---
title: "Vertical Positioning Actuator"
industry: "Basic Metal Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:VERTICAL_POSITIONING_ACTUATOR"
  data_integrity_hash: "de873b5b246f92422c6c9a25bb8d3be1"
  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:VERTICAL_POSITIONING_ACTUATOR"
  data_source_uri: "https://cnfx.com/llms/industry/basic-metal-manufacturing/product/vertical-positioning-actuator.md"
  official_resource_url: "https://cnfx.com/industry/basic-metal-manufacturing/product/vertical-positioning-actuator"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-1500 mm vertical travel at 100-500 mm/s velocity with 0.05 mm positioning accuracy"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 0.1
    unit: "mm"
    consequence: "Hertzian contact stress exceeding 1800 MPa at ball screw/ball nut interface causing plastic deformation and wear particle generation"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Servomotor encoder signal loss for &gt;100 ms"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Dual redundant absolute encoders with cross-validation logic and fail-safe brake engagement"
  - node_2:
      trigger: "Thermal expansion mismatch between aluminum actuator housing (23×10⁻⁶/°C) and steel ball screw (11×10⁻⁶/°C)"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Temperature-compensated preload adjustment mechanism with PT100 sensors at three axial positions"
bom_nodes:
  drive-motor:
    type: "part"
    urn: "URN:CNFX:ME:DRIVE_MOTOR"
    interface_type: "physical-logic-coupled"
  ball-screw-lead-screw:
    type: "part"
    urn: "URN:CNFX:ME:BALL_SCREW_LEAD_SCREW"
    interface_type: "physical-logic-coupled"
  linear-guide-bearing-housing:
    type: "part"
    urn: "URN:CNFX:ME:LINEAR_GUIDE_BEARING_HOUSING"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/B93.5M-1985 HYDRAULIC FLUID POWER - CYLINDERS"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/basic-metal-manufacturing/product/vertical-positioning-actuator.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "b2033013399ee2b032a328bdb3b190fe314f36d828e7e7884adc9b7bfe94f47f"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Vertical Positioning Actuator

## 1. Technical Definition
A precision electromechanical device that controls the vertical movement of electrodes in an electric arc furnace.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-1500 mm vertical travel at 100-500 mm/s velocity with 0.05 mm positioning accuracy**. Failure boundary: **Ball screw backlash exceeding 0.1 mm or linear guideway deflection exceeding 0.02 mm/m**, Mechanism: **Hertzian contact stress exceeding 1800 MPa at ball screw/ball nut interface causing plastic deformation and wear particle generation**.

### 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 |
| :--- | :--- | :--- | :--- |
| Servomotor encoder signal loss for &gt;100 ms | 8 | Position control loop instability causing 5-10 mm overshoot oscillations | Dual redundant absolute encoders with cross-validation logic and fail-safe brake engagement |
| Thermal expansion mismatch between aluminum actuator housing (23×10⁻⁶/°C) and steel ball screw (11×10⁻⁶/°C) | 8 | Axial preload loss at 80°C temperature differential causing 0.15 mm positioning drift | Temperature-compensated preload adjustment mechanism with PT100 sensors at three axial positions |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Drive Motor](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/drive-motor.md) `(Standalone System)`
- [Ball Screw / Lead Screw](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/ball-screw-lead-screw.md) `(Standalone System)`
- [Linear Guide / Bearing Housing](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/linear-guide-bearing-housing.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Electric Arc Furnace Power Supply System**, **Cooling Water Circulation System**, **Hydraulic Power Unit**  
**Downstream Applications**: Steel Ingots, Molten Steel for Casting, Alloy Steel Products  

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

### Q: What is the primary function of this vertical positioning actuator in basic metal manufacturing?
**A**: This actuator precisely controls the vertical movement of electrodes in electric arc furnaces, ensuring optimal arc length for efficient metal melting and temperature control during steel production.

### Q: What materials are used in the construction of this vertical positioning actuator?
**A**: The actuator is constructed from durable alloy steel and high-strength cast iron components, providing the necessary strength and heat resistance required for the demanding environment of electric arc furnace operations.

### Q: What are the key components in the bill of materials for this vertical positioning actuator?
**A**: The main components include a ball screw or lead screw for precise linear motion, a drive motor for power, and linear guides or bearing housings to ensure smooth, stable vertical movement of the electrodes.

## 6. Manufacturing Compliance
- ISO 9001:2015 QUALITY MANAGEMENT SYSTEMS
- ANSI/B93.5M-1985 HYDRAULIC FLUID POWER - CYLINDERS

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Vertical Positioning Actuator](https://cnfx.com/industry/basic-metal-manufacturing/product/vertical-positioning-actuator)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **3** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: VERTICAL_POSITIONING_ACTUATOR | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: cb925c0f
