---
title: "Derrick/Mast"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:DERRICKMAST"
  data_integrity_hash: "faa9a599bd406b8afcf304686c3c43ae"
  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:DERRICKMAST"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/derrickmast.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/derrickmast"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-1.5 MN·m bending moment, 0-900 kN axial load, 0-50 m/s wind speed"
    unit: "m"
engineering_limits:
  max_safe_operating_point:
    value: 572
    unit: "Grade"
    consequence: "Plastic deformation from combined bending-axial loading exceeding von Mises yield criterion, or elastic instability from compressive stress exceeding critical buckling load"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Corrosion-induced wall thickness reduction below 12.7 mm in tubular sections"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Cathodic protection system with -0.85 V vs. Cu/CuSO4 reference electrode and 6-month ultrasonic thickness testing"
  - node_2:
      trigger: "Resonant vibration at 0.8-1.2 Hz matching natural frequency of 45 m mast"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Tuned mass damper system with 2% critical damping ratio and strain gauge monitoring at 100 Hz sampling rate"
bom_nodes:
  legs:
    type: "component"
    urn: "URN:CNFX:ME:LEGS"
    interface_type: "physical-logic-coupled"
  bracing:
    type: "component"
    urn: "URN:CNFX:ME:BRACING"
    interface_type: "physical-logic-coupled"
  crown-block-support:
    type: "component"
    urn: "URN:CNFX:ME:CROWN_BLOCK_SUPPORT"
    interface_type: "physical-logic-coupled"
  monkey-board:
    type: "component"
    urn: "URN:CNFX:ME:MONKEY_BOARD"
    interface_type: "physical-logic-coupled"
  v-door:
    type: "component"
    urn: "URN:CNFX:ME:V_DOOR"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 13534:2000 - PETROLEUM AND NATURAL GAS INDUSTRIES - DRILLING AND PRODUCTION EQUIPMENT - INSPECTION, MAINTENANCE, REPAIR AND REMANUFACTURE OF HOISTING EQUIPMENT"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/derrickmast.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "8b9f2c00405b8d8e279c637173da5d61e9c920b63569dec1b395b459b8320a96"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Derrick/Mast

## 1. Technical Definition
Vertical structural framework that supports the hoisting system and provides height for drilling operations.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-1.5 MN·m bending moment, 0-900 kN axial load, 0-50 m/s wind speed**. Failure boundary: **Yield stress of ASTM A572 Grade 50 steel (345 MPa) or Euler buckling load at slenderness ratio &gt;120**, Mechanism: **Plastic deformation from combined bending-axial loading exceeding von Mises yield criterion, or elastic instability from compressive stress exceeding critical buckling load**.

### 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 |
| :--- | :--- | :--- | :--- |
| Corrosion-induced wall thickness reduction below 12.7 mm in tubular sections | 8 | Local buckling at corroded section under 650 kN compressive load | Cathodic protection system with -0.85 V vs. Cu/CuSO4 reference electrode and 6-month ultrasonic thickness testing |
| Resonant vibration at 0.8-1.2 Hz matching natural frequency of 45 m mast | 8 | Fatigue crack initiation at weld toes under 10^7 cycles at 150 MPa stress range | Tuned mass damper system with 2% critical damping ratio and strain gauge monitoring at 100 Hz sampling rate |

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

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

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Drawworks**, **Mud Pump**, **Rotary Table**  
**Downstream Applications**: Oil Wells, Water Wells, Geothermal Wells  

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

### Q: What materials are used in manufacturing derrick/mast structures?
**A**: Derrick/mast structures are primarily constructed from high-strength structural steel and alloy steel to withstand extreme loads and harsh drilling environments.

### Q: What are the key components of a drilling derrick/mast?
**A**: Essential components include legs for vertical support, bracing for stability, crown block support for hoisting systems, monkey board for pipe handling, and V-door for equipment access.

### Q: How does a derrick/mast support drilling operations?
**A**: The derrick/mast provides the necessary height and structural framework to support hoisting systems, enabling safe and efficient lifting of drill pipes, casings, and other heavy equipment during drilling operations.

## 6. Manufacturing Compliance
- ISO 13534:2000 - PETROLEUM AND NATURAL GAS INDUSTRIES - DRILLING AND PRODUCTION EQUIPMENT - INSPECTION, MAINTENANCE, REPAIR AND REMANUFACTURE OF HOISTING EQUIPMENT

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Derrick/Mast](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/derrickmast)**

### 🌐 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**: DERRICKMAST | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: a4405f85
