This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X1000STC, 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 SI200X1000STC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 1000mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X1000STC, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI200X1000STC is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 1000mm stroke. It delivers 15708 N push force at 0.5 MPa, utilizing a G3/4 air port and M36x2 rod thread. The direct replacement is the SAI200X1000STC, matching the ISO 15552 mounting interface, TC trunnion, and port size exactly.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. It also adds SAIL, SAIF, and BSAI variants the SI lacked. The -S magnet works with CS1-B/DS1-B sensors, and Viton H seals raise heat to 150 C.
| Model | Airtac SI200 Standard Cylinder SI200X1000STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X1000STC |
| Bore size | Ø200 mm |
| Stroke | 1000 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 SAI200X1000STC 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 SAI200X1000STC 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. |
| ×1000 | 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).
Drives large stamping dies requiring 15708 N push force at 0.5 MPa, utilizing the 1000mm stroke for deep-draw operations.
Shifts heavy bulk material diverters on wide conveyors, taking advantage of the 3204 kgf max theoretical force at 1.0 MPa.
To replace the SI200X1000STC, order the SAI200X1000STC. Confirm the ISO 15552 TC trunnion mounting, G3/4 port, and the -S magnet for CS1-B/DS1-B sensors. Sizing both ways: a 160mm bore yields 10053 N [email protected], while a 200mm bore yields 15708 N. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock or pilot check valve for load holding, or specify the SAIL/BSAI lock variant. At 1000mm stroke, prevent rod bending by guiding the load externally to avoid side-load damage.
Replacement checklist
Yes, the SI200X1000STC is discontinued. The direct replacement is the SAI200X1000STC. It is dimensionally interchangeable per ISO 15552, keeping the same 200mm bore, 1000mm stroke, G3/4 port, TC mount, and output force.
It uses a G3/4 air port. 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 max of 3204 kgf at 1.0 MPa. Speed is 30-500 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X1000STC replacement — usually within 7-8 hours.