Height Gauge
SPT Metrology supplies high-precision Height Gauges designed for accurate vertical measurement, layout marking, and...
CMM Granite Plate
Precision Granite Base for Coordinate Measuring Machines & High-Accuracy Inspection
Product Overview
As a trusted CMM Granite Plate Manufacturer, SPT Metrology manufactures premium-grade CMM Granite Plates designed specifically for Coordinate Measuring Machines (CMMs), high-accuracy inspection systems, and advanced metrology applications. Engineered from naturally seasoned, high-density black granite, these plates offer exceptional rigidity, stability, and long-term dimensional accuracy. Serving as the structural foundation of a CMM, each granite plate is precision-lapped and quality-checked to maintain flawless flatness and geometric integrity in compliance with international metrology standards.
Every CMM granite plate is finished to extremely tight tolerances, delivering superior flatness, straightness, and parallelism across the entire surface. This guarantees accurate probing, repeatable measurements, and stable machine performance over years of continuous use. The fine-grained granite provides inherent advantages over cast iron or steel, including zero corrosion, minimal thermal expansion, and excellent vibration damping—critical for ensuring reliable measurement on sensitive coordinate measuring equipment.
SPT Metrology CMM granite plates are available with precision-drilled threaded inserts, fixture mounting points, or custom hole patterns, enabling seamless integration of work-holding systems, jigs, and modular fixturing. These plates are designed to support both bridge-type and gantry-type CMM structures, offering excellent load-bearing capacity without deformation.
Common applications include:
- Serving as the primary structural base for CMM machines
- High-precision dimensional inspection
- Calibration of components and tooling
- Fixturing and workpiece positioning during measurement
- Vibration-free mounting of sensitive measuring equipment
Each plate is inspected using state-of-the-art instruments and certified for conformance to international standards such as IS: 7327, DIN, and ISO specifications for granite metrology equipment. This guarantees accuracy and stability suitable for aerospace, automotive, electronics, heavy engineering, and precision manufacturing industries.
Choose SPT Metrology CMM Granite Plates for unmatched stability, precision, and long-lasting performance. With their superior material quality, accuracy grade, and customizable configurations, these granite plates provide the perfect foundation for achieving reliable, world-class measurements in modern coordinate metrology.
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