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Granite cube
Our granite measuring devices and granite mechanical components are made of high qualityJinan Blackgranite.Due to their high precision,long duration,good stability and corrosion resistance,they have been more and more used in product inspection of modern industy and such scientific areas as mechanicalaerospace and scientific researches. ( Granite cube)
Physical Property ofJi Nan BlackGranite:
Specific Gravity: 2970-3070kg/m3
Compressive Strength: 245-254Mpa
Elastic Modulus: 30-50Gpa ( Granite cube)
Linear Expansion Coefficient: 4.61x10-6/0C
Water Absorptivity: ≤0.07
Shore Hardness: Above 70Hs
The "GOLD STONE"brand of granite measuring tools have the following characteristics:
1 High precision reliable stability resistant to deform and guaranteed accuracy under normal ambient temperature.
2 No-rust and anticorrosion. ( Granite cube)
3 Wear resistance long service life.
4 Any cutting or scraching for working surface does not bring about roughedgeswhich might influence its measuring precision.
5 Non magnetization.
6 Glossy surface without sluggishness when the workpieces or tools are moving on it.
(Granite cube)
CNC Components made of granite,including base,column,beam and railway,with a maximum of 6000x3500x600mm.
We can provide different pieces for our customer of electronic industry, the largest size is:6000x3500x500mm.
.( Granite cube)
|
TYPE(mm) |
Flatness of working surfaceparallelism of opposite surface |
squareness between working surfaces |
Squareness between working surface and side surface |
|||
Precision grade | ||||||
00 |
0 |
00 |
0 |
00 |
0 |
|
400x60x25 |
1.6 |
2.6 |
2.4 |
3.9 |
8.0 |
13 |
630x100x35 |
2.1 |
3.5 |
3.2 |
5.3 |
10.5 |
18 |
1000x160x50 |
3.0 |
5.0 |
4.5 |
7.5 |
15 |
25 |
1600x250x80 |
4.4 |
7.4 |
6.6 |
11.1 |
22 |
37 |
2000x300x100 |
5.4 |
10.0 |
8.1 |
13.5 |
27 |
45 |
( Granite cube)
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