This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X200S, 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 SI32 Standard Air Cylinder SI32X200S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 200mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X200S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32X200S is a discontinued double-acting ISO 15552 profile cylinder featuring a 32mm bore, 200mm stroke, and a G1/8 port. Delivering 402N of push force at 0.5MPa, it is replaced by the SAI32X200S. This direct upgrade shares identical mounting, force, and port specs, fitting existing fixtures seamlessly.
The SAI successor upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life. The -S suffix indicates a piston magnet for legacy CS1-B/DS1-B sensors, while Viton H seals can raise the -20 to +70C range up to 150C.
| Model | Airtac SI32 Standard Air Cylinder SI32X200S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X200S |
| Bore size | Ø32 mm |
| Stroke | 200 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 27 mm |
| Max standard stroke | Up to 1000 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI32X200S 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 | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAI32X200S 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). |
|---|---|
| 32 | Bore size in mm. |
| ×200 | 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).
Provides 402N push at 0.5MPa to reliably eject small machined components from a fixture.
Actuates a diverting gate on a packaging line, handling the 200mm stroke with smooth adjustable cushions.
To replace the SI32X200S, order the SAI32X200S. Verify the ISO 15552 interface, 32mm bore, 200mm stroke, G1/8 port, and mounting accessory. The -S magnet is present for CS1-B/DS1-B switches (the SAI uses current AirTAC sensors). If sizing up, a 40mm bore yields 628N push at 0.5MPa; if sizing down, options are unavailable. At 200mm stroke, watch for rod-bending side loads—use a guide. The plain cylinder drifts without air; for load holding, use an external pilot check valve or the SAIL/BSAI lock variants. SAIF (bores 32-100) adds a built-in valve.
Replacement checklist
Yes, the AirTAC SI32X200S is discontinued. The direct replacement is the SAI32X200S. It is dimensionally interchangeable per ISO 15552, retaining the same 32mm bore, 200mm stroke, G1/8 port, and mounting interface.
The 32mm bore features a G1/8 port. Force output is 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical maximum of 82kgf at 1.0MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X200S replacement — usually within 7-8 hours.