Precision Granite Solutions
-
Precision Granite Tri Square Ruler
Granite triangular square (also known as marble triangular square or granite square gauge) is a high-precision geometric measuring tool made of natural stone. It is mainly used to inspect the perpendicularity and straightness of workpieces, as well as the installation and commissioning of equipment.
-
Precision Granite Straight Edge
Ultra-Stable Reference Tool for High-Accuracy Alignment & Metrology
The ZHHIMG® Precision Granite Straight Edge is a high-accuracy metrology reference tool designed for precision alignment, straightness inspection, and equipment assembly. Manufactured from proprietary ZHHIMG® high-density black granite, it delivers exceptional dimensional stability, long-term accuracy, and vibration damping that cannot be achieved with metal or marble alternatives.
Engineered for professional metrology environments, this granite straight edge is widely used in machine tool calibration, linear guide installation, CMM alignment, and precision equipment assembly, where micron-level accuracy is critical.
-
precision surface plate
Granite surface plates—commonly but inaccurately referred to as “marble platforms”—serve as primary precision reference standards in metrology, widely employed in precision engineering, instrumentation, electronics manufacturing, and scientific research laboratories. Fabricated from naturally aged, geologically stable granite with low thermal expansion and high dimensional stability, these plates undergo rigorous multi-stage lapping and calibration processes to achieve stringent flatness tolerances (typically ≤0.5 μm per 100 mm), ensuring long-term metrological reliability and traceable measurement accuracy.
-
precision granite
In the world of ultra-precision machining, the foundation is everything. ZHHIMG® provides the “bedrock” for the world’s most sophisticated technology through our custom-engineered Precision Granite Components. Leveraging our unique high-density black granite, we manufacture structural bases and components that outperform traditional materials in stability, vibration damping, and longevity.
-
Granite Square Ruler
The granite square—also referred to as a granite reference square or rock square—is a high-precision geometric metrology instrument fabricated from naturally occurring, dimensionally stable granite. It serves as a primary reference standard for verifying perpendicularity, parallelism, and flatness of mechanical components and assemblies, and is widely employed in precision manufacturing, metrology laboratories, and quality assurance processes within industries such as aerospace, optics, and semiconductor equipment fabrication.
-
Granite Machine Base
The ZHHIMG® Precision Granite Machine Base is a high-performance structural component engineered for ultra-precision industrial applications where stability, accuracy, and long-term reliability are non-negotiable. Manufactured from proprietary ZHHIMG® high-density black granite, this granite base provides an ideal foundation for advanced motion systems, metrology equipment, and semiconductor machinery.
Designed and produced by ZHONGHUI Group (ZHHIMG®)—a globally trusted manufacturer and industry benchmark—this granite structure represents the highest standards of material selection, machining accuracy, and metrological integrity.
-
granite dial base
A granite surface plate is a precision measuring aid crafted from natural granite, widely used in machining, quality inspection, and laboratory settings.
-
Custom Precision Granite Machine Bed & Air Bearing Assembly
At ZHONGHUI Group (ZHHIMG), we don’t just manufacture components; we define industry standards for precision. This custom-engineered granite machine bed is crafted from our proprietary ZHHIMG® Black Granite, a material specifically selected for its superior physical properties compared to standard European or American black granite.
-
Grade 00 / Grade 000 Granite Square
ZHHIMG granite squares are benchmark right-angle datum tools in the field of precision metrology, specially designed for ultra-precision machining and integrated circuit equipment inspection in 2026. They are mainly used to verify the perpendicularity and right-angle accuracy of components, precision structures and machine tool guideways.
-
Precision Granite V-Blocks
The laboratory-grade granite V-blocks manufactured by ZHHIMG have achieved full-chain optimization in material, craftsmanship, precision and stability. They solve the three core problems in precision measurement, namely datum drift, environmental interference and wear deformation, and have become an irreplaceable datum tool in the fields of high-end manufacturing and scientific research, providing reliable guarantee for the quality control of key components.
-
Precision Granite Structural Base
-
Only industry manufacturer holding ISO 9001 / ISO 45001 / ISO 14001 / CE
-
Over 20 international patents and trademarks
-
Proven supplier to Fortune Global 500 companies
-
Deep expertise in ultra-precision granite manufacturing
-
Absolute commitment to No cheating · No concealment · No misleading
ZHHIMG® — The Benchmark of Precision Granite Manufacturing.
-
-
The Precision Tool for Geometric Tolerance Inspection
Granite parallels are high-precision measuring tools made of natural granite, which are widely used in industrial production, precision machining and laboratory measurement fields.