---
title: "Fork Positioner"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:FORK_POSITIONER"
  data_integrity_hash: "c6e84a5b239ccb42f0432bbb42da5990"
  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:FORK_POSITIONER"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/fork-positioner.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/fork-positioner"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-300 mm horizontal adjustment, 0-20 MPa hydraulic pressure"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 25
    unit: "MPa"
    consequence: "Hydraulic seal failure due to elastomer extrusion at 25 MPa, mechanical deformation due to yield strength exceedance at 350 mm extension"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Hydraulic fluid contamination with 15 μm particles"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install 10 μm absolute filtration with differential pressure monitoring"
  - node_2:
      trigger: "Repeated cyclic loading at 0.5 Hz frequency"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Implement shot peening on weld zones to induce 400 MPa compressive residual stress"
bom_nodes:
  carriage-beam:
    type: "part"
    urn: "URN:CNFX:ME:CARRIAGE_BEAM"
    interface_type: "physical-logic-coupled"
  hydraulic-cylinder:
    type: "part"
    urn: "URN:CNFX:ME:HYDRAULIC_CYLINDER"
    interface_type: "physical-logic-coupled"
  fork-mounting-brackets:
    type: "component"
    urn: "URN:CNFX:ME:FORK_MOUNTING_BRACKETS"
    interface_type: "physical-logic-coupled"
  control-valve:
    type: "part"
    urn: "URN:CNFX:ME:CONTROL_VALVE"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 3691-4:2020 - INDUSTRIAL TRUCKS - SAFETY REQUIREMENTS AND VERIFICATION - PART 4: DRIVERLESS INDUSTRIAL TRUCKS AND THEIR SYSTEMS"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/ITSDF B56.5-2019 - SAFETY STANDARD FOR DRIVERLESS, AUTOMATIC GUIDED INDUSTRIAL VEHICLES AND AUTOMATED FUNCTIONS OF MANNED INDUSTRIAL VEHICLES"
    scope: "Verified Engineering Specification"
  - standard: "CE MARKING - MACHINERY DIRECTIVE 2006/42/EC FOR SAFETY OF MACHINERY"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/fork-positioner.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "f087608dc2d34ad4f76f395b7a369fb35ed9675eb4cbf6fe78644dbc5e18479d"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Fork Positioner

## 1. Technical Definition
A hydraulic or mechanical device that adjusts the horizontal spacing between forklift forks

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-300 mm horizontal adjustment, 0-20 MPa hydraulic pressure**. Failure boundary: **Hydraulic pressure exceeding 25 MPa causes seal rupture, mechanical adjustment exceeding 350 mm causes structural deformation**, Mechanism: **Hydraulic seal failure due to elastomer extrusion at 25 MPa, mechanical deformation due to yield strength exceedance at 350 mm extension**.

### 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 |
| :--- | :--- | :--- | :--- |
| Hydraulic fluid contamination with 15 μm particles | 8 | Spool valve seizure causing unresponsive positioning | Install 10 μm absolute filtration with differential pressure monitoring |
| Repeated cyclic loading at 0.5 Hz frequency | 8 | Fatigue crack initiation at fork mounting bracket weld toe | Implement shot peening on weld zones to induce 400 MPa compressive residual stress |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Carriage Beam](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/carriage-beam.md) `(Standalone System)`
- [Hydraulic Cylinder](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/hydraulic-cylinder.md) `(Standalone System)`
- [Control Valve](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/control-valve.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Hydraulic Power Unit**, **Forklift Mounting Bracket**, **Control Panel with Joystick**  
**Downstream Applications**: Custom Palletized Loads, Specialized Material Handling Systems, Adapted Forklift Configurations  

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

### Q: What materials are used in fork positioners?
**A**: Fork positioners are constructed from high-strength steel and alloy steel to withstand heavy loads and industrial environments.

### Q: How does a hydraulic fork positioner work?
**A**: Hydraulic fork positioners use a hydraulic cylinder and control valve system to precisely adjust horizontal fork spacing on forklift carriages.

### Q: What are the main components of a fork positioner?
**A**: Key components include the carriage beam, hydraulic cylinder, control valve, and fork mounting brackets for secure attachment and operation.

## 6. Manufacturing Compliance
- ISO 3691-4:2020 - INDUSTRIAL TRUCKS - SAFETY REQUIREMENTS AND VERIFICATION - PART 4: DRIVERLESS INDUSTRIAL TRUCKS AND THEIR SYSTEMS
- ANSI/ITSDF B56.5-2019 - SAFETY STANDARD FOR DRIVERLESS, AUTOMATIC GUIDED INDUSTRIAL VEHICLES AND AUTOMATED FUNCTIONS OF MANNED INDUSTRIAL VEHICLES
- CE MARKING - MACHINERY DIRECTIVE 2006/42/EC FOR SAFETY OF MACHINERY

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

### 🌐 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**: FORK_POSITIONER | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: d6b2c757
