Ultra Precision Manufacturing Solutions
-
Granite Straight Ruler
In semiconductor and high-tech manufacturing, dimensional accuracy is specified not in millimeters, but in micrometers—and increasingly in nanometers. During critical processes such as photolithography, wafer defect inspection, and ultra-precision assembly, even sub-micron mechanical deformation of metrology components can induce significant process drift, yield loss, or device failure.
The ZHHIMG granite straight edge is engineered to serve as a stable, thermally invariant, and geometrically traceable primary reference standard—establishing an unambiguous baseline for precision alignment and measurement.
-
Precision Granite Inspection Plate
-
ISO9001 / ISO45001 / ISO14001 Certified
-
CE Compliant
-
20+ International Patents & Trademarks
-
100-ton single-piece machining capacity
-
20m maximum machining length
-
Temperature & humidity controlled grinding workshop
-
Laser interferometer verification
We do not compromise on material.
We do not compromise on flatness.
We do not compromise on integrity.Precision manufacturing cannot tolerate shortcuts.
-
-
Precision Granite Dial Base
Granite surface plates—commonly configured as solid slabs or integrated with precision-engineered support stands—are widely regarded as the primary physical reference standard for dimensional metrology. Their exceptional dimensional stability, low coefficient of thermal expansion, and resistance to wear and deformation make them indispensable as a stable, inert reference plane in high-precision measurement applications across calibration laboratories, quality control environments, and advanced manufacturing workshops.
-
High-Precision Granite Machine Base & Assembly
In the world of ultra-precision manufacturing, the stability of your machine base determines the ceiling of your product’s accuracy. At ZHHIMG®, we provide more than just stone; we deliver the “Silent Guardian” of precision—Granite Machine Bases and Integrated Assemblies.
-
granite tri square
In laboratory metrology, granite triangular plates serve as primary reference standards. Comparative measurement—where dimensional deviations are evaluated relative to a stable, high-stability artifact—constitutes the foundational principle of precision metrology; in this context, granite plates offer superior dimensional stability, thermal inertia, and surface integrity compared with metallic measuring tools.
-
Precision Granite Surface Plate
Ultra-Stable Metrology Reference Platform by ZHHIMG®
When measurement accuracy defines product quality, the stability of your reference platform becomes critical.
The ZHHIMG® Precision Granite Surface Plate is engineered as a high-precision datum reference for dimensional inspection, calibration, assembly, and advanced metrology applications.Manufactured from our proprietary ZHHIMG® high-density black granite (≈3100 kg/m³), this surface plate delivers exceptional dimensional stability, vibration damping, and long-term flatness performance far beyond marble or lower-grade stone alternatives.
-
Ceramic Straight Edge
Granite straightedges are widely employed in precision mechanical systems and semiconductor manufacturing equipment as high-stability reference standards. Their exceptional dimensional stability, low coefficient of thermal expansion, and superior vibration-damping characteristics make them indispensable for critical alignment, leveling, and geometric calibration tasks during equipment installation, commissioning, and periodic verification.
-
Ultra-High Precision Granite Machine Bases & Components
The Bedrock of Nano-Level Accuracy for Global High-Tech Industries
In the realm of ultra-precision manufacturing, your equipment’s performance is only as reliable as its foundation. ZHHIMG® (Zhonghui Group) provides the world’s most stable, high-density granite solutions, engineered to meet the rigorous demands of semiconductor, metrology, and aerospace applications.As the only manufacturer in the industry holding ISO 9001, ISO 45001, ISO 14001, and CE certifications simultaneously, ZHHIMG® is more than a supplier—we are the global standard for precision.
-
Ultra-High Precision Granite Machine Bases & Components | ZHHIMG®
The Foundation of Nano-Level Accuracy for Global High-Tech Industries
In the world of ultra-precision machining and metrology, your equipment is only as stable as the ground it stands on. At ZHHIMG® (Zhonghui Group), we provide the literal “bedrock” for the world’s most demanding technologies.Leveraging our unique ZHHIMG® Black Granite—with a superior density of ≈3100kg/m³—we manufacture precision granite components that outperform European and American counterparts in physical stability and vibration dampening.
-
Granite Parallels
The fundamental principle underlying parallelism error measurement is to utilize the high-precision reference plane of a granite parallelism gauge as an ideal datum surface, and then quantify the maximum deviation—typically expressed as the distance between two parallel planes—between the workpiece surface and this datum surface.
-
Precision Granite Mechanical Component with Central Bore
Unlike metal frames that gradually deform due to internal stress release, granite maintains geometry for decades. That is why granite is widely used in CMM machines, semiconductor equipment bases, and precision measuring instruments.
-
Ultra-Precision Granite Machine Base with Linear Guide Assembly
Scientific Insight: Why Granite Ensures Long-Term Accuracy
Unlike cast iron, granite contains no internal casting stress. Metal structures gradually deform due to stress release, temperature fluctuation, and oxidation.