The Main technical parameters of Piston Rod:
|
Standard |
φ6-φ12 |
φ16-φ50 |
φ50-φ120 |
|
Length |
500-2000mm |
1000-5000mm |
1500-5000mm |
|
Surface roughness |
Ra0.2～0.4 |
Ra0.4～0.8 |
Ra0.6～0.8 |
|
Hardness |
HB220-260 |
|
Straightness |
≤0.15/1000 |
|
Roundness |
≤0.01mm |
|
Full length deviation |
≤0.02mm |
|
Chrome Plated thickness |
0.02～0.05mm |
|
material |
(High-quality medium carbon steel) *45#40Cr (or)2Cr13、Sus304 |
Dimension Tolerance Table
|
Tolerance Level
|
level 7
（h7) |
level 8
（h8） |
level 9
（h9） |
level 10
（h10） |
level 11
（h11） |
level f7
（f7） |
level f8
（f8） |
|
Diameter m/m |
|
6-10 |
0
-0.015 |
0
-0.022 |
0
-0.036 |
0
-0.058 |
0
-0.09 |
-0.013
-0.028 |
-0.013
-0.035 |
|
10-18 |
0
-0.018 |
0
-0.027 |
0
-0.043 |
0
-0.058 |
0
-0.09 |
-0.016
-0.034 |
-0.016
-0.043 |
|
18-30 |
0
-0.021 |
0
-0.033 |
0
-0.052 |
0
-0.084 |
0
-0.13 |
-0.02
-0.041 |
-0.02
-0.053 |
|
30-50 |
0
-0.025 |
0
-0.039 |
0
-0.062 |
0
-0.1 |
0
-0.16 |
-0.025
-0.05 |
-0.025
-0.064 |
|
50-80 |
0
-0.030 |
0
-0.046 |
0
-0.074 |
0
-0.12 |
0
-0.19 |
-0.03
-0.06 |
-0.03
-0.076 |
|
80-120 |
0
-0.035 |
0
-0.054 |
0
-0.087 |
0
-0.14 |
0
-0.22 |
-0.036
-0.071 |
-0.036
-0.9 |
| 
