Large Cast Iron Surface Plate

Large cast iron surface plate is a high-precision planar reference instrument compliant with GB/T22095-2008 standard, specifically designed for detecting and marking large workpieces. Crafted from premium gray cast iron through precision casting and multi-stage aging treatment, it features exceptional flatness and dimensional stability. As a core benchmark tool in heavy-duty manufacturing, large cast iron surface plate provides reliable planar support for inspecting workpiece errors, ensuring the accuracy of large components before delivery, and is widely recognized in industries requiring high-precision measurement of large-scale parts.

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Description

Product Features

Superior flatness: Grade 0/1/2 optional, meeting high-precision measurement requirements.
Stable performance: Multi-stage aging eliminates internal stress, ensuring long-term dimensional stability.
Wear-resistant surface: Precision grinding and quenching treatment extends service life.

Components

Parameter Category	Specification Details	Remarks
Material	Gray Cast Iron HT250/HT300	Complies with GB/T22095-2008 standard
Size Range	Sizes can be customized according to requirements
Surface Hardness	HB180-HB220 (after quenching and tempering treatment)
Maximum Load-bearing Capacity	Depends on the thickness and structure of the plate
Surface Roughness	Ra≤0.8μm	Precision-ground surface
T - slot Specification	Slot width: 14mm/18mm/22mm; Number of slots: 4-12	Optional, used for clamping workpieces