This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX95S, 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.

The AirTAC Airtac SI200 Standard Cylinder SI200AX95S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 95mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX95S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI200AX95S is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 95mm stroke. It delivers 15708 N push and 15080 N pull at 0.5 MPa, utilizing a G3/4 air port and an M36x2 rod thread. The direct replacement is the SAI200AX95S, sharing the same ISO 15552 mounting interface, output force, and porting to fit existing fixtures directly.
The SAI upgrade features a revised piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. This specific unit includes the -A SUS420J2 stainless steel rod for corrosion resistance and the -S magnet for legacy CS1-B/DS1-B sensors. Note that a plain cylinder drifts without live air; for load holding, consider the SAIL or BSAI lock variants.
| Model | Airtac SI200 Standard Cylinder SI200AX95S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX95S |
| Bore size | Ø200 mm |
| Stroke | 95 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 SAI200AX95S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
The SAI200AX95S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×95 | 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).
Generates 21991 N at 0.7 MPa to drive heavy stamping and forming dies in automotive lines.
Secures large injection molds, relying on the G3/4 port for high-volume actuation.
To replace the discontinued SI200AX95S, order the SAI200AX95S, confirming the ISO 15552 mounting interface, 200mm bore, 95mm stroke, G3/4 port, and the -S magnet for current AirTAC switches. This unit has the -A SUS420J2 stainless rod; verify if your application requires this corrosion-resistant option over standard carbon steel. Sizing both ways: if downsizing from 200mm, the 160mm bore yields 10053 N push at 0.5 MPa, while upsizing is not available above 200mm. A plain cylinder does not hold load without live air, as the 50mm adjustable air cushion only decelerates near stroke end. For secure load holding on air loss, specify an external pilot check valve or the SAIL/BSAI lock variant. The SAI family also adds the SAIF integrated valve option for bores 32-100.
Replacement checklist
Yes, the SI200AX95S is discontinued. The direct replacement is the SAI200AX95S. It is dimensionally interchangeable per ISO 15552, keeping the same 200mm bore, 95mm stroke, G3/4 port, and mounting interface.
The SI200AX95S provides 15708 N push and 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, 28274 N at 0.9 MPa, and a theoretical max of 3204 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX95S replacement — usually within 7-8 hours.