Height Gauge
SPT Metrology supplies high-precision Height Gauges designed for accurate vertical measurement, layout marking, and...
Cast Iron Surface Plates
Durable, High-Strength Bases for Precision Inspection & Tooling
Product Overview
As a trusted Cast Iron Surface Plate Manufacturer, SPT Metrology manufactures high-quality Cast Iron Surface Plates built for durability, accuracy, and consistent performance in demanding industrial environments. Manufactured to Grade 1 accuracy as per IS 2285:2003, our cast iron surface plates provide stable and reliable reference surfaces for toolmaking, inspection, gauging, spotting, and heavy-duty workshop applications, ensuring long-term precision and mechanical stability under continuous use.
Our cast iron surface plates are made from premium-grade IS 210:2009, FG 260 material, known for its superior strength, wear resistance, and structural integrity. Every plate is thoroughly stress-relieved to eliminate internal stresses, preventing deformation and maintaining flatness accuracy over time. With a hardness range of 170–220 BHN, these plates provide excellent resistance to scratches, impacts, and warping, making them ideal for tool rooms, machine shops, metrology labs, and heavy engineering industries.
The top surface of each plate is precision-machined and hand-scraped to achieve uniform contact and repeatable measurement accuracy. This makes our cast iron surface plates especially suitable for traditional tooling operations, including blue matching, scraping, marking, and general inspection tasks. The stability and rigidity of cast iron allow the plate to withstand heavy loads, clamping forces, and mechanical stresses without compromising accuracy—an advantage over granite when high-strength setups or fixtures are required.
SPT Metrology offers cast iron surface plates in a wide range of standard sizes as well as custom sizes, T-slots, threaded inserts, and special configurations based on customer requirements. Whether you need a compact reference plate for bench-level work or a large foundation plate for machine inspection, we ensure precision performance backed by quality materials and expert craftsmanship.
By choosing SPT Metrology cast iron surface plates, you benefit from a dependable and long-lasting measurement base engineered to international standards. Our plates are designed to enhance inspection accuracy, improve toolmaking consistency, and support heavy-duty workshop applications with confidence and reliability.
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