UNPARALLELED LTD is one of the leading manufacturers and suppliers of granite gantry system in China. With abundant experience, we warmly welcome you to buy advanced granite gantry system made in China here from our factory. We also accept custom orders.
Built for Stability Where Microns Matter
When machine accuracy reaches the micron level, even the smallest vibration or thermal shift becomes a problem.
This is where the UNPARALLELED® precision granite machine base stands apart.
Crafted from high-density black granite (~3100 kg/m³), this integrated base and gantry structure provides unmatched rigidity, vibration damping, and long-term dimensional stability-making it the preferred choice for high-end equipment manufacturers.
Technical Specifications
| Parameter | Specification |
|---|---|
| Material | UNPARALLELED® Black Granite |
| Density | ≈ 3100 kg/m³ |
| Structure Type | Integrated Base + Vertical Frame |
| Flatness | Up to Grade 00 / DIN876 |
| Surface Finish | Precision lapped |
| Mounting Interface | Threaded holes / inserts |
| Max Size | Custom up to 20,000 mm |
| Thermal Expansion | Very low |
| Vibration Damping | Excellent (better than cast iron) |
quality control
Core Advantages
1. Exceptional Structural Stability
Unlike welded steel structures, this monolithic granite frame eliminates internal stress and deformation over time.
2. Superior Vibration Damping
Granite naturally absorbs micro-vibrations, ensuring:
Higher positioning accuracy
Better repeatability
Improved surface quality in machining/inspection
3. Thermal Stability for Precision Environments
Low thermal conductivity minimizes distortion caused by temperature fluctuations.
4. Integrated Design = Higher Accuracy
The base and vertical frame are manufactured as one structure, avoiding assembly errors and alignment issues.
5. Custom Machining Capability
- Dense threaded hole arrays
- Embedded inserts
- Guideway mounting surfaces
- Cable routing slots
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Real Application Scenario
Consider an optical inspection system used in semiconductor manufacturing.
With a traditional metal frame:
- Thermal expansion causes drift
- Vibrations affect imaging accuracy
With this granite structure:
- The imaging system remains stable
- Measurement repeatability improves significantly
- Calibration frequency is reduced
That translates directly into higher yield and lower operational cost.
certificates
Why UNPARALLELED® Granite?
Higher density than standard granite (≈3100 kg/m³)
Strict rejection of marble substitutes
Nanometer-level flatness capability
ISO-certified production system
Full metrology traceability
FAQ
Q1: Why is granite better than cast iron for machine bases?
Granite offers better vibration damping, no internal stress, and superior thermal stability.
Q2: Can you customize the structure?
Yes. We support fully customized:
Size
Hole patterns
Embedded components
Assembly interfaces
Q3: What industries use this type of structure?
Primarily:
Semiconductor
Precision optics
Metrology
High-end CNC systems
Q4: How is accuracy ensured?
Through:
Precision grinding and lapping
Advanced metrology tools (laser interferometer, electronic level)
Calibration traceable to national standards
Call To Action
Request a Custom Granite Machine Base Today
Looking for a high-stability granite structure for your precision equipment?
UNPARALLELED® provides:
- Custom design support
- Fast quotation within 24 hours
- Engineering consultation for your application
📩 Send your drawings or requirements now
📐 Our engineers will help you optimize both performance and cost
👉 Contact us today to build a truly stable foundation for your machine.
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