ZHHIMG® granite precision platforms are primarily made from high-density black granite (~3100 kg/m³). This proprietary material ensures long-term stability and superior performance in ultra-precision industries. The granite’s composition includes:
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Feldspar (35–65%): Enhances hardness and structural stability
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Quartz (20–50%): Improves wear resistance and thermal stability
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Mica (5–10%): Adds structural toughness
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Minor black minerals: Increase overall density and rigidity
Why Use High-Density Black Granite?
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High Hardness – Resists wear and scratches, ensuring long-term precision.
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Excellent Thermal Stability – Low thermal expansion (~4–5×10⁻⁶ /°C) minimizes measurement errors due to temperature changes.
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High Density & Low Vibration – Dense structure reduces vibration, ideal for CMMs, laser systems, and precision CNC equipment.
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Chemical Resistance & Durability – Resistant to oils, acids, and other industrial chemicals, offering long service life.
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Nanometer-Level Precision – Can be ground manually or with advanced machines to achieve micro- or nano-level flatness, essential for high-precision inspection and assembly.
Conclusion
High-density black granite is the preferred material for ZHHIMG® granite precision platforms because it combines stability, hardness, low thermal expansion, vibration resistance, and durability. These properties ensure that our platforms maintain consistent, ultra-precise measurements, supporting the demanding needs of ultra-precision industries worldwide.
Post time: Sep-23-2025