---
title: "Trolley"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:TROLLEY"
  data_integrity_hash: "260e40a504c2f7cbe397d3595513a2a2"
  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:TROLLEY"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/trolley.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/trolley"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-2.5 m/s travel speed, 0-100 kN load capacity, -40°C to +60°C ambient temperature"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 120
    unit: "°C"
    consequence: "Wheel-rail contact fatigue (Hertzian stress &gt; 1500 MPa), bearing lubricant thermal breakdown at 120°C, motor insulation class F thermal degradation at 155°C"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Rail joint misalignment exceeding 2 mm vertical gap"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Continuous welded rail with laser-aligned joints, tapered wheel profiles with 1:20 conicity"
  - node_2:
      trigger: "Brake coil insulation breakdown at 155°C thermal class limit"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Class H insulation (180°C rating), redundant spring-applied brakes with independent power supplies"
bom_nodes:
  trolley-frame:
    type: "part"
    urn: "URN:CNFX:ME:TROLLEY_FRAME"
    interface_type: "physical-logic-coupled"
  drive-wheels:
    type: "part"
    urn: "URN:CNFX:ME:DRIVE_WHEELS"
    interface_type: "physical-logic-coupled"
  guide-wheels:
    type: "component"
    urn: "URN:CNFX:ME:GUIDE_WHEELS"
    interface_type: "physical-logic-coupled"
  trolley-drive-motor:
    type: "part"
    urn: "URN:CNFX:ME:TROLLEY_DRIVE_MOTOR"
    interface_type: "physical-logic-coupled"
  gearbox:
    type: "part"
    urn: "URN:CNFX:ME:GEARBOX"
    interface_type: "physical-logic-coupled"
  brake-system:
    type: "part"
    urn: "URN:CNFX:ME:BRAKE_SYSTEM"
    interface_type: "physical-logic-coupled"
  trolley-hook-block:
    type: "part"
    urn: "URN:CNFX:ME:TROLLEY_HOOK_BLOCK"
    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/trolley.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "fad30046d1d5f1cc134c02bbed1edf69d3e1b8cf8137767998a79b85c04e4985"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Trolley

## 1. Technical Definition
A movable carriage that travels along the horizontal jib of a tower crane to position loads.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-2.5 m/s travel speed, 0-100 kN load capacity, -40°C to +60°C ambient temperature**. Failure boundary: **Wheel bearing temperature exceeds 120°C, rail deflection exceeds 5 mm/m, motor current exceeds 150% rated for 30 seconds**, Mechanism: **Wheel-rail contact fatigue (Hertzian stress &gt; 1500 MPa), bearing lubricant thermal breakdown at 120°C, motor insulation class F thermal degradation at 155°C**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Rail joint misalignment exceeding 2 mm vertical gap | 8 | Wheel impact loading &gt; 3g acceleration causing bearing brinelling | Continuous welded rail with laser-aligned joints, tapered wheel profiles with 1:20 conicity |
| Brake coil insulation breakdown at 155°C thermal class limit | 8 | Electromagnetic brake fails to engage during emergency stop | Class H insulation (180°C rating), redundant spring-applied brakes with independent power supplies |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Trolley Frame](https://cnfx.com/llms/industry/fabricated-metal-product-manufacturing/product/trolley-frame.md) `(Standalone System)`
- [Drive Wheels](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/drive-wheels.md) `(Standalone System)`
- [Trolley Drive Motor](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/trolley-drive-motor.md) `(Standalone System)`
- [Gearbox](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/gearbox.md) `(Standalone System)`
- [Brake System](https://cnfx.com/llms/industry/other-transport-equipment-manufacturing/product/brake-system.md) `(Standalone System)`
- [Trolley Hook Block](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/trolley-hook-block.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Tower Crane**, **Load Hoist System**, **Crane Control Console**  
**Downstream Applications**: Precast Concrete Elements, Steel Structural Components, Construction Module Assemblies  

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

### Q: What materials are used in manufacturing tower crane trolleys?
**A**: Our trolleys are constructed from high-strength steel and alloy steel for maximum durability and load-bearing capacity in demanding industrial environments.

### Q: How does the trolley positioning system work on tower cranes?
**A**: The trolley travels along the horizontal jib using drive wheels powered by a motor and gearbox system, with guide wheels ensuring smooth movement and precise load placement.

### Q: What safety features are included in the trolley system?
**A**: Each trolley includes a comprehensive brake system, reinforced frame construction, and secure hook block assembly to ensure safe operation during material handling.

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

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

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **7** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: TROLLEY | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: c483e1c9
