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High Precision Granite Straight Edges
QIANSHAO is the leading manufacturer of Granite Surface Plates since 1979, providing various kinds of high accuracy and quality granite products.
Product Speciality:
1. Made of high quality Jinan Black Granite
2. High precision and high stability.
3. No rust and anticorrosion.
4. Non magnetization.
5. Good abrasion resistance.
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: 4.61x10-6°C
Elastic Modulus: 30-50Gpa
Water Absorptivity: ≤0.13%
Product Application:
Mainly used as installation and inspection of machine tools, inspect vertical degree, parallelism and straightness of guideways and precision components in modern industry and scientific research institutes.
Specifications:
Note : We are able to manufacture according to customer's specifications.
QIANSHAO is the leading manufacturer of Granite Surface Plates since 1979, providing various kinds of high accuracy and quality granite products.
Product Speciality:
1. Made of high quality Jinan Black Granite
2. High precision and high stability.
3. No rust and anticorrosion.
4. Non magnetization.
5. Good abrasion resistance.
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: 4.61x10-6°C
Elastic Modulus: 30-50Gpa
Water Absorptivity: ≤0.13%
Product Application:
Mainly used as installation and inspection of machine tools, inspect vertical degree, parallelism and straightness of guideways and precision components in modern industry and scientific research institutes.
Specifications:
| specification model |
straightness&flatness of working surface | parallelism between working surfaces | squareness between working surface and side surface | overall dimension(mm) | weight/unit(kg) | |||
| precision grade(µm) | ||||||||
| 00 | 0 | 00 | 0 | 00 | 0 | |||
| SP400 | 1.6 | 2.6 | 2.4 | 3.9 | 8 | 13 | 400×60×35 | 3.14 |
| SP630 | 2.1 | 3.5 | 3.2 | 5.3 | 10.5 | 18 | 630×100×50 | 10.74 |
| SP1000 | 3 | 5 | 4.5 | 7.5 | 15 | 25 | 1000×160×50 | 46 |
| SP1600 | 4.4 | 7.4 | 6.6 | 11.1 | 22 | 37 | 1600×200×80 | 82.2 |
| SP2000 | 5.4 | 9 | 8.1 | 13.5 | 27 | 45 | 2000×250×100 | 159.6 |
Note : We are able to manufacture according to customer's specifications.