Granite Precision Surface Plates

In the world of precision engineering, nanometer deviations can compromise entire production lines. The search for the perfect measurement benchmark ends with UNPARALLELED® Granite Precision Surface Plates. As the global leader in precision granite manufacturing, we've redefined industry standards. We combine proprietary material science, state-of-the-art manufacturing, and relentless commitment to accuracy. Our surface plates aren't just tools-they're the silent guardians of precision powering the most advanced technologies.

At the core of every UNPARALLELED® surface plate lies our exclusive UNPARALLELED® Black Granite. It is quarried from select deposits and refined through a 12-step material stabilization process. With a density of 3100 kg/m³, it surpasses European granite standards by 12%. This material offers exceptional vibration damping properties (0.015 damping ratio) and thermal stability (0.8×10⁻⁶/°C). It ensures measurements remain consistent even in dynamic manufacturing environments.

Unlike marble substitutes that degrade under thermal cycling, our granite maintains dimensional stability across -20°C to 60°C. This makes it ideal for precision-critical applications.

Our manufacturing capabilities set us apart as the industry's production powerhouse. We operate from a 200,000 m² facility near Qingdao Port. We utilize four Taiwanese Nan Teh precision grinders, each exceeding 500,000 USD investment. These grinders achieve nanometer-level flatness. Our production lines deliver 20,000 sets monthly of 5000mm precision granite components. We offer single-piece processing capabilities up to 20m in length and 100-ton weight. This scale ensures consistent quality control while meeting demanding delivery schedules.

The true measure of our surface plates lies in their precision parameters. Our standard Grade 00 surface plates achieve ≤0.5μm/m flatness across the entire working surface. This is verified through three-point laser interferometry using Renishaw XL-80 laser systems. These systems are traceable to NIST standards.

Each plate undergoes 72 hours of natural aging post-machining to relieve internal stresses. It then receives precision grinding in our 10,000 m² constant temperature and humidity workshop. The facility features 1000mm-thick ultra-hard concrete floors and 500mm-wide shock-proof trenches. These eliminate environmental vibrations.

Our proprietary hand-lapping process is performed by master craftsmen with over 30 years of experience. It creates the distinctive honeycomb surface texture that reduces air friction while maintaining optimal load distribution. This manual finishing step, combined with automated CNC machining, results in surface roughness values ​​as low as Ra 0.02μm. This is critical for optical and semiconductor applications where even microscopic irregularities can Distortion measurements.

UNPARALLELED® Granite Precision Surface Plates serve as the backbone for precision across industries:

Semiconductor & Electronics Manufacturing
As the foundation for wafer inspection systems and PCB drilling machines, our plates provide the stability required for 5nm chip production. Major semiconductor equipment manufacturers like ASML and Tokyo Electron rely on our 6000mm×4000mm platforms for their lithography systems.

Metrology & Quality Control
Calibration laboratories worldwide, including the National Physical Laboratory (UK) and Physikalisch-Technische Bundesanstalt (Germany), trust our Grade 00 plates as primary measurement standards. The nanometer-level flatness ensures accurate calibration of CMMs, optical comparators, and coordinate measuring machines.

Advanced Manufacturing
In the new energy sector, our plates enable precise assembly of lithium battery electrode coating systems and fuel cell testing rigs. Automotive manufacturers like Bosch and Continental utilize our custom-sized plates for precision tooling setup and gear measurement.

Research & Academia
Leading Institutions such as MIT and Tsinghua University incorporate our surface plates into their quantum computing and nanotechnology research facilities, where environmental stability is paramount for experimental reproducibility.

To maximize the lifespan of your UNPARALLELED® Granite Surface Plate, follow these professional care recommendations:

Daily Maintenance

• Clean surfaces with a lint-free microfiber cloth dampened with isopropyl alcohol (99.9% purity) to remove oil residues and particulate matter
• Use only lint-free microfiber cloths specifically designed for optical surfaces (e.g., Kimtech™ wipes) to prevent micro-scratches
• For stubborn contaminants, apply isopropyl alcohol with a spray bottle at 30cm distance, then wipe immediately in straight lines (never circular motions)
• Use dedicated granite inspection blocks to avoid scratches from metallic tools
• Maintain ambient conditions at 20±0.5°C with 50±5% humidity for optimal performance

Periodic Calibration

• Conduct flatness verification annually using a laser interferometer or autocollimator
• Calibrate annually using certified reference standards traceable to ISO 17025 accreditation
• Perform edge straightness checks quarterly, referencing original calibration certificates
• All calibration procedures should follow ISO 8512-2:2011 standards for granite surface plates

Long-term Care

• Avoid placing heavy objects on plate edges to prevent chipping
• Use rubberized lifting pads when repositioning plates to distribute weight evenly
• Store unused plates vertically on dedicated racks with foam padding to prevent warping

Our commitment to precision is backed by an industry-leading quality management system certified to ISO 9001:2015, ISO 14001 environmental standards, and CE marking for European markets. With over 20 international patents covering our material treatment and manufacturing processes, we stand behind every surface plate with a 5-year warranty-double the industry average.

As the preferred supplier to 8 of the top 10 global metrology companies and research institutions like CERN and NASA's Jet Propulsion Laboratory, UNPARALLELED® represents more than a product line-it's a promise of uncompromising quality in the pursuit of precision. When your measurements demand absolute reliability, trust the surface plates that set the standard for the world's most exacting industries.

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