Black Granite Surface Plate

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

Precision That Redefines Industry Standards

In the world of ultra-precision manufacturing, your measurement is only as reliable as your reference plane. UNPARALLELED® Granite Surface Plates are engineered to provide the ultimate stable, flat, and vibration-dampening foundation for metrology labs and high-end production floors.

Unlike generic marble or lower-density stones, our surface plates are crafted from proprietary UNPARALLELED® Black Granite. With a density of approximately 3100kg/m³, our material offers superior physical stability and mechanical properties compared to standard European or American black granites. When the success of your project depends on a single micron, UNPARALLELED® is the name trusted by the world's leading technology giants.

• Superior Material Density: Our black granite is significantly harder and more stable than marble, resistant to scratches, and less prone to moisture absorption.
• Nanometer-Level Flatness: Utilizing specialized hand-lapping techniques by masters with over 30 years of experience, we achieve precision levels that machines alone cannot reach.
• Thermal Stability: The low coefficient of thermal expansion ensures that your reference plane remains true even with minor temperature fluctuations.
• Non-Magnetic & Non-Conductive: Ideal for sensitive electronic and semiconductor testing environments.
• Corrosion Resistance: Immune to rust and acid, ensuring a lifetime of service without the maintenance burden of cast iron plates.

Where Accuracy Meets Innovation

The UNPARALLELED® Surface Plate is the essential benchmark for:

• Semiconductor & PCB Manufacturing: Providing the stable base for AOI (Automated Optical Inspection) and X-RAY equipment.
• Coordinate Measuring Machines (CMM): Serving as the ultra-flat foundation for 3D measurement systems.
• Aerospace & Automotive Engineering: Used for calibrating precision components and tooling.
• Laboratory Metrology: A must-have for any facility utilizing laser interferometers, electronic levels (like WYLER), or high-end indicators (like Mahr/Mitutoyo).

We don't just sell stone; we provide a certified metrology solution. Our headquarters in Jinan features a 10,000m² constant temperature and humidity cleanroom built on a military-grade 1000mm thick reinforced concrete foundation. This environment, isolated by 2000mm deep anti-vibration trenches, ensures that the plate you receive was calibrated in the most stable conditions on Earth.

Our master lappers, often called "Walking Electronic Levels," can sense and remove material at the micron level by hand. Every plate is traceable to National Metrology Institutes and complies with international standards including DIN 876, ASME B89.3.7, and JIS B7513.

To maintain the sub-micron integrity of your UNPARALLELED® Surface Plate:

• Cleanliness is Priority: Use specialized granite cleaners before and after every use to prevent abrasive dust from scratching the surface.
• Point Loading: Avoid dropping heavy or sharp metal objects directly onto the plate.
• Rotation of Use: To prevent localized wear, vary the areas of the plate used for measurement tasks.
• Calibration Schedule: Depending on usage frequency, have the plate professionally re-lapped and calibrated annually to maintain its Grade 00 or higher rating.
• Support System: Always use the designated support points (Gingin Points) to minimize deflection due to the plate's own weight.

Why Choose UNPARALLELED Group?

As the only company in the industry holding ISO9001, ISO45001, ISO14001, and CE certifications simultaneously, we guarantee a "No Cheating, No Concealment, No Misleading" partnership. Join our elite circle of partners, including Apple, Samsung, GE, and the National Physics Laboratory (UK).

Hot Tags: black granite surface plate, China black granite surface plate manufacturers, suppliers, factory, 3 axis positioning system granite machine bed, granite components for nde, granite components for Spindle Test Machine, granite gantry for CNC Machine, granite machine parts for defect inspection equipment, Multi Sensor Coordinate Measuring Machine granite fabrication