---
title: "Straightening Roll"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:STRAIGHTENING_ROLL"
  data_integrity_hash: "7cf1927803e8bb18672fde90f7744684"
  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:STRAIGHTENING_ROLL"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/straightening-roll.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/straightening-roll"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "50-200 kN radial load, 0.1-2.0 mm material thickness, 5-30 m/min linear speed"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 250
    unit: "MPa"
    consequence: "Hertzian contact stress exceeding material fatigue limit (S-N curve at 10^7 cycles), abrasive wear reducing effective diameter below tolerance, thermal expansion mismatch causing bearing seizure at 120°C"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Cyclic bending stress exceeding 180 MPa at 10 Hz frequency"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Case hardening to 60-62 HRC surface hardness with 1.5 mm case depth, shot peening for compressive residual stress of -400 MPa"
  - node_2:
      trigger: "Misalignment exceeding 0.05 mm/m between roll axis and material path"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Hydrostatic bearing support with 0.001 mm positional accuracy, laser alignment system with 0.01 mm resolution feedback"
bom_nodes:
  roll-body:
    type: "component"
    urn: "URN:CNFX:ME:ROLL_BODY"
    interface_type: "physical-logic-coupled"
  bearing-housing:
    type: "component"
    urn: "URN:CNFX:ME:BEARING_HOUSING"
    interface_type: "physical-logic-coupled"
  surface-coating:
    type: "component"
    urn: "URN:CNFX:ME:SURFACE_COATING"
    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/straightening-roll.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "e234df41212fc7fec099a8e01b51acde728d6543dd51fbf7a10d8bfc4a66870c"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Straightening Roll

## 1. Technical Definition
A cylindrical component within a straightening roller bank that applies pressure to flatten or correct the shape of materials.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **50-200 kN radial load, 0.1-2.0 mm material thickness, 5-30 m/min linear speed**. Failure boundary: **Material yield strength exceeded at 250 MPa stress, surface hardness reduction below 55 HRC, radial deflection exceeding 0.5 mm**, Mechanism: **Hertzian contact stress exceeding material fatigue limit (S-N curve at 10^7 cycles), abrasive wear reducing effective diameter below tolerance, thermal expansion mismatch causing bearing seizure at 120°C**.

### 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 |
| :--- | :--- | :--- | :--- |
| Cyclic bending stress exceeding 180 MPa at 10 Hz frequency | 8 | Surface spalling and micro-pitting propagation | Case hardening to 60-62 HRC surface hardness with 1.5 mm case depth, shot peening for compressive residual stress of -400 MPa |
| Misalignment exceeding 0.05 mm/m between roll axis and material path | 8 | Edge loading causing localized wear and material tracking deviation | Hydrostatic bearing support with 0.001 mm positional accuracy, laser alignment system with 0.01 mm resolution feedback |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Material Handling System**, **Hydraulic Power Unit**, **Control Panel with PLC**  
**Downstream Applications**: Steel Sheets, Aluminum Coils, Metal Profiles  

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

### Q: What materials are used in straightening rolls for durability?
**A**: Straightening rolls are typically made from alloy steel, hardened steel, or carbide-coated steel to withstand high pressure and wear in industrial applications.

### Q: How does a straightening roll correct material shape?
**A**: As part of a straightening roller bank, it applies controlled pressure to flatten or align materials like metal sheets, bars, or strips, ensuring uniform thickness and shape.

### Q: What are the key components in a straightening roll assembly?
**A**: The main components include the roll body for applying pressure, bearing housing for stability and rotation, and surface coating to enhance wear resistance and performance.

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

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

### 🌐 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**: STRAIGHTENING_ROLL | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 0021afb6
