---
title: "Load Moment Indicator"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:LOAD_MOMENT_INDICATOR"
  data_integrity_hash: "057f43607d7f56fb2b9b4edddae19a45"
  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:LOAD_MOMENT_INDICATOR"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/load-moment-indicator.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/load-moment-indicator"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-5000 kNÂ·m"
    unit: "kNÂ·m"
engineering_limits:
  max_safe_operating_point:
    value: 5500
    unit: "kNÂ"
    consequence: "Shear stress exceeding 250 MPa in strain gauge mounting points due to Hooke's Law elastic limit violation (Ïƒ = EÂ·Îµ where E = 210 GPa for steel)"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Moisture ingress exceeding 85% RH for &gt;72 hours"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "IP67-rated hermetic sealing with desiccant packs in enclosure"
  - node_2:
      trigger: "Electromagnetic interference from 400V AC motor drives at &lt;1m distance"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Shielded twisted-pair cabling with ferrite cores and 2mm aluminum Faraday cage"
bom_nodes:
  load-sensor:
    type: "part"
    urn: "URN:CNFX:ME:LOAD_SENSOR"
    interface_type: "physical-logic-coupled"
  angleradius-sensor:
    type: "part"
    urn: "URN:CNFX:ME:ANGLERADIUS_SENSOR"
    interface_type: "physical-logic-coupled"
  processing-unit-cpu:
    type: "part"
    urn: "URN:CNFX:ME:PROCESSING_UNIT_CPU"
    interface_type: "physical-logic-coupled"
  display-unit:
    type: "part"
    urn: "URN:CNFX:ME:DISPLAY_UNIT"
    interface_type: "physical-logic-coupled"
  alarm-system:
    type: "part"
    urn: "URN:CNFX:ME:ALARM_SYSTEM"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 4309:2010 (CRANES - WIRE ROPES - CARE AND MAINTENANCE, INSPECTION AND DISCARD)"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/ASME B30.5-2021 (MOBILE AND LOCOMOTIVE CRANES)"
    scope: "Verified Engineering Specification"
  - standard: "DIN 15020-1:1974 (CRANES; PRINCIPLES RELATING TO ROPE DRIVES; CALCULATION AND CONSTRUCTION)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/load-moment-indicator.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "f8bd9bb4cb2bdb61002562c7381ee23a7186dd2939f3f133270f2fc366bdbf13"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Load Moment Indicator

## 1. Technical Definition
A safety device that monitors and displays the load moment (load Ã— radius) of a luffing jib crane in real-time.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-5000 kNÂ·m**. Failure boundary: **5500 kNÂ·m load moment sustained for &gt;30 seconds**, Mechanism: **Shear stress exceeding 250 MPa in strain gauge mounting points due to Hooke's Law elastic limit violation (Ïƒ = EÂ·Îµ where E = 210 GPa for steel)**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Moisture ingress exceeding 85% RH for &gt;72 hours | 8 | Strain gauge Wheatstone bridge circuit short circuit | IP67-rated hermetic sealing with desiccant packs in enclosure |
| Electromagnetic interference from 400V AC motor drives at &lt;1m distance | 8 | Analog-to-digital converter signal corruption &gt;5% error | Shielded twisted-pair cabling with ferrite cores and 2mm aluminum Faraday cage |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Load Sensor](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/load-sensor.md) `(Standalone System)`
- [Angle/Radius Sensor](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/angleradius-sensor.md) `(Standalone System)`
- [Processing Unit (CPU)](https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/processing-unit-cpu.md) `(Standalone System)`
- [Display Unit](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/display-unit.md) `(Standalone System)`
- [Alarm System](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/alarm-system.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Luffing Jib Crane**, **Load Cell System**, **Crane Control Panel**  
**Downstream Applications**: Construction Projects, Heavy Equipment Assembly, Infrastructure Components  

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

### Q: What is a load moment indicator and why is it important for crane safety?
**A**: A load moment indicator monitors the load moment (load Ã— radius) of a crane in real-time, preventing dangerous overload conditions that could lead to tipping or structural failure, making it essential for workplace safety compliance.

### Q: How does the load moment indicator work with luffing jib cranes?
**A**: It uses integrated load and angle/radius sensors to calculate the exact load moment as the crane operates, displaying real-time data and triggering alarms when approaching or exceeding safe limits.

### Q: What maintenance is required for the load moment indicator system?
**A**: Regular calibration of sensors, inspection of stainless steel housing and polycarbonate display for damage, and software updates for the processing unit ensure reliable performance in industrial environments.

## 6. Manufacturing Compliance
- ISO 4309:2010 (CRANES - WIRE ROPES - CARE AND MAINTENANCE, INSPECTION AND DISCARD)
- ANSI/ASME B30.5-2021 (MOBILE AND LOCOMOTIVE CRANES)
- DIN 15020-1:1974 (CRANES; PRINCIPLES RELATING TO ROPE DRIVES; CALCULATION AND CONSTRUCTION)

---
### ðŸ› ï¸ Engineering Resource Access
ðŸ”— **[Full Specification: Load Moment Indicator](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/load-moment-indicator)**

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

> **Reference ID**: LOAD_MOMENT_INDICATOR | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 2ac52769
