Granite Inspection Plate

Granite Inspection Plate is a critical precision benchmark tool designed for industrial inspection,measurement,and quality control applications.Crafted from high-quality natural granite,it delivers exceptional stability,accuracy,and durability,making it an essential component in high-precision manufacturing and testing environments.

The core advantage of the Granite Inspection Plate lies in its premium natural granite material.Selected for its extremely low thermal expansion coefficient,the granite effectively minimizes measurement errors caused by environmental temperature changes,ensuring consistent precision even in fluctuating working conditions.Additionally,it is non-magnetic,acid and alkali resistant,and free from deformation,eliminating interference with precision inspection instruments such as dial indicators,height gauges,and coordinate measuring machines(CMMs).The plate’s surface undergoes precision grinding and lapping processes,achieving micron-level flatness that provides a reliable reference plane for workpiece dimensional inspection and geometric tolerance assessment.

Structurally,the Granite Inspection Plate is equipped with adjustable support feet,allowing easy level calibration to maintain a horizontal working surface in various workshop or laboratory settings.Standard threaded holes are uniformly arranged on the plate surface,facilitating quick clamping and fixing of workpieces of different sizes,thereby improving inspection efficiency and operational convenience.It is widely used in aerospace,automotive parts production,precision electronics,mold manufacturing,and laboratory testing,serving as a fundamental tool for ensuring product quality throughout the production process.

For maintenance,the granite surface should be cleaned with a dedicated cleaning agent to avoid scratches,stains,or chemical corrosion.Regular re-inspection of surface flatness is recommended to sustain long-term inspection accuracy.Manufactured in compliance with international standards including ISO 8015 and ASME B89.3.1,the Granite Inspection Plate guarantees the uniformity and credibility of inspection data across different workstations and production batches,laying a solid foundation for high-precision quality management.