cast iron parallel ruler
Used to test the straightness and flatness of workpiece and equipment installing.
We have standard size in stock .
Made according to standard JB/T7977-99, material HT250, working surface made by skiving or precise rubbing. Used to test the
straightness and flatness of workpiece and equipment installing. Working environment
temperature (20 ± 5) .
straightness and flatness of workpiece and equipment installing. Working environment
temperature (20 ± 5) .
|
Type (mm)
|
Straightness and flatness
of working surface |
Parallelism between working surfaces
|
||||
|
Precision grade ( μm)
|
||||||
|
0
|
1
|
2
|
0
|
1
|
2
|
|
|
500 × 35
|
3
|
6
|
12
|
4.5
|
9
|
18
|
|
750 × 40
|
4
|
8
|
15
|
6
|
12
|
25
|
|
1000 × 50
|
5
|
10
|
20
|
7.5
|
15
|
30
|
|
1250 × 50
|
|
12
|
24
|
|
18
|
36
|
|
1600 × 70
|
|
15
|
30
|
|
20
|
40
|
|
2000 × 80
|
|
18
|
36
|
|
27
|
54
|
|
2500 × 80
|
|
|
44
|
|
|
65
|
|
3000 × 100
|
|
|
52
|
|
|
78
|
|
3500 × 100
|
|
|
60
|
|
|
90
|
|
4000 × 100
|
|
|
68
|
|
|
100
|
Your inquiry will be highly appreciated.Hope this will be a nice start of our long businese
cooperation.
cooperation.