Granite plates are manufactured according to the standards of developed countries; the flatness toler ance is in accordance with granite surface plate standard of GB/T20428-2006 and the Verification Regulation of plates JJG117-2005.
Measuring Temperature 20±2℃
Grade 000: 1x(1+d/1000)
Grade 00: 2x(1+d/1000)
Grade 0: 4x(1+d/1000)
Grade 1: 8x(1+d/1000)
(d for diagonal length, mm)
1.Inspection Surface Plate Precision CDGP series
Order No. |
Type(mm) |
Grade 000 flatness(μm) |
Grade 00 flatness(μm) |
Grade 0 flatness(μm) |
Grade flatness (μm) |
N.W.(kg) |
Precision grade(μm) |
||||||
CDGP100-1001 |
300x200x50 |
0.9 |
1.8 |
3.6 |
7.0 |
9 |
CDGP100-1002 |
300x300x70 |
1.0 |
1.9 |
3.8 |
7.5 |
19 |
CDGP100-1003 |
400x250x70 |
1.0 |
2.0 |
4.0 |
8.0 |
21 |
CDGP100-1004 |
400x400x70 |
1.2 |
2.3 |
4.5 |
9.0 |
34 |
CDGP100-1005 |
630x400x100 |
1.3 |
2.5 |
5.0 |
10.0 |
77 |
CDGP100-1006 |
630x630x100 |
1.3 |
2.5 |
5.0 |
10.0 |
121 |
CDGP100-1007 |
800x500x130 |
1.4 |
2.7 |
5.3 |
11.0 |
159 |
CDGP100-1008 |
900x600x130 |
1.5 |
2.9 |
5.7 |
11.5 |
215 |
CDGP100-1009 |
1000x630x150 |
1.5 |
3.0 |
6.0 |
12.0 |
290 |
CDGP100-1010 |
1000x750x150 |
1.6 |
3.2 |
6.3 |
12.5 |
345 |
CDGP100-1011 |
1000x1000x150 |
1.8 |
3.5 |
7.0 |
14.0 |
460 |
CDGP100-1012 |
1600x1000x200 |
2.0 |
4.0 |
8.0 |
16.0 |
982 |
CDGP100-1013 |
1600x1600x200 |
2.4 |
4.8 |
9.5 |
19.0 |
1572 |
CDGP100-1014 |
2000x1000x200 |
2.4 |
4.8 |
9.5 |
19.0 |
1228 |
CDGP100-1015 |
2000x1600x250 |
2.5 |
5.0 |
10.0 |
20.0 |
2456 |
CDGP100-1016 |
2500x1600x300 |
2.9 |
5.8 |
11.5 |
23.0 |
3684 |
CDGP100-1017 |
3000x2000x400 |
3.3 |
6.5 |
13.0 |
27.0 |
7368 |
CDGP100-1018 |
4000x2000x500 |
4.0 |
8.0 |
16.0 |
32.0 |
12280 |
CDGP100-1019 |
4000x2500x500 |
4.4 |
8.8 |
17.5 |
35.0 |
15350 |
2. Granite Measuring Instruments Base CDGB series
Order No. |
Type(mm) |
Size of column(mm) |
Flatness of base working surface |
Measuring Range(mm) |
CDGB800-8001 |
150×100×40 |
150×φ18 |
2 |
0-100 |
CDGB800-8002 |
200×150×50 |
300×φ35 |
2 |
0-250 |
CDGB800-8003 |
200×200×50 |
300×φ35 |
2 |
0-250 |
Application
Granite plates are widely used as base and column in precision instruments, such as coordinate measuring machine, vision measuring machine, machine tool etc.