Granite foundation platform is an indispensable workbench for marking, measuring, riveting and welding, and tooling processes. It can also be used as a mechanical testing platform and is suitable for various maintenance work. It is a reference plane for precision measurement and is used as a benchmark for machine tool mechanical maintenance measurement to check the dimensional accuracy or behavioral deviation of parts Granite foundation platform is a precision reference measuring tool made of natural stone materials, which is an ideal reference surface for the maintenance of instruments, precision tools, and mechanical parts. Especially for high-precision measurement, due to its characteristics, cast iron platforms are inferior.

Granite foundation platform is a precision reference measuring tool made of stone material, which is an ideal reference surface for the inspection of instruments, precision tools, and mechanical parts. Especially for high-precision measurement, due to its characteristics, cast iron platforms are inferior.

Granite is made from underground rock layers and has undergone billions of years of natural aging, resulting in an extremely stable shape without worrying about deformation due to conventional temperature differences. After rigorous physical testing and selection, the granite material has fine crystals, a hard texture, a compressive strength of 2290-3750 kg/cm2, and a hardness of 6-7 Mohs hardness. Extremely damaging, acid resistant, alkali resistant, highly resistant, and will not rust. Due to its non-metallic nature, granite has no magnetic reaction or plastic deformation. Its hardness is 2-3 times higher than cast iron (equivalent to HRC>51), therefore it has good accuracy retention.

Even if rock tools are hit by heavy objects during use, they will only drop a few pieces of gravel at most, and will not damage accuracy due to deformation like metal tools. It is superior to precision measurement reference parts made of cast iron and steel, and can achieve high and stable accuracy. The commonly used specifications for granite slabs are 300 × 200 × 50-3000 × 2000 × 400mm, and the accuracy is generally divided into three levels: Grade 00, Grade 0, and Grade 1.