Jour : 03/12/2026

I. Core Principles and Structural CompositionWorking Principle: High-pressure clean air is sprayed through porous graphite/throttle hes to form a uniform air film of 5–15 μm between the granite base and the moving slide; contactless levitation achieves zero-friction motion, while relying on air fitiffness for load-bearing and guidance; often combined with vacuum preloading/magnetic preloading to enhance…

I. Core Definitions and FunctionsThe granite base (worktable gantry/column fraa CMM serves as the absolute reference for measurement, establishing a stable three-dimensional coordinate system, supporting workpieces and moving components, and suppressing vibration and thermal deformation; high-end models ofadopt an all-granite structure (integrated three-axis guides) to ensure overall thermal consistency. Granite Base II. Irreplaceable Material CharacteristicsLong-term…