This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX170S, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SI200 Standard Cylinder SI200AX170S
The AirTAC SI200 Standard Cylinder SI200AX170S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 170mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX170S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke170 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200AX170S
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SI200 Standard Cylinder SI200AX170S
The AirTAC SI200AX170S is a discontinued double-acting ISO 15552 profile cylinder featuring a 200mm bore and 170mm stroke. Built with an extruded aluminum barrel and a SUS420J2 stainless piston rod (-A), it delivers 15708 N push force at 0.5 MPa through a G3/4 port. The direct replacement is the SAI200AX170S, matching the ISO 15552 mounting interface, bore, stroke, force, and port size.
The SAI upgrade introduces an advanced piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. This -S model includes a piston magnet for legacy CS1-B/DS1-B sensors, while the SAI family adds lock variants (SAIL, BSAI) the original SI lacked.
Airtac SI200 Standard Cylinder SI200AX170S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX170S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX170S |
| Bore size | Ø200 mm |
| Stroke | 170 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2.0 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI200AX170S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
The SAI200AX170S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI200 Standard Cylinder SI200AX170S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×170 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SI200 Standard Cylinder SI200AX170S Is Used
Heavy Stamping Press
Drives large heavy-duty stamping dies requiring 15708 N of push force at 0.5 MPa, utilizing the 170mm stroke to form thick metal components.
Large Mold Clamping
Secures oversized industrial molds on injection machinery, using the SUS420J2 stainless rod to resist corrosion in humid production environments.
Replacing the Airtac SI200 Standard Cylinder SI200AX170S with the SAI200AX170S
To replace the discontinued SI200AX170S, order the SAI200AX170S. Verify your ISO 15552 mounting interface, 200mm bore, 170mm stroke, G3/4 port, and mounting accessory. The -A rod is SUS420J2 stainless steel and the -S magnet works with CS1-B/DS1-B switches (the SAI uses current AirTAC switches). Sizing both ways: a 160mm bore offers 10053 N push at 0.5 MPa, while a 200mm bore hits 21991 N at 0.7 MPa. Because stroke is 170mm, ensure adequate guide support to prevent rod bending under side loads. A plain cylinder drifts on air loss; the cushion only decelerates. For load holding, use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX170S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI200 Standard Cylinder SI200AX170S FAQ
Yes, the AirTAC SI200AX170S is discontinued. The direct replacement is the SAI200AX170S. It features the same ISO 15552 mounting interface, 200mm bore, 170mm stroke, output force, and G3/4 port, fitting existing fixtures perfectly while upgrading the piston seal.
It has a G3/4 air port. The force ratings are: 15708 N push and 15080 N pull at 0.5 MPa; 21991 N push at 0.7 MPa; 28274 N push at 0.9 MPa; and a theoretical maximum of 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200AX170S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX170S replacement — usually within 7-8 hours.