ZHHIMG® Precision Granite Components and Bases

The superior performance of this granite base starts with the material itself. We exclusively utilize our proprietary ZHHIMG® Black Granite (a high-density gabbro), specifically selected for its exceptional physical properties that surpass common gray granite and unstable marble alternatives:

●   Extreme Density: Our material boasts a high density of approximately 3100 kg/m³. This superior mass contributes directly to greater stiffness (Young's modulus), which is critical for minimizing deflection under load and maintaining the integrity of the reference plane.

●   Superior Stability: The granite is naturally stress-relieved over millennia. We further enhance this by controlled aging processes, ensuring that the finished component exhibits minimal internal stress and virtually no susceptibility to warping or dimensional creep over time.

●   Optimal Thermal Performance: Granite possesses extremely low thermal conductivity and a minimal coefficient of thermal expansion. This ensures that the base maintains dimensional stability even under slight ambient temperature fluctuations, a non-negotiable requirement for sub-micron accuracy.

●   Durability and Cleanliness: Unlike metal structures, granite is non-magnetic, corrosion-free, and requires no protective plating, making it ideal for cleanroom environments and long-term use without degradation.