Precision Granite Surface Plates & Machine Bases

Not all granite is created equal. While many manufacturers use inferior marble to reduce costs, ZHHIMG® exclusively utilizes proprietary Black Granite with a density of approximately 3100kg/m³.

•  Superior Stability: Our granite features a natural density and physical properties that surpass European and American black granite.

•  Nano-Level Precision: Hand-lapped by master technicians with over 30 years of experience (often called "walking electronic levels"), our surfaces achieve flatness tolerances at the nanometer scale.

•  Inert & Durable: Naturally rust-proof, non-magnetic, and resistant to acid and alkali, ensuring the calibration remains stable over decades.

•  Vibration Dampening: The high internal damping coefficient makes it the ideal material for high-speed linear motor platforms and sensitive optical equipment.

Technical Specifications & Manufacturing Excellence

We don’t just make granite components; we define the precision environment they live in.

•  Unmatched Scale: Our dual facilities (200,000 m²) can process single units up to 20 meters in length and 100 tons in weight.

•  Controlled Environment: Production takes place in a 10,000 m² constant temperature and humidity cleanroom, featuring 1000mm thick anti-vibration flooring to eliminate external interference.

•  Traceable Accuracy: Every product is verified using Renishaw Laser Interferometers and Wyler electronic levels, with certifications traceable to national metrology institutes.