This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX1000, 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 SI200AX1000 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 SAI200AX1000, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI200AX1000 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 through a G3/4 port. AirTAC replaced this legacy unit with the SAI200AX1000, a direct sharing the exact ISO 15552 mounting interface, bore, stroke, output force, and accessories.
The SAI upgrade features a modernized piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. This SKU uses a SUS420J2 stainless steel rod and lacks a magnet, so it cannot accept CS1-B or DS1-B sensors. For load holding, note that the air cushion only decelerates; explore the SAIL or BSAI lock variants.
| Model | Airtac SI200 Standard Cylinder SI200AX1000 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX1000 |
| 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 SAI200AX1000 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 SAI200AX1000 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 tonnage metal forming operations where the 28274 N push at 0.9 MPa provides the brute force required for deep drawing and stamping heavy gauge materials.
Shifts massive diverters on high-capacity aggregate or bulk material conveyors, utilizing the 1000mm stroke to clear wide product lanes effectively.
To replace the SI200AX1000, order the SAI200AX1000. Confirm the ISO 15552 mounting interface, the 1000mm stroke, the G3/4 port, and the SUS420J2 (A) rod material. Because this is a no-S SKU without a magnet, it cannot support position sensing; if switches are needed, select an SAI model with the magnet option. Sizing both ways: this 200mm bore yields 15708 N push at 0.5 MPa; dropping to a 160mm bore gives 10053 N. For higher force, the maximum theoretical output is 3204 kgf at 1.0 MPa. A plain cylinder does not hold load without live air—the cushion only decelerates—so use an external rod lock or pilot check valve for holding, or specify the SAIL or BSAI lock variant. Finally, at 1000mm stroke, prevent rod bending by guiding the load externally to avoid side-load damage.
Replacement checklist
Yes, the SI200AX1000 is discontinued. The direct replacement is the SAI200AX1000. It is dimensionally interchangeable per ISO 15552, retaining the same 200mm bore, 1000mm stroke, force, G3/4 port, and mounting interface.
Operating at 30-500 mm/s, it provides 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 SAI200AX1000 replacement — usually within 7-8 hours.