Black Granite Calibration Surface Plate Testing Table

ADVANTAGES

A.The granite is after a long-term natural aging, the organizational structure is uniform, the expansion coefficient is small, the internal stress completely disappeared, as a result of which the precision is very high.

B.Good rigidity, high hardness, strong wear resistance.

C.Not afraid of acid and alkali corrosion, will not rust; do not need oiling, easy to maintain, long service life.

D. Will not scratch, will not limited by the constant temperature conditions, and can maintain the measurement precision at room temperature.

E.Will not be magnetized, and can move smoothly while measuring, no tight feeling, free of the affect of moisture, good flatness

Granite surface plate has the following characteristics:

Specification:

1.Specific Gravity(Proportion):3.30g/cm3 or 2970-3070kg/m2

2.Shore Hardness:>70Hs-80Hs

3.Tensile strength:211Kg/cm2

4.Compressive strength:254-254Mpa

5.Linear expansion Coefficient:4.61'10-6/ºC

6.Elastic Modulus:30-50Gpa

7.Water Absorptivity:≤0.13%

8.Flexible grinding capacity:1.27-1.47N/mm2

Our granite surface plate refers to the advanced standards of the leading countries, and its flatness tolerance is in accordance with the JB/T 7975-1999 Surface Plate:

Grade 000 =1x(1+d/1000)/μm

Grade 00 =2x(1+d/1000)/μm

Grade 0 =4x(1+d/1000)/μm

Grade 1 =8x(1+d/1000)/μm

(d is the length of the diagonal)

Willing Measuring Tools Co. Ltd was established in 2000, which is one of the earliest factories specializing in making all kinds of precise measuring tools. After more than 10 years of continuous innovation and development, the factory has formed an entity system with a certain scale of productivity. We are at the domestic advanced level, especially in terms of innovation ability, technical strength and production experience, etc.

The company mainly produces all kinds of measuring tools, each product produced by our company is in line with the requirements of the relevant industries in the country. Our company also has independent laboratories, and has imported a large number of advanced production equipments. With good management model and a advanced production system, the quality of the machines and the delivery time has been well guaranteed. Because of this, the company's brand is increasingly accepted by customers at home and abroad. We also make OEM production for many domestic and foreign brands.

The company has always implemented: "the same quality, lower prices; the same price, higher-quality" business philosophy, and always take the principle of "integrity, struggle, hard work" as a development objective and "customer satisfaction " as our final goal. We are willing to go forward with all the friends hand in hand. Warmly welcome domestic and foreign customers to visit our company for guidance. All employees of Willing Measuring Tools Co., Ltd. are looking forward to cooperate with you sincerely.