ZHHIMG® High-Density Precision Granite Surface Plates

While many manufacturers utilize standard marble or low-grade stone, ZHHIMG® strictly uses proprietary ZHHIMG® Black Granite. This material is not comparable to common marble; it is a high-performance industrial component.

•   Superior Density: Our granite features a density of approximately 3100kg/m³, providing a significantly more stable and rigid structure than European or American counterparts.
•   Thermal Stability: With a naturally low coefficient of thermal expansion, our plates maintain their geometry even during minor temperature fluctuations.
•   The Artisan’s Touch: Our master technicians, many with over 30 years of manual lapping experience, hand-finish every plate to nanometer-level tolerances. They are "walking electronic levels" who ensure the surface is perfect at a microscopic scale.

Technical Specifications & Global Standards

We are the only company in the industry to simultaneously hold ISO 9001, ISO 45001, ISO 14001, and CE certifications. Our products are manufactured to meet and exceed the world's most stringent metrology standards:

•   Germany: DIN 876 / DIN 875
•   USA: ASME / GGG-P-463C-78
•   Japan: JIS
•   UK: BS817-1983

Applications in High-Tech Industries

ZHHIMG® Surface Plates serve as the critical base for equipment where "zero-error" is the only acceptable outcome.

•   Semiconductor Manufacturing: Base components for lithography and wafer inspection.
•   Metrology Labs: Essential for CMM (Coordinate Measuring Machines) and laser interferometry.
•   Aerospace & Automotive: Precision alignment for engine components and high-speed CNC machining.
•   Optical Inspection: Bases for AOI (Automated Optical Inspection) and X-ray systems.