This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX195S, 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 SI200 Standard Cylinder SI200BX195S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 195mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX195S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI200BX195S is a discontinued double-acting ISO 15552 profile cylinder featuring a 200mm bore and 195mm stroke. Delivering 15708 N push force at 0.5 MPa via a G3/4 port, it is replaced by the SAI200BX195S. This direct upgrade shares the exact ISO 15552 mounting interface, bore, stroke, and force, fitting existing fixtures perfectly.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. For load holding, note that standard cylinders drift on air loss; cushions only decelerate, so use an external rod lock or SAIL/BSAI variant. The -B rod option is SUS304 stainless, and the -S magnet works with legacy CS1-B/DS1-B sensors.
| Model | Airtac SI200 Standard Cylinder SI200BX195S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX195S |
| Bore size | Ø200 mm |
| Stroke | 195 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 SAI200BX195S 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 SAI200BX195S 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. |
| ×195 | 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 secure large steel fabrications during heavy-duty machining and welding operations.
Provides the robust 15708 N push force required to eject dense molded components from industrial tooling safely.
Drives heavy-load lifting platforms, utilizing the 801 kg vertical lift capacity to elevate substantial freight assemblies.
To replace the SI200BX195S, order the SAI200BX195S. Confirm the ISO 15552 mounting interface, 200mm bore, 195mm stroke, G3/4 port, and mounting accessory. The -S magnet enables current AirTAC switches (replacing legacy CS1-B/DS1-B). Sizing both ways: a 160mm bore yields 10053 N push @0.5 MPa, while 28274 N is available @0.9 MPa. For load holding on air loss, cushions only decelerate; use a pilot check valve or SAIL lock variant. At 195mm stroke, side-load risks are low, but ensure guide alignment to prevent rod bending.
Replacement checklist
Yes, the SI200BX195S is discontinued. The direct replacement is the SAI200BX195S. It shares the identical ISO 15552 mounting interface, 200mm bore, 195mm stroke, output force, and G3/4 port, fitting seamlessly into your existing fixtures.
This double-acting cylinder features 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.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX195S replacement — usually within 7-8 hours.