The SI series ISO15552 standard pneumatic cylinder are available in three types: standard double-acting, SID double-rod double-acting, and SIJ double-rod double-acting with adjustable stroke. They conform to the ISO 15552 standard, which means their installation dimensions are larger than SU pneumatic cylinders of the same size. Fixed accessories are not interchangeable and are only compatible with ISO 15552 (formerly ISO 6431) specifications.
1.IS015552(original IS06431) standard pneumatic cylinder;
2.The piston seal is composed of 2 Y-shape one-way seal structure,which has compensation function,long service life and low start-up pressure,
3.The 米-shaped aluminum pipe without tie rod has good corrosion resistance;
4.The buffer adjustment of cylinder is smooth and steady:
5.Cylinders and accessories for installation with several specifications are optional.
SI series ISO15552 standard pneumatic cylinder symbol:
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Ordering code |
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SI |
160 |
|
X |
50 |
|
|
S |
|
|
|
|
SID |
160 |
|
X |
50 |
|
|
S |
|
|
|
|
SIJ |
160 |
|
X |
50 |
-- |
20 |
S |
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|
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Model |
Bore size |
Rod material |
|
stroke |
|
Adjustable stroke |
Magnet |
Mounting type |
Sealing material |
Thread type |
|
SI:double acting type |
|
Blank :medium carbon steel |
|
|
|
10:10mm |
Blank:without magnet |
|
Blank:TPU |
Blank :PT（55°） |
|
SID:double rod type |
|
A:SUS420J2 |
|
|
|
20:20mm |
S:with magnet |
H:Viton |
G:G（55°） |
|
|
SIJ:adjustable stroke type |
|
B:SUS304 |
|
|
|
30:30mm |
|
N:NBR |
T:NPT(60°） |
|
|
Bore Size(mm) |
32 |
40 |
50 |
63 |
80 |
100 |
125 |
160 |
200 |
|
|
Acting Mode |
Double Acting |
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Working medium |
Cleaned Air |
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Fixed form |
SI |
FA FB CA CB CR LB TC FTC TCM1 TCM2 |
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SID |
FA LB TC FTC TCM1 TCM2 |
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SIJ |
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Working Pressure |
0.1-1.0 MPa (14-145Psi) |
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Proof Pressure |
1.5 Mpa (215Psi) |
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Working Temperature Range |
‘-20-80℃ |
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Use speed range |
30-800 |
30-500 |
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Buffering Mode |
Adjustable buffer |
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Buffering Distance(mm) |
27 |
30 |
36 |
40 |
50 |
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Port size |
PT1/8 |
PT1/4 |
PT3/8 |
PT1/2 |
PT3/4 |
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SI vs SU Pneumatic Cylinders: Key Differences and Specification Comparison
|
Model: |
SU
|
SI
|
|
Standard |
SU series cylinder ：JIS / AirTac |
SI series cylinder :ISO1552（ISO6431) |
|
Applied Countries/Regions |
Mostly used in Asian equipment (especially Taiwan and Japan system equipment) |
Mostly used in European and American equipment, automation production lines |
|
installation dimension |
Compact |
Larger |
|
Bore size |
32-400 |
32-200 |
|
Fixed accessories |
Accessories are compatible with the SC series pneumatic |
ISO6431 series ( DNC, SI, SAI, SE )有产品的增加内链 |
|
Internal Structural Differences (not visible from the outside) |
End cover dimensions (mounting hole positions, cylinder head size, cylinder tail size) Piston rod thread length Inner groove structure of cylinder profile Differences between European and Japanese standard mounting holes SU pneumatic cylinder and SI air cylinderCannot be interchanged, and accessories (CA /CB foot brackets,FA-flanges,TC-M, joint heads) are not compatible |
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What brand can SI cylinders replace?
SI cylinders can replace AIRTAC’s SI series cylinders. However, please note that AIRTAC has discontinued the SI series. Their new replacement model is called SAI series pneumatic cylinder, which has the same function and the same mounting dimensions.
What are the differences between the new SAI series and the old SI series standard air cylinder?
The new SAI cylinders feature external grooves for sensor installation, making sensor mounting quick and convenient.
What type of cylinder is SI?
SI is a standard air cylinder.
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