Granite Guideways

Granite rail is used in CMM, drilling& milling machines for PC board,Laser machines and CNC as a guideway with Grade00 of DIN876/GB/JIS .

Physical Property of Jinan Black Granite:

Specific Gravity: 3.03 g/cm3
Shore Hardness: > 70Hs-80Hs
Tensile strength: 211Kg/cm2
Compressive Strength: 245-254Mpa
Linear Expansion Coefficient: 4.61´10--6/°C
Elastic Modulus: 30-50Gpa
Water Absorptivity: ≤0.13%

Black Granite Plates are in black color with bright, homogeneous structure,good stability, high hardness, anti-rust and chemical-resistance.

Material: Black Jinan granite, India Black Granite

Standard: GB/T 20428-2006, DIN876, JIS

Specification: The maximum workability is 10000mm in length, 8000mm in width and 800mm in height or customize (special size is acceptable following customers’ requirement)

Surface: T-slots, dovetail-shaped slots, holes, etc.

Hardness of the working surface: more than HS70

Surface treatment: ground finish

Precision grade: 00-1

Packaging: Export wooden box

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.