This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X110S, 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 SI32X110S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 110mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X110S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32X110S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 110mm stroke. It delivers 402N push force at 0.5MPa via a G1/8 port. The direct replacement is the SAI32X110S, matching the exact bore, stroke, force, port and ISO 15552 mounting interface.
The SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The -S suffix means a piston magnet for CS1-B/DS1-B sensors; SAI uses current AirTAC switches. The SAI family also adds SAIL, SAIF and BSAI variants.
| Model | Airtac SI32 Standard Air Cylinder SI32X110S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X110S |
| Bore size | Ø32 mm |
| Stroke | 110 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 SAI32X110S 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 SAI32X110S 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. |
| ×110 | 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).
Uses the 402N push force at 0.5MPa to eject small molded components from fixtures reliably.
Short 110mm stroke actuates diverting gates on lightweight packaging lines at up to 800mm/s.
Provides low-profile clamping for thin workpieces where a 32mm bore fits tight tooling spaces.
To replace the SI32X110S, order the SAI32X110S. Verify the ISO 15552 mounting interface, 110mm stroke, G1/8 port, and your mounting accessory (LB, FA, TC, etc.). The -S magnet is retained. Sizing both ways: a 40mm bore yields 628N push at 0.5MPa, while dropping to 0.5MPa on this 32mm bore gives 402N. A plain cylinder drifts on air loss; cushions only decelerate. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. With a 110mm stroke, side-load is low, but ensure rod alignment to prevent premature seal wear.
Replacement checklist
Yes, the SI32X110S is discontinued. The direct replacement is the SAI32X110S. It is dimensionally interchangeable per ISO 15552, retaining the same 32mm bore, 110mm stroke, force, G1/8 port and mounting interface.
The 32mm bore uses 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 max of 82kgf at 1.0MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X110S replacement — usually within 7-8 hours.