Granite surface plates are essential tools in precision measurement and inspection, widely used in industries such as machinery manufacturing, aerospace, and laboratory calibration. Compared with other measuring bases, high-precision granite surface plates offer outstanding stability, durability, and accuracy, making them an ideal choice for long-term industrial applications.
Key Advantages of Granite Surface Plates
1. Excellent Dimensional Stability
Granite is a natural material that has undergone millions of years of geological aging, resulting in a highly stable internal structure. The linear expansion coefficient is extremely small, stress concentration has been fully released, and the material does not deform under normal conditions. This ensures that the plate maintains its accuracy even under heavy loads and general temperature variations.
2. Superior Hardness and Wear Resistance
High-quality granite has strong rigidity, high hardness, and outstanding wear resistance. Unlike metal plates, granite is resistant to scratches and does not easily suffer from long-term surface damage, ensuring long-lasting precision and reliability.
3. Corrosion and Rust Resistance
Granite is naturally resistant to acids, alkalis, and most chemical substances. It does not rust, requires no oil coating, and is less likely to accumulate dust. This makes it simple to maintain and significantly extends its service life.
4. Non-Magnetic and Smooth Operation
Granite surface plates are non-magnetic, allowing precise measuring instruments to move smoothly across the surface without drag or resistance. They are not affected by humidity and maintain stable flatness, ensuring reliable performance in different environments.
5. High Accuracy in Normal Conditions
Even without strict constant temperature and humidity control, granite surface plates can maintain measurement accuracy at room temperature. This makes them suitable for workshops and laboratories where environmental conditions may vary.
6. Ideal for Precision Measurement
Granite surface plates are widely used as reference bases for measuring instruments, precision tools, and mechanical components. Their stable structure and high accuracy make them especially suitable for high-precision measurement applications.
Conclusion
Granite surface plates, manufactured from premium natural stone through mechanical processing and skilled hand-finishing, provide unmatched accuracy, durability, and ease of maintenance. Their combination of high hardness, corrosion resistance, non-magnetic properties, and long-term stability makes them the preferred choice for industries requiring precision inspection and calibration.
By choosing high-quality granite surface plates, manufacturers and laboratories can ensure reliable measurement results, reduce maintenance costs, and extend the service life of their precision tools.
Post time: Aug-18-2025