Precision:according to the national standards measurement examination regulations execution:
straightness&flatness of working surface
parallelism between Working surfaces
TYPE
(mm)
precision grade(um)
00
0
00
0
500x100x40
1.6
2.6
2.4
3.9
750x100x40
2.1
3.5
3.2
5.3
1000x120x60
3.0
5.0
4.5
7.5
1500x150x60
4.4
7.4
6.6
11.1
2000x200x80
5.4
10
8.1
13.5
3000x200x80
8
16
12
24
Less ...