Granite Inspection Surface Plate
Material : Jinan Black Granite
Flatness tolerance :
Grade 000,Grade 00,Grade 0,Grade 1
Welcome to your enquiry for other specificationa.The largest size for production is 4000mm width and 100000mm length .
We also accept to do relevant processing on the plate ,such as drilling ,glue T-slot ,dovetail slot ,etc.(According to the drawing ,estimate the product .)
The "GOLD STONE" brand granite surface plate refers to the advanced standards of the developed countries ,and its flatness tolerance is in accordance with the GB/T 20428-2006 Surface Plate Standard :
Grade 000 (0.003xL+2.5)/4µm
Grade 00 (0.003xL+2.5)/2µm
Grade 0 (0.003xL+2.5)/ µm
Grade 1 (0.006xL+5)µm
Specifications and Precision grade as follows :
| TYPE(mm) | Precision Grade | ||||
| Grade 000 flatness | Grade 00 flatness | Grade 0 flatness | Grade 1 flatness | Net Weight(kg) | |
| 300x200x50 | 0.9 | 1.8 | 3.6 | 7 | 9 |
| 300x300x70 | 1 | 1.9 | 3.8 | 7.5 | 19 |
| 400x250x70 | 1 | 2 | 4 | 8 | 21 |
| 400x400x70 | 1.2 | 2.3 | 4.5 | 9 | 34 |
| 630x400x100 | 1.3 | 2.5 | 5 | 10 | 77 |
| 630x630x100 | 1.3 | 2.5 | 5 | 10 | 121 |
| 800x500x130 | 1.4 | 2.7 | 5.3 | 11 | 159 |
| 900x600x130 | 1.5 | 2.9 | 5.7 | 11.5 | 215 |
| 1000x630x150 | 1.5 | 3 | 6 | 12 | 290 |
| 1000x750x150 | 1.6 | 3.2 | 6.3 | 12.5 | 345 |
| 1000x1000x150 | 1.8 | 3.5 | 7 | 14 | 460 |
| 1600x1000x200 | 2 | 4 | 8 | 16 | 982 |
| 1600x1600x200 | 2.4 | 4.8 | 9.5 | 19 | 1572 |
| 2000x1000x200 | 2.4 | 4.8 | 9.5 | 19 | 1228 |
| 2000x1600x250 | 2.5 | 5 | 10 | 20 | 2456 |
| 2500x1600x300 | 2.9 | 5.8 | 11.5 | 23 | 3684 |
| 3000x2000x400 | 3.3 | 6.5 | 13 | 27 | 7368 |
| 4000x2000x500 | 4 | 8 | 16 | 32 | 12280 |
| 4000x2500x500 | 4.4 | 8.8 | 17.5 | 35 | 15350 |
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.
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.
