Height Gauge
SPT Metrology supplies high-precision Height Gauges designed for accurate vertical measurement, layout marking, and...
Granite Surface Plates
High-Precision Reference Bases for Accurate Industrial Measurement
Product Overview
As a trusted Granite Surface Plate Manufacturer, SPT Metrology manufactures and supplies premium Granite Surface Plates in Grade 00 and Grade 0, engineered to meet IS and DIN international metrology standards. Designed for high-accuracy measurement, inspection, and calibration tasks, our granite surface plates offer exceptional stability, long-term durability, and superior flatness—making them a preferred choice for automotive, aerospace, machining, tooling, and precision engineering industries.
Crafted from high-density black granite, each surface plate provides a smooth, non-magnetic, and corrosion-resistant measuring base. Granite naturally resists wear, thermal expansion, and deformation, ensuring consistent accuracy even under continuous industrial use. This makes it ideal for height gauges, dial indicators, CMM setups, V-blocks, and other inspection instruments that demand absolute reliability.
To guarantee precision, every SPT Metrology granite surface plate undergoes rigorous flatness verification using advanced instruments. We inspect each plate with a Wyler Swiss High Precision Electronic Level (200mm base, 0.001mm/m sensitivity, 20mm/m range), ensuring micro-level accuracy across the entire surface. In addition, we use a ROECKLE Germany spirit level (L.C. 0.10mm/m) that is periodically calibrated by a NABL-accredited laboratory, providing full traceability and compliance with quality management systems. This dual-inspection approach ensures that every plate delivered meets or exceeds the required tolerance standards.
Our granite surface plates are available in a wide range of standard sizes, with options for custom dimensions, threaded inserts, T-slots, and precision stands based on specific application requirements. Whether used in metrology labs, tool rooms, workshops, or production floors, SPT Metrology granite plates deliver consistent, repeatable, and dependable measurement performance.
By choosing SPT Metrology, you invest in a precision product designed to enhance quality control, improve inspection accuracy, and support long-term manufacturing stability. Explore our granite surface plates to elevate your measurement standards with trusted, industry-grade precision.
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