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Shanghai JINYU Machinery Co.,Ltd
[China]
The precision of granite surface plates is in line with the standards of advanced countries.
Tolerance of planeness: Standard
JB/T7975-1999
Grade 000 = 1 × ( 1+d/1000 ) μm
Grade 00 = 2 × ( 1+d/1000 ) μm
Grade 0 = 4 × ( 1+d/1000 ) μm
Grade 1 = 8 × ( 1+d/1000 ) μm
( "d" is the diagonal mm ) (The measuring temperature is normally 20±2°C)
Physical Properties:
S.G: 2970-3070kgs/m3
Compressive strength: 245-254N/mm2
Elastic modulus: 1.27-1.47N/mm2
Lindar expansion coefficient: 4.61 × 10-6/°C
Water absorptivity:<0.13%
Shore scleroscope hardness: more than Hs70
| Specification Length × Width × Thickness (mm) |
Weight (kgs) | Precision Grade (um) | |||
| 000 | 00 | 0 | 1 | ||
| 300 × 200 × 50 | 17 | 1.5 | 3 | 6 | 12 |
| 300 × 300 × 50 | 19 | 1.5 | 3 | 6 | 12 |
| 400 × 300 × 70 | 25 | 1.5 | 3 | 6 | 12 |
| 400 × 400 × 70 | 48 | 2 | 3.5 | 6.5 | 13 |
| 630 × 400 × 100 | 76 | 2 | 3.5 | 7 | 14 |
| 630 × 630 × 100 | 155 | 2 | 4 | 8 | 16 |
| 800 × 500 × 130 | 156 | 2 | 4 | 8 | 16 |
| 1000 × 630 × 130 | 284 | 2.5 | 4.5 | 9 | 18 |
| 1000 × 750 × 150 | 338 | 2.5 | 5 | 9 | 18 |
| 1000 × 1000 × 150 | 450 | 2.5 | 5 | 10 | 20 |
| 1600 × 1000 × 200 | 963 | 3 | 6 | 12 | 24 |
| 2000 × 1000 × 200 | 1200 | 3.5 | 6.5 | 13 | 26 |
| 1600 × 1600 × 300 | 2312 | 3.5 | 6.5 | 13 | 26 |
| 2000 × 1600 × 300 | 2890 | 3.5 | 7 | 14 | 28 |
| 2500 × 1600 × 300 | 3612 | 4 | 8 | 16 | 32 |
| 3000 × 2000 × 500 | 9030 | 4.5 | 9 | 18 | 36 |
| 4000 × 2000 × 500 | 12040 | 5.5 | 11 | 22 | 44 |
| 6000 × 2000 × 700 | 25284 | 7.5 | 15 | 30 | 60 |
Any special specification can be customed
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