UNPARALLELED LTD is one of the leading manufacturers and suppliers of cnc machined granite components in China. With abundant experience, we warmly welcome you to buy advanced cnc machined granite components made in China here from our factory. We also accept custom orders.
Product Story & Value Proposition
Redefining Stability in Ultra-Precision Industries
In the world of ultra-precision manufacturing, stability is not just a requirement-it is the foundation of success. At UNPARALLELED Group (UNPARALLELED®), we don't just cut stone; we engineer stability.
The component shown above represents the pinnacle of our craftsmanship. Unlike standard marble bases found in the market, this Precision Black Granite Assembly is crafted from high-density natural granite (≈3100kg/m³). It is designed for engineers who refuse to compromise on accuracy. Whether it is for a high-speed PCB drilling machine or a sensitive electron microscope, this base provides the vibration damping and thermal stability necessary to achieve nanometer-level precision.
We believe that "Precision business can't be too demanding." That is why every inch of this granite structure has been ground and measured to perfection, ensuring your equipment performs flawlessly for decades.
quality control
Key Features
- Superior Material Quality: We strictly use UNPARALLELED® High-Density Black Granite, rejecting inferior marble. With a density of ≈3100kg/m³, our material offers exceptional rigidity and wear resistance, far surpassing European and American standards.
- Unmatched Processing Capability: Machined on advanced Taiwanese Nantex grinders (valued at over $500,000 each), we achieve flatness and parallelism that few can match. Our "Master Grinders" with 30+ years of experience manually fine-tune surfaces to nanometer-level accuracy.
- Complex Geometry Integration: As seen in the image, we integrate complex features like T-slots, threaded inserts, and air bearing mounting surfaces directly into the stone, reducing assembly time and increasing structural integrity.
- Vibration Damping Mastery: The internal structure is optimized to absorb micro-vibrations, making it the ideal base for Semiconductor Lithography, AOI Equipment, and CMMs.
- Global Certification: Produced in a 10,000m² constant temperature & humidity workshop, fully compliant with ISO9001, ISO14001, and ISO45001 standards.
Technical Specifications
| Parameter | Specification |
|---|---|
| Material | UNPARALLELED® Natural Black Granite (High Density) |
| Density | ≈ 3100 kg/m³ (Superior to standard Granite/Marble) |
| Processing Size | Up to 20m Length x 4m Width x 1m Thickness |
| Flatness Accuracy | Up to Grade 00 / DIN 876 / ASME B89.3.7 (Nano-level available) |
| Surface Finish | Precision Ground & Polished (Ra < 0.4μm) |
| Features | Custom T-Slots, Holes, Grooves, Metal Casting Integration |
| Application | Semiconductor, Metrology, Optics, PCB, Laser Equipment |
services
Application Scenarios
1. Semiconductor & PCB Equipment
Scenario: High-speed drilling or lithography machines generate heat and vibration.
Benefit: Our granite base absorbs thermal expansion and vibration, ensuring every circuit line is printed with absolute precision.
2. Precision Metrology (CMM & Optical Measurement)
Scenario: A coordinate measuring machine requires a rock-solid datum.
Benefit: The "Zero-Deformation" characteristic of our granite ensures that the measurement data is accurate regardless of environmental changes.
3. Medical & Scientific Instruments
Scenario: CT scanners or Electron Microscopes requiring stability.
Benefit: The high damping capacity eliminates micro-shocks, providing clearer imaging results.
FAQ
Q: Why is UNPARALLELED® Black Granite better than regular Marble?
A: Many manufacturers use cheap marble to cut costs. However, marble has lower density and higher water absorption. Our UNPARALLELED® Black Granite has a density of ≈3100kg/m³, offering better hardness, lower thermal expansion, and superior anti-corrosion properties. It is the choice for true precision.
Q: Can you manufacture large-scale components?
A: Absolutely. We are one of the few factories globally capable of processing (monolithic) pieces up to 100 tons. Our workshop features heavy-duty cranes and 20m long machining centers.
Q: How do you ensure the accuracy of such complex parts?
A: We adhere to our philosophy: "If you can't measure it, you can't produce it." We utilize Renishaw Laser Interferometers, Wyler Electronic Levels, and Mahr Probes. Every product comes with a calibration certificate traceable to national standards.
certificates
🤝 Partner with the Industry Standard
You are not just buying a stone base; you are investing in the stability of your entire production line. Trusted by Samsung, Apple, GE, and Bosch, UNPARALLELED® is ready to elevate your equipment's performance.
Don't settle for "good enough" when you can have "unparalleled."
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