Precision Granite Metrology Components
Custom-Fabricated Granite Bases, Beams & Columns for Measurement Systems
Product Definition
We manufacture structural granite components exclusively for high-precision measurement equipment. Specializing in:
- Granite Reference Bases
- Granite Support Columns
- Granite Bridge Beams
Material Advantages
Black Galaxy Granite (G350/G650 Grades):
| Property | Metric Value | Industry Benefit |
|---|---|---|
| Thermal Stability | 0.003 mm/m·°C Expansion | 30× More Stable Than Steel |
| Vibration Damping | Q-factor <100 | 10× Better Than Aluminum |
| Surface Hardness | Mohs 6-7 | 5× Longer Service Life vs Coated Metals |
| Micro-Deformation Res. | <0.05 MPa Residual Stress | Maintains Flatness Without Stress Relieving |
Technical Specifications
| Parameter | Specification |
|---|---|
| Standard Sizes | 200×200mm to 4000×2500mm |
| Geometric Accuracy | ±3μm/m (ISO 10791-1) |
| Surface Flatness | ≤3μm/m² (Laser Verified) |
| Thread Tolerance | 6H (ISO 965-1 Internal) |
| Surface Finish Options | Ground (Ra≤0.8μm), Super-finished (Ra≤0.4μm) |
| Lead Time | 15-45 Days (DFM Approved Designs) |
Custom Fabrication Process
- Drawing Submission
- Accepted Formats: .dwg .step .iges .sldprt
- DFM Analysis
- Free Technical Review (48h Response)
- Material Selection
- G350 (Standard Grade)
- G650 (Ultra-Precision Grade)
- 5-Axis CNC Machining
- ≤2μm Positioning Repeatability
- Quality Certification
- Includes:
- 3D Laser Scanning Report
- Thermal Cycling Test Certificate
- Surface Stylus Profiling Data
- Includes:
Key Applications
- Coordinate Measuring Machine (CMM) Foundations
- Semiconductor Wafer Inspection Stages
- Optical Comparator Reference Platforms
- Laser Tracker Mounting Bases
- Roundness Tester Structural Frames
Competitive Differentiation
✓ Pure Granite Focus – No metalworking distractions
✓ Prototype-Friendly – No MOQ, 1-piece orders accepted
✓ Dual Certification – ISO 9001:2015 & AS9100D
✓ Global Shipping – Vibration-Isolated Packaging System
Why Partner With Us?
- 50+ Years Combined Granite Machining Experience
- 0.25μm/m Achievable Flatness (G650 Grade)
- 72-Hour Thermal Stabilization Process
- Dedicated Metrology-Grade Workshop (20±0.5°C)