Marble Platform Manufacturer

Technical Parameter

Introduction to Marble Platform Manufacturers Marble platforms, also known as granite slabs, marble slabs, or granite platforms, are mainly composed of minerals such as pyroxene, plagioclase, small amounts of olivine, biotite, and trace amounts of magnetite. They have a black luster, precise structure, uniform texture, good stability, high strength, and high hardness after billions of years of aging. Marble platforms can maintain high precision under heavy loads and are suitable for industrial production and laboratory measurement work.

The marble platform is made of high-quality "Jinan Green" stone material through mechanical processing and manual precision grinding. It has a black luster, precise structure, uniform texture, good stability, high strength, high hardness, and can maintain high precision under heavy loads and general temperatures. It also has the advantages of non rusting, acid and alkali resistance, wear resistance, non magnetization, and invariance

Marble platforms are suitable for measuring tools in mechanical factories. Marble platforms are precision reference measuring tools made of natural stone materials, which are ideal reference surfaces for inspecting instruments, precision tools, and mechanical parts. Especially for high-precision measurements, due to its unique characteristics, cast iron plates are inferior.

The disadvantage of marble platforms is that they cannot withstand excessive impact and knocking, and will deform when exposed to high humidity, with a moisture absorption rate of 1%. A marble platform is a flat plate made of marble material, and the demonstration material used is natural hard marble such as granite, diabase, and gabbro, which have fine particles and dense structures. The marble platform is made of high-quality underground rock layers, which have undergone billions of years of natural aging and have an extremely stable shape, without worrying about deformation due to conventional temperature differences. Marble platform is a precision reference measuring tool made of natural stone materials, which is an ideal reference surface for the inspection of instruments, precision tools, and mechanical parts. Marble platform is particularly suitable for high-precision measurement.

The accuracy of the marble platform refers to national standards, and the flatness tolerance is based on GB4987-85 standard: (d is the diagonal mm) (the measured temperature is generally 20 ± 2 ℃)

Level 000=1 × (1+d/1000) um

Level 00=2 × (1+d/1000) um

Level 0=4 × (1+d/1000) um

Level 1=8 × (1+d/1000) um

Marble platform specific gravity: 2970-3070kg/㎡, compressive strength: 245-254N/m ㎡, coefficient of linear expansion: 4.61 × 10-6/℃, water absorption rate:<0.13%, Shore hardness: Hs70 or above.

The specifications and dimensions of marble platforms are mainly divided into two categories: standard specifications and customized specifications, as follows:

1、 Standard specifications (common sizes)

Basic dimensions

300 × 300 × 70mm, 300 × 400 × 70mm, 400 × 400 × 70mm, etc., suitable for routine measurement needs.

400 × 500 × 100mm, 400 × 600 × 100mm, etc., meet medium precision scenarios.

Large size specifications

1000 × 630 × 150mm, 1000 × 750 × 150mm, etc., suitable for high-precision measurement.

2000 × 3000 × 300mm, 2000 × 4000 × 400mm, etc., meet the testing needs of large equipment.

2、 Customized specifications

Size range: 100 × 100mm~2500 × 4000mm, supports cutting according to customer drawings.

Special function: Customizable slotting, perforation and other structures to meet complex application requirements.

3、 Accuracy level

The standard accuracy levels include Class 000 (1.5 μ m), Class 00 (3 μ m), Class 0 (6 μ m), Class 1 (12 μ m), etc. The accuracy decreases with increasing size.