---
title: "Granite Table/Base"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:GRANITE_TABLEBASE"
  data_integrity_hash: "59f4296fe8696361519a4c7982251397"
  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:GRANITE_TABLEBASE"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/granite-tablebase.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/granite-tablebase"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "Flatness tolerance: 0.001-0.005 mm/m, Surface roughness: Ra 0.2-0.8 μm, Temperature stability: ±0.5°C/hour"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 0.01
    unit: "mm"
    consequence: "Thermal expansion mismatch between granite (coefficient: 8×10⁻⁶/°C) and mounting components causes dimensional instability; surface micro-cracking from cyclic loading exceeding granite's compressive strength (170-250 MPa)"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Thermal shock from rapid ambient temperature change exceeding 5°C/hour"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install active thermal stabilization system with PID-controlled heating elements maintaining ±0.2°C"
  - node_2:
      trigger: "Resonant vibration at 25-40 Hz matching granite's natural frequency"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integrate tuned mass dampers with 85% critical damping at 32 Hz dominant mode"
bom_nodes:
  granite-slab:
    type: "component"
    urn: "URN:CNFX:ME:GRANITE_SLAB"
    interface_type: "physical-logic-coupled"
  leveling-feetadjusters:
    type: "part"
    urn: "URN:CNFX:ME:LEVELING_FEETADJUSTERS"
    interface_type: "physical-logic-coupled"
  tapped-holesgrid-pattern:
    type: "component"
    urn: "URN:CNFX:ME:TAPPED_HOLESGRID_PATTERN"
    interface_type: "physical-logic-coupled"
  vibration-isolation-pads-optional:
    type: "component"
    urn: "URN:CNFX:ME:VIBRATION_ISOLATION_PADS_OPTIONAL"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 8512-2:1990 - GRANITE SURFACE PLATES"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/ASME B89.3.7-2013 - GRANITE SURFACE PLATES"
    scope: "Verified Engineering Specification"
  - standard: "DIN 876-1:1986 - GRANITE SURFACE PLATES"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/granite-tablebase.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "8b40774634f297fef0dc1ad5fbb628b123dc23c59596403e137a301bede53369"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Granite Table/Base

## 1. Technical Definition
A precision granite platform that serves as the stable reference surface and mounting base for a Coordinate Measuring Machine (CMM).

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **Flatness tolerance: 0.001-0.005 mm/m, Surface roughness: Ra 0.2-0.8 μm, Temperature stability: ±0.5°C/hour**. Failure boundary: **Flatness deviation &gt;0.01 mm/m, Surface roughness &gt;Ra 1.6 μm, Thermal gradient &gt;2°C across surface**, Mechanism: **Thermal expansion mismatch between granite (coefficient: 8×10⁻⁶/°C) and mounting components causes dimensional instability; surface micro-cracking from cyclic loading exceeding granite's compressive strength (170-250 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 |
| :--- | :--- | :--- | :--- |
| Thermal shock from rapid ambient temperature change exceeding 5°C/hour | 8 | Surface flatness distortion &gt;0.008 mm/m due to non-uniform thermal expansion | Install active thermal stabilization system with PID-controlled heating elements maintaining ±0.2°C |
| Resonant vibration at 25-40 Hz matching granite's natural frequency | 8 | Measurement error amplification &gt;3 μm from structural resonance | Integrate tuned mass dampers with 85% critical damping at 32 Hz dominant mode |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Leveling Feet/Adjusters](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/leveling-feetadjusters.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Coordinate Measuring Machine (CMM)**, **Environmental Control System**, **Vibration Isolation System**  
**Downstream Applications**: Precision Machined Components, Aerospace Parts, Medical Device Components  

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

### Q: What type of granite is best for CMM tables and why?
**A**: Black granite like Gabbro is preferred for CMM tables due to its exceptional dimensional stability, low thermal expansion, and fine-grained structure that provides a smooth, wear-resistant surface ideal for precision measurement applications.

### Q: How does the grid pattern of tapped holes benefit CMM operation?
**A**: The grid pattern of tapped holes allows flexible fixturing and secure mounting of various CMM components and workpieces, enabling precise positioning and repeatable measurements while maintaining the granite's flatness integrity.

### Q: What are the advantages of vibration isolation pads on granite bases?
**A**: Vibration isolation pads reduce external vibrations from machinery and environmental sources, minimizing measurement errors and ensuring the CMM maintains sub-micron accuracy during critical inspection processes.

## 6. Manufacturing Compliance
- ISO 8512-2:1990 - GRANITE SURFACE PLATES
- ANSI/ASME B89.3.7-2013 - GRANITE SURFACE PLATES
- DIN 876-1:1986 - GRANITE SURFACE PLATES

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Granite Table/Base](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/granite-tablebase)**

### 🌐 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**: GRANITE_TABLEBASE | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 53e48a47
