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- AA Grade Granite Bench Centre for CNC Setup & GD&T Inspection
AA Grade Granite Bench Centre for CNC Setup & GD&T Inspection
- Zero Drift, Non-Magnetic, Rust-Proof
Precision Granite Bench Centre: “Zero-Reference” for Critical Processes

AA Grade Granite Bench Centre for CNC Setup & GD&T Inspection
Our Precision Granite Bench Centre is manufactured from meticulously selected, naturally aged, high-quality granite. It serves as the immovable “zero-reference” standard for most critical operations. Compared to traditional cast iron tables, this product offers exceptional thermal stability, non-magnetic properties, and lifelong, maintenance-free operation. It is the preferred solution for aerospace, medical device manufacturing, precision mould making, and high-end tool rooms, enabling to maintain micron-level accuracy even in fluctuating shop floor environments.
Key Features & Advantages
1.Immune to Temperature Change (Zero Drift):Feature: Exceptionally low coefficient of thermal expansion. Ensures consistent measurement accuracy regardless of workshop temperature fluctuations. Eliminates “data drift” and faulty scrap judgements caused by day-night temperature variations.

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2.Non-Magnetic & Electrically Insulating Safety Perfectly suitable for inspection of components with magnetic sensors, with no signal interference. Generates no sparks, making it safe for use in explosive-proof or sensitive electronic environments.
3.Ultra-Smooth Surface & Wear Resistance. Mirror-grade micro-finish (up to AA Grade), extremely high hardness. Significantly reduces wear on expensive measuring instruments (e.g., dial indicator tips, CMM probes, height gauges), extending their service life and protecting your capital assets.
- Anti-corrosion and low maintenance operation:
Fully tolerant of all kinds of liquids including coolant, engine oil, acid and alkali. Non-oxidized granite matrix ensures permanent rust protection without the use of protective coating. Easy-to-clean surface features facilitate rapid cleaning, thus shortening maintenance cycles and reducing life cycle costs.
5.Naturally Stress-Relieved
Formed over hundreds of millions of years, the granite is naturally stress-free internally.
Guarantees long-term geometric stability, eliminating the risk of warping and twisting inherent in cast iron tables over time.

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