---
title: "Web Tension Control Unit"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:WEB_TENSION_CONTROL_UNIT"
  data_integrity_hash: "6c481e661a39dbd6980745ce0e842e3b"
  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:WEB_TENSION_CONTROL_UNIT"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/web-tension-control-unit.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/web-tension-control-unit"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-15.0 N/mm² tension range, 0.1-5.0 m/s web speed, 50-2000 mm web width"
    unit: "N/m"
engineering_limits:
  max_safe_operating_point:
    value: 18.0
    unit: "N"
    consequence: "Hooke's Law elastic limit violation (σ &gt; σ_yield = 18.0 N/mm²) or Euler buckling instability at critical tension (σ_critical = 0.3 N/mm² for 0.1 mm foil thickness)"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Load cell drift exceeding ±0.5% FS due to Wheatstone bridge thermal coefficient mismatch (α = 50 ppm/°C)"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Dual-redundant load cells with temperature-compensated strain gauges (α = 1 ppm/°C) and Kalman filter sensor fusion"
  - node_2:
      trigger: "Pneumatic actuator seal degradation at 10⁷ cycles due to 1.0 MPa pressure cycling fatigue"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "PTFE-coated polyurethane seals with 10⁹ cycle fatigue life at 2.0 MPa, monitored by integrated pressure decay sensors"
bom_nodes:
  tension-sensor:
    type: "part"
    urn: "URN:CNFX:ME:TENSION_SENSOR"
    interface_type: "physical-logic-coupled"
  control-module:
    type: "device"
    urn: "URN:CNFX:ME:CONTROL_MODULE"
    interface_type: "physical-logic-coupled"
  brakedrive-unit:
    type: "part"
    urn: "URN:CNFX:ME:BRAKEDRIVE_UNIT"
    interface_type: "physical-logic-coupled"
  guide-rollers:
    type: "component"
    urn: "URN:CNFX:ME:GUIDE_ROLLERS"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
  - standard: "CE MARKING - MACHINERY DIRECTIVE 2006/42/EC"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/web-tension-control-unit.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "56b5725c2ba0fa868a4d7c5c5645e058e78f6f705b4ae4b4ca8bc0b7d7b3c772"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Web Tension Control Unit

## 1. Technical Definition
A precision control system that maintains consistent tension in moving electrode foil during coating processes.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-15.0 N/mm² tension range, 0.1-5.0 m/s web speed, 50-2000 mm web width**. Failure boundary: **Tension exceeds 18.0 N/mm² causing permanent foil deformation, or drops below 0.3 N/mm² causing web flutter and coating defects**, Mechanism: **Hooke's Law elastic limit violation (σ &gt; σ_yield = 18.0 N/mm²) or Euler buckling instability at critical tension (σ_critical = 0.3 N/mm² for 0.1 mm foil thickness)**.

### 2.1 Analytical Physics Model
Governed by the **Harmonic Vibration Force Generation**:

> **Primary Equation**: $F_e = m \cdot r \cdot \omega^2 \sin(\omega t)$  
> **Engineering Impact**: Calculates centrifugal force for vibratory sifters/feeders.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| m | Eccentric Mass | Engineering Constant |
| r | Radius | Engineering Constant |
| \omega | Angular Frequency | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Load cell drift exceeding ±0.5% FS due to Wheatstone bridge thermal coefficient mismatch (α = 50 ppm/°C) | 8 | Tension control error of ±7.5 N/mm² causing coating thickness variation &gt; ±10% | Dual-redundant load cells with temperature-compensated strain gauges (α = 1 ppm/°C) and Kalman filter sensor fusion |
| Pneumatic actuator seal degradation at 10⁷ cycles due to 1.0 MPa pressure cycling fatigue | 8 | Air leakage rate &gt; 0.5 L/min causing 0.8 second response delay and ±2.0 N/mm² tension oscillation | PTFE-coated polyurethane seals with 10⁹ cycle fatigue life at 2.0 MPa, monitored by integrated pressure decay sensors |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Tension Sensor](https://cnfx.com/llms/industry/textile-manufacturing/product/tension-sensor.md) `(Standalone System)`
- [Control Module](https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/control-module.md) `(Standalone System)`
- [Brake/Drive Unit](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/brakedrive-unit.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Electrode Foil Unwinder**, **Coating Application System**, **Electrode Foil Rewinder**  
**Downstream Applications**: Lithium-ion Battery Electrodes, Capacitor Foils, Flexible Printed Circuit Boards  

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

### Q: What industries use this web tension control unit?
**A**: Primarily used in machinery and equipment manufacturing for electrode foil coating processes in battery production, capacitor manufacturing, and other precision coating applications.

### Q: How does the ceramic-coated roller improve performance?
**A**: Ceramic-coated rollers provide superior wear resistance, reduce friction, prevent material contamination, and maintain consistent tension control even in high-temperature coating environments.

### Q: What maintenance does the tension control unit require?
**A**: Minimal maintenance is required due to stainless steel construction and precision bearings. Regular inspection of rollers, sensor calibration checks, and electronic component verification are recommended quarterly.

## 6. Manufacturing Compliance
- ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS
- CE MARKING - MACHINERY DIRECTIVE 2006/42/EC

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Web Tension Control Unit](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/web-tension-control-unit)**

### 🌐 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**: WEB_TENSION_CONTROL_UNIT | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 402e50ad
