Granite Base For Metrology

UNPARALLELED LTD is one of the leading manufacturers and suppliers of granite base for metrology in China. With abundant experience, we warmly welcome you to buy advanced granite base for metrology made in China here from our factory. We also accept custom orders.

The Granite Base for Metrology manufactured by UNPARALLELED® represents the highest level of dimensional stability, rigidity, and precision in the ultra-precision machinery industry. Designed and crafted from UNPARALLELED® Black Granite, this product provides a superior alternative to traditional metal or marble machine bases, delivering outstanding performance in environments that demand nanometer-level accuracy.

Our granite bases are widely used in CMMs, laser equipment, semiconductor machines, PCB drilling machines, metrology systems, optical inspection devices, and high-end automation systems. With over 20 international patents and ISO 9001, ISO 14001, ISO 45001, and CE certifications, UNPARALLELED® has become synonymous with precision and reliability.

• Exceptional Stability:

Made from UNPARALLELED® Black Granite with a density of approximately 3100 kg/m³, ensuring outstanding vibration damping, thermal stability, and resistance to deformation.

• Superior Flatness & Accuracy:

Each granite base is hand-lapped by craftsmen with more than 30 years of experience, achieving flatness accuracy within sub-micron levels, verified with world-class metrology instruments (Mahr, WYLER, Renishaw laser interferometer).

• Corrosion & Wear Resistance:

Unlike cast iron or steel bases, granite does not rust or deform over time. It maintains stable precision even under varying temperature and humidity conditions.

• High Load Capacity:

The granite structure provides excellent load-bearing capability without internal stress, ideal for supporting precision linear stages, motion systems, and air bearing assemblies.

• Customizable Design:

UNPARALLELED® offers fully customized granite bases, including T-slots, inserts, air bearings, guide rails, threaded holes, and precision alignment surfaces, manufactured to meet DIN, ASME, JIS, and GB standards.

The UNPARALLELED® Granite Base for Metrology is essential in high-precision industries such as:

• Semiconductor manufacturing
• PCB drilling and inspection systems
• Coordinate Measuring Machines (CMMs)
• Optical and laser metrology
• Industrial CT and X-ray inspection equipment
• Precision motion systems and linear motor platforms
• New energy and battery testing systems

Every granite base is inspected in a temperature and humidity-controlled metrology lab to ensure long-term dimensional stability. All calibration tools are traceable to national metrology institutes, ensuring internationally recognized precision.

We strictly follow DIN876, ASME B89.3.7, JIS B7513, and GB/T 20428 standards, guaranteeing consistency, traceability, and accuracy in every component we produce.

To maintain long-term precision performance:

• Clean the surface regularly using a lint-free cloth and neutral cleaner.
• Avoid impact or localized pressure that could cause micro-cracks or surface deviation.
• Keep the environment stable - avoid direct sunlight, large temperature fluctuations, or vibrations.
• Annual recalibration by certified technicians is recommended to ensure lasting accuracy.

UNPARALLELED® also provides on-site maintenance, repair, and calibration services to help customers maintain optimal performance.

Why Choose UNPARALLELED®

With the industry's most advanced granite processing equipment and over 200,000 m² of production facilities, UNPARALLELED® leads the world in large-scale precision granite manufacturing. Our capability to process up to 100-ton components and 20-meter-long granite bases sets us apart as a true pioneer in ultra-precision engineering.

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