---
title: "Heavy-Duty Rolling Mill Stand"
industry: "Iron and Steel Basic Production"
verification_protocol:
  urn: "URN:CNFX:ME:HEAVY_DUTY_ROLLING_MILL_STAND"
  data_integrity_hash: "eaae11bf1a2fac82e6b4e09985e8b845"
  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:HEAVY_DUTY_ROLLING_MILL_STAND"
  data_source_uri: "https://cnfx.com/llms/industry/iron-steel-basic-production/product/heavy-duty-rolling-mill-stand.md"
  official_resource_url: "https://cnfx.com/industry/iron-steel-basic-production/product/heavy-duty-rolling-mill-stand"
  is_verified_logic: true
attributes:
  roll_force:
    status: "config-dependent"
    typical_range: "Rolling force: 10-40 MN, Rolling speed: 0.5-6.0 m/s, Roll gap: 0.5-50 mm, Temperature: 800-1250°C"
    unit: "MN"
  motor_power:
    status: "config-dependent"
    typical_range: "Rolling force: 10-40 MN, Rolling speed: 0.5-6.0 m/s, Roll gap: 0.5-50 mm, Temperature: 800-1250°C"
    unit: "kW"
  roll_diameter:
    status: "config-dependent"
    typical_range: "Rolling force: 10-40 MN, Rolling speed: 0.5-6.0 m/s, Roll gap: 0.5-50 mm, Temperature: 800-1250°C"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 7
    unit: "cycles"
    consequence: "Hertzian contact stress exceeding 1500 MPa in roll neck bearings causes subsurface fatigue cracking, Thermal gradient of 300°C across roll face induces compressive yielding at 450 MPa"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Roll eccentricity exceeding 0.05 mm due to uneven thermal expansion"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install hydraulic gap control with 0.01 mm resolution and adaptive roll bending compensation"
  - node_2:
      trigger: "Lubricant film breakdown at Sommerfeld number &lt; 0.001"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Implement forced oil circulation with 40 L/min flow rate and 40 μm filtration"
bom_nodes:
  mill-housing:
    type: "part"
    urn: "URN:CNFX:ME:MILL_HOUSING"
    interface_type: "physical-logic-coupled"
  work-rolls:
    type: "component"
    urn: "URN:CNFX:ME:WORK_ROLLS"
    interface_type: "physical-logic-coupled"
  roll-bearings:
    type: "component"
    urn: "URN:CNFX:ME:ROLL_BEARINGS"
    interface_type: "physical-logic-coupled"
  screwdown-mechanism:
    type: "part"
    urn: "URN:CNFX:ME:SCREWDOWN_MECHANISM"
    interface_type: "physical-logic-coupled"
  roll-chocks:
    type: "part"
    urn: "URN:CNFX:ME:ROLL_CHOCKS"
    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/iron-steel-basic-production/product/heavy-duty-rolling-mill-stand.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "95a6612902ac28f3aa454fc0bd8c1a00c0cadd9688f8de5f5079d494877d5a5a"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Heavy-Duty Rolling Mill Stand

## 1. Technical Definition
Industrial machine for shaping steel through compression between rotating rolls

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **Rolling force: 10-40 MN, Rolling speed: 0.5-6.0 m/s, Roll gap: 0.5-50 mm, Temperature: 800-1250°C**. Failure boundary: **Roll neck bearing fatigue at 10^7 cycles under 25 MN load, Roll deflection exceeding 0.15 mm/m at 35 MN, Spindle torque exceeding 2.5 MN·m**, Mechanism: **Hertzian contact stress exceeding 1500 MPa in roll neck bearings causes subsurface fatigue cracking, Thermal gradient of 300°C across roll face induces compressive yielding at 450 MPa**.

### 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 |
| :--- | :--- | :--- | :--- |
| Roll eccentricity exceeding 0.05 mm due to uneven thermal expansion | 8 | Periodic thickness variation of 0.3 mm in strip product | Install hydraulic gap control with 0.01 mm resolution and adaptive roll bending compensation |
| Lubricant film breakdown at Sommerfeld number &lt; 0.001 | 8 | Roll neck bearing seizure at 120°C operating temperature | Implement forced oil circulation with 40 L/min flow rate and 40 μm filtration |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| roll_force | Config-dependent | MN | Verified |
| motor_power | Config-dependent | kW | Verified |
| roll_diameter | Config-dependent | mm | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Mill Housing](https://cnfx.com/llms/industry/basic-metal-manufacturing/product/mill-housing.md) `(Standalone System)`
- [Screwdown Mechanism](https://cnfx.com/llms/industry/basic-metal-manufacturing/product/screwdown-mechanism.md) `(Standalone System)`
- [Roll Chocks](https://cnfx.com/llms/industry/basic-metal-manufacturing/product/roll-chocks.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Reheating Furnace**, **Roller Conveyor System**, **Cooling Bed**  
**Downstream Applications**: Steel Plates, Structural Beams, Railroad Rails  

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

### Q: What is the maximum rolling force this heavy-duty rolling mill stand can handle?
**A**: This heavy-duty rolling mill stand is designed to handle a maximum rolling force measured in meganewtons (MN), suitable for industrial steel shaping applications in basic iron and steel production.

### Q: What materials are used in the construction of this rolling mill stand?
**A**: The rolling mill stand features a durable cast steel housing, forged alloy steel rolls for strength, high-strength bolts, bronze bearings for smooth operation, and hardened gear components for longevity.

### Q: How is the roll gap adjusted on this industrial rolling mill stand?
**A**: The roll gap is precisely adjusted using a screwdown mechanism, allowing for fine control over the compression between rotating rolls to shape steel according to specific production requirements.

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

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Heavy-Duty Rolling Mill Stand](https://cnfx.com/industry/iron-steel-basic-production/product/heavy-duty-rolling-mill-stand)**

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

> **Reference ID**: HEAVY_DUTY_ROLLING_MILL_STAND | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 0ee00ab9
