UNPARALLELED LTD is one of the leading manufacturers and suppliers of ultra-precision granite base in China. With abundant experience, we warmly welcome you to buy advanced ultra-precision granite base made in China here from our factory. We also accept custom orders.
Product Description
Engineered for Accuracy Beyond Limits
In ultra-precision industries, the foundation defines everything.
The UNPARALLELED® Precision Granite Base is not just a structural component-it is the reference standard upon which measurement accuracy, motion stability, and system reliability are built.
Manufactured from UNPARALLELED® high-density black granite (≈3100 kg/m³), this platform delivers exceptional rigidity, thermal stability, and long-term dimensional integrity-far exceeding conventional granite and completely outperforming marble substitutes.
Whether you are building a CMM system, semiconductor inspection platform, or high-speed linear motor stage, this granite base ensures one thing:
Your system performs exactly as designed-every micron, every cycle.
quality control
Technical Specifications
| Parameter | Specification |
|---|---|
| Material | UNPARALLELED® Black Granite |
| Density | ≈ 3100 kg/m³ |
| Flatness | Up to nanometer-level (customizable) |
| Max Length | Up to 20,000 mm |
| Max Width | 4,000 mm |
| Max Thickness | 1,000 mm |
| Max Single Weight | Up to 100 tons |
| Surface Finish | Precision lapped |
| Mounting Interfaces | Customized inserts, T-slots, guide rail interfaces |
| Operating Environment | Temperature-controlled metrology rooms |
| Vibration Control | Compatible with isolation systems |
| Certification | ISO9001, ISO14001, ISO45001, CE |
Core Advantages
1. Superior Material Integrity
Unlike many suppliers using marble or low-grade stone, we use only certified high-density black granite.
No internal stress
No deformation over time
Exceptional wear resistance
2. Extreme Flatness & Stability
Achieved through manual lapping + precision grinding, combining machine accuracy with human expertise.
Nanometer-level flatness achievable
Minimal thermal expansion
Ideal for optical and laser systems
3. Massive Manufacturing Capability
Few manufacturers globally can match this scale:
20-meter machining capability
100-ton single-piece processing
High-volume, fast delivery
4. Metrology-Driven Production
Every product is verified using advanced systems:
Laser interferometry
Electronic leveling systems
Sub-micron measurement tools
Because:
If it cannot be measured, it cannot be manufactured.
5. Vibration-Resistant Foundation
Granite naturally absorbs vibration better than metal.
Combined with:
Isolation mounting design
Controlled environment production
→ Ensures stable performance in high-speed, high-precision applications
services
Application Scenarios
This precision granite base is widely used in:
- Coordinate Measuring Machines (CMM)
- Semiconductor inspection equipment
- PCB drilling and imaging systems
- Laser processing machines (femtosecond / picosecond)
- Linear motor platforms (XY stages)
- Optical inspection systems (AOI, CT, X-ray)
- Precision assembly and calibration platforms
FAQ
Q1: Why choose granite instead of metal?
Granite offers superior vibration damping, thermal stability, and corrosion resistance-making it ideal for ultra-precision environments.
Q2: Is this real granite or marble?
This is high-density black granite.
We strictly do NOT use marble or substitute materials.
Q3: Can you customize size and structure?
Yes. We provide fully customized solutions, including:
Embedded inserts
Guide rail mounting
Air bearing integration
Q4: How is accuracy verified?
All products are calibrated using traceable metrology systems aligned with national standards.
Q5: What industries use this product most?
Semiconductor, metrology, precision manufacturing, optics, and advanced automation industries.
certificates
Build Your Precision System on a Reliable Foundation
If your application demands micron or nanometer-level accuracy, the base structure is not a place to compromise.
UNPARALLELED® delivers precision you can measure-and trust.
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