This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X1400S, 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 SI200X1400S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 1400mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X1400S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI200X1400S is a discontinued double-acting ISO 15552 profile cylinder. Generating 15708 N push at 0.5 MPa through a 200 mm bore, it is superseded by the SAI200X1400S direct replacement. This upgrade retains the exact G3/4 port, M36x2 thread, and 1400 mm stroke, dropping straight into existing fixtures.
The SAI family introduces an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. For applications needing load holding on air loss, the SAI line adds SAIL and BSAI lock variants the SI lacked.
| Model | Airtac SI200 Standard Cylinder SI200X1400S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X1400S |
| Bore size | Ø200 mm |
| Stroke | 1400 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 SAI200X1400S 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 SAI200X1400S 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. |
| ×1400 | 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 presses and stamping dies requiring up to 21991 N of push force at 0.7 MPa over an extended 1400 mm travel.
Shifts heavy loaded pallets in automated distribution centers, utilizing the 801 kg vertical lift capacity safely.
Opens and closes massive industrial blast doors or machinery guards where a 200 mm bore and long stroke are essential.
To replace the SI200X1400S, order the SAI200X1400S keeping the identical ISO 15552 mounting interface, 200 mm bore, 1400 mm stroke, G3/4 port, and magnet for CS1-B/DS1-B switches. If you need less force, the neighboring 160 mm bore offers 10053 N push at 0.5 MPa; for more power, note this bore already maxes at 3204 kgf at 1.0 MPa. Because this is a 1400 mm stroke, use external guides to prevent rod bending and side-load damage. A plain cylinder drifts without live air—the cushion only decelerates—so use an external rod lock or pilot check valve for load holding.
Replacement checklist
Yes, the SI200X1400S is discontinued. The direct replacement is the SAI200X1400S. It shares the same ISO 15552 mounting interface, 200 mm bore, 1400 mm stroke, output force, and G3/4 port, fitting existing fixtures perfectly.
The 200 mm bore features a G3/4 port and delivers 15708 N push / 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, and a theoretical max of 3204 kgf at 1.0 MPa. It operates at 30-500 mm/s with a 50 mm adjustable cushion.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X1400S replacement — usually within 7-8 hours.