Precision Granite Support Block

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

This Precision Granite Support Block by UNPARALLELED® is made from our exclusive high-density black granite, featuring exceptional stability, rigidity, and dimensional accuracy. Each surface is meticulously hand-lapped by experienced craftsmen to achieve nanometer-level flatness. The custom through-holes and cutouts are precisely machined to meet the unique structural and assembly requirements of semiconductor, optical, and measurement equipment.

UNPARALLELED® Black Granite is far superior to common stone or marble materials.

• High Density: ≈ 3100 kg/m³ for maximum rigidity and vibration damping.
• Thermal Stability: Extremely low coefficient of thermal expansion ensures accuracy under varying temperatures.
• Wear Resistance: Excellent abrasion resistance extends service life and measurement stability.
• Corrosion-Free: Naturally resistant to rust, acids, and oils-ideal for cleanroom and high-precision environments.

• Ultra-precision surface flatness: up to 0.001 mm/m.
• Customizable designs: holes, slots, and inserts according to customer drawings.
• Stable mechanical performance for long-term dimensional integrity.
• Compatible with air bearing systems, linear guides, and metrology assemblies.
• Manufactured and calibrated under constant-temperature and humidity-controlled conditions.

UNPARALLELED® Precision Granite Support Block are widely used as machine bases and reference structures in:

• Semiconductor and wafer processing systems
• Optical and metrology instruments
• CMMs and coordinate measuring machines
• High-precision CNC machines
• Laser and AOI inspection systems
• Scientific and calibration laboratories

All UNPARALLELED® products are manufactured under strict ISO 9001, ISO 14001, and ISO 45001 management systems and CE certification. Every component is inspected using Renishaw laser interferometers, WYLER electronic levels, and Mitutoyo measuring instruments, traceable to national metrology institutes.

To maintain long-term accuracy:

• Keep the surface clean and free from dust, oil, or metal debris.
• Avoid exposure to rapid temperature fluctuations.
• Store and operate on a stable, vibration-free foundation.
• Calibrate periodically in a controlled environment.
• Avoid impact or concentrated loading on localized areas.

Why Choose UNPARALLELED®

As the only manufacturer in the industry holding ISO 9001, ISO 14001, ISO 45001, and CE certifications, UNPARALLELED® Group represents the highest standards of precision granite manufacturing. With advanced machining capacity up to 20 m × 4 m × 1 m and international recognition across over 20 patents and trademarks, we deliver performance and trust that are truly unparalleled.

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