speed, 1.0-500.0 kN lifting capacity**. Failure boundary: **Structural failure occurs at 1.5x rated load (750 kN for 500 kN crane), runway rail deflection exceeding 1/600 of span length, hoist motor temperature exceeding 155°C insulation class limit**, Mechanism: **Yield strength exceedance in structural steel (S355JR, 355 MPa yield), bearing fatigue life (L10) depletion at 1,000,000 cycles, electromagnetic torque saturation in AC induction motors beyond 150% rated torque**.

### 2.1 Analytical Physics Model
Governed by the **Frame Structural Deflection Analysis**:

> **Primary Equation**: $\delta = \frac{5 q L^4}{384 E I}$  
> **Engineering Impact**: Ensures structural stability for multi-stage machines.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| q | Uniform Load | Engineering Constant |
| E | Elastic Modulus | Engineering Constant |
| I | Moment of Inertia | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Hoist brake solenoid coil insulation breakdown at 1000V dielectric strength threshold | 8 | Emergency brake fails to engage during power loss, uncontrolled load descent | Dual redundant brake system with independent power sources, daily dielectric testing at 1500V |
| Runway rail joint misalignment exceeding 2 mm vertical gap | 8 | Wheel flange impact causes derailment at 0.8 m/s crossing speed | Continuous welded rail installation, ultrasonic testing at 2 MHz frequency for crack detection |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| primary_spec | Config-dependent | metric tons | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Bridge Girder](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/bridge-girder.md) `(Standalone System)`
- [End Trucks](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/end-trucks.md) `(Standalone System)`
- [Hoist Unit](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/hoist-unit.md) `(Standalone System)`
- [Trolley](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/trolley.md) `(Standalone System)`
- [Control System](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/control-system.md) `(Standalone System)`
- [Power Feed System](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/power-feed-system.md) `(Standalone System)`
- [Safety Devices](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/safety-devices.md) `(Standalone System)`
- [Cabin](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/cabin.md) `(Standalone System)`
- [Magnet System](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/magnet-system.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Hoist and Trolley Assembly**, **Runway Beam System**, **Electrical Control Panel**  
**Downstream Applications**: Steel Structures, Heavy Machinery Components, Large Fabricated Assemblies  

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

### Q: What materials are used in the construction of this overhead crane?
**A**: Our overhead cranes are constructed using high-grade Structural Steel and Alloy Steel components, ensuring durability and reliability in demanding industrial environments.

### Q: How do I determine the appropriate duty class for my application?
**A**: The duty class (FEM/ISO classification) depends on your operational intensity - we help assess load cycles, usage frequency, and environmental factors to recommend the optimal class for your machinery manufacturing needs.

### Q: What safety features are included with the overhead crane system?
**A**: Our cranes include comprehensive safety devices such as overload protection, emergency stop systems, limit switches, and optional cabin controls with visibility enhancements for operator safety.

## 6. Manufacturing Compliance
- ISO 8686-1:2012 - CRANES - DESIGN PRINCIPLES FOR LOADS AND LOAD COMBINATIONS
- ANSI/ASME B30.2-2021 - OVERHEAD AND GANTRY CRANES (TOP RUNNING BRIDGE, SINGLE OR MULTIPLE GIRDER, TOP RUNNING TROLLEY HOIST)
- DIN EN 15011:2011 - CRANES - BRIDGE AND GANTRY CRANES

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Overhead Crane](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/overhead-crane)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **10** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: OVERHEAD_CRANE | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: fbca5f3c
