Black Marble Surface Plate Granite Lab Table Measuring Tools Granite Surface Platform
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- Supplier: Hebei Precise Technology Co. Ltd.Hebei Ltd.
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Product Overview
Description
Product description
The main mineral composition of granite is pyroxene, plagioclase, a small amount of olivine, biotite and trace magnetite, precise structure, after millions of years of aging, uniform texture, good stability, high strength, high hardness, can maintain high precision under heavy load. Suitable for industrial production and laboratory measurement work.Specific gravity：2970-3070kg/m3
Compressive strength：245-254N/mm2
Elastic wear：1.27-1.47N/mm2
Linear expansion coefficient：4.61 × 10-%℃
Water absorption：<0.13%
Shore hardness：Hs70 or above
Rank | Work surface accuracy (Temperature 20 ° C,d is diagonal length,unit is mm.) | Plane fluctuation of the working face |
000 | 1×(1+d/1000)um | 2μm |
00 | 2×(1+d/1000)um | 4μm |
0 | 4×(1+d/1000)um | 8μm |
1 | 8×(1+d/1000)um | 16μm |
The shape of the working surface includes rectangles, squares, circles, etc. Besides, V-shaped, T-shaped, U-shaped grooves,dovetail grooves, round holes, long holes, etc. These also can be machinable. It is a flat reference measuring tool for workpiece, equipment inspection, scribing,assembly, welding, assembly, and riveting.
High precision without deformation
After long-term natural aging, the rock prevents the structure from being uniform, the internal stress disappears, and it is not easy to wear，Not easy to produce raised lines or burrs
Uneasily magnetized
No magnetization, able to move smoothly during measurement, no feeling of stagnation, not affected by moisture, plane weighing well
Strong welding bracket
The bracket is sturdy and lightweight, with strong welding and equipped with an adjustable top rod, making it convenient and practical
Corrosion resistance
Acid, alkali, and corrosion resistant, durable and resistant to moisture and rust. Easy to use and maintain, with strong load-bearing capacity
Hebei Precise Technology Co., Ltd.
We have 20 years of experience in domestic trade production factories. Our company's main products include the design, manufacturing, and sales of 3D flexible platforms, magnesium aluminum flat ruler series, cast iron flat ruler series, cast iron platform series, cast iron plate series, cast iron bent plate series, square box series, machine seat cushion series, granite measuring tool series, and machine bed series.
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