يوم: 05/12/2026

Precision granite (commonly known as granite) is the core structural material for ultra-precision machine tools. Leveraging four key characteristics—low thermal expansion, high damping, high rigidity, and zero internal stress—it has become the preferred choice for equipment requiring nanometer/micrometer-level precision. It is widely used in critical components such as beds, bases, guideways, crossbeams, and worktables, supporting…

Precision Granite as the Benchmark Support for High-End Equipment: Core Overview I. Core PositioningPrecision granite serves as the benchmark support substrate for high-end precision equipment, replacing traditional cast iron, cast steel, and aluminum alloys. It acts as a primary geometric benchmark for whole machine assembly, motion guides, measurement positioning, and precision traceability. It is the…