This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X890S, 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 SI200X890S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 890mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X890S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI200X890S is a discontinued double-acting ISO 15552 profile cylinder featuring a 200mm bore and 890mm stroke. Delivering 15708 N push force at 0.5 MPa via a G3/4 port, it is replaced by the SAI200X890S.
The SAI direct maintains identical ISO 15552 mounting, force, and stroke, but adds an upgraded piston seal with two Y-shaped elements for low start-up pressure. The SAI family also introduces SAIL and BSAI lock variants absent in the SI line.
| Model | Airtac SI200 Standard Cylinder SI200X890S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X890S |
| Bore size | Ø200 mm |
| Stroke | 890 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 SAI200X890S 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 SAI200X890S 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. |
| ×890 | 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).
Applies the 21991 N @0.7 MPa thrust for actuating large metal stamping and forming presses requiring immense downward force.
Handles the heavy payload and extended 890mm travel needed to push fully loaded industrial pallets onto secondary conveyor lines.
To replace this SI200X890S, order the SAI200X890S and confirm the ISO 15552 mounting, 890mm stroke, G3/4 port, and the -S magnet for legacy CS1-B/DS1-B sensors. If sizing alternatives, neighbouring bores offer different footprints, while the 15708 N @0.5 MPa push force (21991 N @0.7 MPa) dictates capacity. Because the 890mm stroke is long, use external guides to prevent rod bending and side-load damage. The standard cushion only decelerates; for load holding on air loss, specify the SAIL lock variant or an external pilot check valve.
Replacement checklist
Yes, the SI200X890S is discontinued. The direct replacement is the SAI200X890S. It shares the same ISO 15552 mounting interface, 200mm bore, 890mm stroke, force, and G3/4 port, fitting existing fixtures perfectly.
It features a G3/4 port and delivers a push force of 15708 N and pull of 15080 N at 0.5 MPa. At 0.7 MPa push is 21991 N, 28274 N at 0.9 MPa, with a theoretical max of 3204 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X890S replacement — usually within 7-8 hours.